2019 |
Loxton D, Powers J, Townsend N, Harris ML, Forder P, 'Longitudinal inconsistency in responses to survey items that ask women about intimate partner violence', BMC MEDICAL RESEARCH METHODOLOGY, 19 (2019) [C1]
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Nova |
2019 |
Graves A, McLaughlin D, Leung J, Powers J, 'Consent to data linkage in a large online epidemiological survey of 18-23 year old Australian women in 2012-13', BMC Medical Research Methodology, 19 (2019) [C1]
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Nova |
2019 |
Loxton D, Harris ML, Forder P, Powers J, Townsend N, Bytes J, Mishra G, 'Factors Influencing Web-Based Survey Response for a Longitudinal Cohort of Young Women Born Between 1989 and 1995', JOURNAL OF MEDICAL INTERNET RESEARCH, 21 (2019) [C1]
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Nova |
2018 |
Loxton D, Tooth L, Harris ML, Forder PM, Dobson A, Powers J, et al., 'Cohort Profile: The Australian Longitudinal Study on Women's Health (ALSWH) 1989-95 cohort.', International journal of epidemiology, 47 391-392e (2018) [C1]
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Nova |
2018 |
Emuren L, Welles S, Polansky M, Evans AA, Macalino G, Agan BK, et al., 'Lower health-related quality of life predicts all-cause hospitalization among HIV-infected individuals', Health and Quality of Life Outcomes, 16 (2018)
Background: Health-related quality of life (HRQOL) is a patient-centered outcome measure used in assessing the individual's overall functional health status but studies looki... [more]
Background: Health-related quality of life (HRQOL) is a patient-centered outcome measure used in assessing the individual's overall functional health status but studies looking at HRQOL as a predictive tool are few. This work examines whether summary scores of HRQOL are predictive of all-cause hospitalization in the US Military HIV Natural History Study (NHS) cohort. Methods: The Short Form 36 (SF-36) was administered between 2006 and 2010 to 1711 NHS cohort members whose hospitalization records we had also obtained. Physical component summary scores (PCSS) and mental component summary scores (MCSS) were computed based on standard algorithms. Terciles of PCSS and MCSS were generated with the upper terciles (higher HRQOL) as referent groups. Proportional hazards multivariate regression models were used to estimate the hazard of hospitalization for PCSS and MCSS separately (models 1 and 2, respectively) and combined (model 3). Results: The hazard ratios (HR) of hospitalization were respectively 2.12 times (95% CI: 1.59-2.84) and 1.59 times (95% CI: 1.19-2.14) higher for the lower and middle terciles compared to the upper PCSS tercile. The HR of hospitalization was 1.33 times (95% CI: 1.02-1.73) higher for the lower compared to the upper MCSS tercile. Other predictors of hospitalization were CD4 count < 200 cells/mm3 (HR = 2.84, 95% CI: 1.96, 4.12), CD4 count 200-349 cells/mm3 (HR = 1.67, 95% CI: 1.24, 2.26), CD4 count 350-499 cells/mm3 (HR = 1.41, 95% CI: 1.09, 1.83), plasma viral load > 50 copies/mL (HR = 1.82, 95% CI: 1.46, 2.26), and yearly increment in duration of HIV infection (HR = 0.94, 95% CI: 0.93, 0.96) (model 3). Conclusion: After controlling for factors associated with hospitalization among those with HIV, both PCSS and MCSS were predictive of all-cause hospitalization in the NHS cohort. HRQOL assessment using the SF-36 may be useful in stratifying hospitalization risk among HIV-infected populations.
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2018 |
Loxton D, Harris ML, Forder P, Powers J, Townsend N, Byles J, Mishra G, 'Factors Influencing Web-Based Survey Response for a Longitudinal Cohort of Young Women Born Between 1989 and 1995 (Preprint) (2018)
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2017 |
Hure A, Powers J, Chojenta C, Loxton D, 'Rates and Predictors of Caesarean Section for First and Second Births: A Prospective Cohort of Australian Women', Maternal and Child Health Journal, 21 1175-1184 (2017) [C1]
Objective To determine rates of vaginal delivery, emergency caesarean section, and elective caesarean section for first and second births in Australia, and to identify maternal pr... [more]
Objective To determine rates of vaginal delivery, emergency caesarean section, and elective caesarean section for first and second births in Australia, and to identify maternal predictors of caesarean section. Methods Data were from the Australian Longitudinal Study on Women¿s Health. A total of 5275 women aged 18¿38 years, who had given birth to their first child between 1996 and 2012 were included; 75.0% (n = 3956) had delivered a second child. Mode of delivery for first and second singleton birth(s) was obtained from longitudinal survey data. Socio-demographic, lifestyle, anthropometric and medical history variables were tested as predictors of mode of delivery for first and second births using multinomial logistic regression. Results Caesarean sections accounted for 29.1% (n = 1535) of first births, consisting of 18.2% emergency and 10.9% elective caesareans. Mode of delivery for first and second births was consistent for 85.5% of women (n = 3383) who delivered both children either vaginally or via caesarean section. Higher maternal age and body mass index, short-stature, anxiety and having private health insurance were predictive of caesarean section for first births. Vaginal birth after caesarean section was more common in women who were older, short-statured, or had been overweight or obese for both children, compared to women who had two vaginal deliveries. Conclusions for Practice Rates of caesarean section in Australia are high. Renewed efforts are needed to reduce the number of unnecessary caesarean births, with particular caution applied to first births. Interventions could focus on elective caesareans for women with private health insurance or a history of anxiety.
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Nova |
2017 |
Powers JR, Loxton D, Anderson AE, Dobson AJ, Mishra GD, Hockey R, Brown WJ, 'Changes in smoking, drinking, overweight and physical inactivity in young Australian women 1996-2013', HEALTH PROMOTION JOURNAL OF AUSTRALIA, 28 255-259 (2017)
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2017 |
Powers JR, Loxton D, Anderson AE, Dobson AJ, Mishra GD, Hockey R, Brown WJ, 'Changes in smoking, drinking, overweight and physical inactivity in young Australian women 1996-2013 (vol 28, pg 255, 2017)', HEALTH PROMOTION JOURNAL OF AUSTRALIA, 28 266-266 (2017)
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Nova |
2017 |
Townsend N, Powers J, Loxton D, 'Bullying among 18 to 23-year-old women in 2013', Australian and New Zealand Journal of Public Health, 41 394-398 (2017) [C1]
Objective: To identify the prevalence of bullying among women aged 18¿23 in 2013, and to describe the demographic characteristics, health and risk factors of those who experienced... [more]
Objective: To identify the prevalence of bullying among women aged 18¿23 in 2013, and to describe the demographic characteristics, health and risk factors of those who experienced bullying. Methods: Cross-sectional analysis using data from the 1989¿95 cohort of the Australian Longitudinal Study on Women's Health, a nationally representative cohort (n=16,801). Results: More than one-quarter of women (28.4%) indicated they had never been bullied, 53.4% reported experiencing bullying in the past and 18.2% indicated that they were recently bullied. Women who had experienced bullying were more likely to have lower levels of education, less likely to be studying or employed, and had more difficulty managing on their income. Women who experienced bullying were more likely to use tobacco or illicit drugs, be overweight or obese and to be sedentary. Even after adjusting for these factors, women who had experienced bullying were at risk of poor physical health, psychological distress, suicidal thoughts and self-harm. Conclusions: This is the first nationally representative study to demonstrate the strong association between being a victim of bullying and health outcomes in a post-school-age population. Implications for public health: The findings highlight the need for interventions for women who have already experienced bullying and are past school age.
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Nova |
2016 |
Powers J, Duffy L, Burns L, Loxton D, 'Binge drinking and subsequent depressive symptoms in young women in Australia', Drug and Alcohol Dependence, 161 86-94 (2016) [C1]
Background: The long-term impact of binge drinking on subsequent depressive symptoms is unclear. The aims were to identify longitudinal patterns of binge drinking and whether bing... [more]
Background: The long-term impact of binge drinking on subsequent depressive symptoms is unclear. The aims were to identify longitudinal patterns of binge drinking and whether binge drinking preceded depressive symptoms in the short-term (1-6 years) and long-term (10-15 years). Methods: Longitudinal data from 1996, 2000 and 2009 mailed surveys of 8,197 women in the 1973-78 cohort of the Australian Longitudinal Study on Women's Health. Latent class analysis was used to identify binge drinking patterns and logistic regression to estimate associations with subsequent depressive symptoms. Results: Five binge drinking trajectories were identified with predicted proportions of women who were very infrequent (24%), fluctuating infrequent (17%), frequent (17%), very frequent (26%) or extremely frequent binge drinkers (16%) between 16 and 21 years. At 22-27 years, depressive symptoms were significantly higher for extremely frequent binge drinkers (31% versus 21% in the short-term; 22% versus 16%-18% in the long-term) than for less frequent bingers. Unadjusted odds of depressive symptoms were 1.70 (95%CI:1.38;2.08) times for extremely frequent binge drinkers than very infrequent bingers and were 1.30 (95%CI:1.04;1.63) after adjusting for demographics, relationships and experience of violence. At 31-36 years, the odds of depressive symptoms were 1.34 (95%CI:1.09-1.64) times for extremely frequent than very infrequent binge drinkers, but were not significant after adjusting for relationships and violence. Conclusions: Extremely frequent binge drinking (more than weekly) in late adolescence appears to elevate the risk of subsequent depressive symptoms in young women in their early twenties and thirties, emphasising the need for preventive strategies to curb binge drinking.
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Nova |
2016 |
Otterbach S, Tavener M, Forder P, Powers J, Loxton D, Byles J, 'The effect of motherhood and work on women's time pressure: A cohort analysis using the Australian Longitudinal Study on Women's Health', SCANDINAVIAN JOURNAL OF WORK ENVIRONMENT & HEALTH, 42 500-509 (2016) [C1]
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Nova |
2015 |
Powers J, Tavener M, Graves A, Loxton D, 'Loss to follow-up was used to estimate bias in a longitudinal study: A new approach', Journal of Clinical Epidemiology, (2015) [C1]
Objectives: To examine bias arising from loss to follow-up due to lack of contact. Study Design and Setting: The 1973-1978 cohort of Australian Longitudinal Study on Women's ... [more]
Objectives: To examine bias arising from loss to follow-up due to lack of contact. Study Design and Setting: The 1973-1978 cohort of Australian Longitudinal Study on Women's Health was first surveyed in 1996 and followed up in 2000, 2003, 2006, and 2009. At the 2000 survey, 9,688 women responded (responders), 2,972 could not be contacted, of whom 1,515 responded subsequently (temporary no contact) and 1,457 did not (permanent no contact). Characteristics were compared for these groups at baseline and follow-up in 2003, 2006, or 2009. Relative risk ratios were used to estimate bias. Results: No-contacts were younger, more likely to live in cities, to be less educated and stressed about money than responders. No-contacts were more likely to be in de facto relationships, separated, divorced, or widowed, to have experienced partner violence and be smokers. Compared with temporary no contact, permanent no contact were less educated, less likely to be studying or employed. Despite differences in prevalence estimates, relative odds ratios were close to one and had confidence intervals that included one, indicating little effect of bias. Conclusion: Although various characteristics were related to loss to follow-up, the relative risks estimates did not indicate serious bias due to loss to follow-up in this cohort of young women.
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Nova |
2015 |
Hure AJ, Chojenta CL, Powers JR, Byles JE, Loxton D, 'Validity and Reliability of Stillbirth Data Using Linked Self-Reported and Administrative Datasets', JOURNAL OF EPIDEMIOLOGY, 25 30-37 (2015) [C1]
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Nova |
2015 |
Powers JR, Anderson AE, Byles JE, Mishra G, Loxton DJ, 'Do women grow out of risky drinking? A prospective study of three cohorts of Australian women', Drug and Alcohol Review, (2015) [C1]
Introduction and Aims: To examine women's drinking behaviour relative to Australian guidelines and identify associated factors over the lifespan. Design and Methods: Data cam... [more]
Introduction and Aims: To examine women's drinking behaviour relative to Australian guidelines and identify associated factors over the lifespan. Design and Methods: Data came from three prospective cohorts of the Australian Longitudinal Study on Women's Health aged 18-23 (n=14247), 45-50 (n=13715) and 70-75 years (n=12432) when first surveyed in 1996. The same women were re-surveyed at roughly 3-year intervals until 2012. At each survey, four drinking behaviours were based on two guidelines: long-term drinking (no more than two standard drinks per day) and episodic drinking (no more than four standard drinks on an occasion): (i) no risk (within both guidelines); (ii) low episodic risk (less than once a month); high episodic risk (at least once a month); long-term risk (more than two drinks per day regardless of episodic drinking). Results: No risk drinking increased with age, low episodic risk drinking remained almost constant between ages 18 and 39, and high episodic risk drinking declined rapidly. Few women drank at long-term risk. Factors associated with risky drinking varied with age; however, being a past or current smoker consistently increased the risk, and risks for smokers increased with age. Risky drinking was less likely to be practised by women providing care and needing help with daily tasks, or by pregnant women and those living with children. Discussion and Conclusions: Risky drinking behaviour should be addressed in younger women and in those who smoke. Interventions to reduce risky drinking, possibly in combination with reducing smoking, could be offered through general practice centres.
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Nova |
2015 |
Loxton D, Powers J, Anderson AE, Townsend N, Harris ML, Tuckerman R, et al., 'Online and Offline Recruitment of Young Women for a Longitudinal Health Survey: Findings From the Australian Longitudinal Study on Women's Health 1989-95 Cohort', JOURNAL OF MEDICAL INTERNET RESEARCH, 17 (2015) [C1]
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Nova |
2015 |
Powers JR, Dobson AJ, Berry HL, Graves AM, Hanigan IC, Loxton D, 'Lack of association between drought and mental health in a cohort of 45-61 year old rural Australian women.', Aust N Z J Public Health, 39 518-523 (2015) [C1]
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Nova |
2014 |
Anderson AE, Hure AJ, Forder PM, Powers J, Kay-Lambkin FJ, Loxton DJ, 'Risky drinking patterns are being continued into pregnancy: a prospective cohort study.', PLoS One, 9 e86171 (2014) [C1]
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Nova |
2014 |
Mishra GD, Hockey R, Powers J, Loxton D, Tooth L, Rowlands I, et al., 'Recruitment via the internet and social networking sites: The 1989-1995 cohort of the Australian longitudinal study on women's health', Journal of Medical Internet Research, 16 (2014) [C1]
Background: Faced with the challenge of recruiting young adults for health studies, researchers have increasingly turned to the Internet and social networking sites, such as Faceb... [more]
Background: Faced with the challenge of recruiting young adults for health studies, researchers have increasingly turned to the Internet and social networking sites, such as Facebook, as part of their recruitment strategy. As yet, few large-scale studies are available that report on the characteristics and representativeness of the sample obtained from such recruitment methods.
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Nova |
2013 |
Loxton D, Powers J, Fitzgerald D, Forder P, Anderson A, Taft A, Hegarty K, 'The Community Composite Abuse Scale: Reliability and Validity of a Measure of Intimate Partner Violence in a Community Survey from the ALSWH', Journal of Women's Health, Issues & Care, 2 (2013) [C1]
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Nova |
2013 |
Powers JR, McDermott LJ, Loxton DJ, Chojenta CL, 'A Prospective Study of Prevalence and Predictors of Concurrent Alcohol and Tobacco Use During Pregnancy', MATERNAL AND CHILD HEALTH JOURNAL, 17 76-84 (2013) [C1]
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Nova |
2013 |
Anderson AE, Hure AJ, Forder P, Powers JR, Kay-Lambkin FJ, Loxton DJ, 'Predictors of antenatal alcohol use among Australian women: A prospective cohort study', BJOG: An International Journal of Obstetrics and Gynaecology, 120 1366-1374 (2013) [C1]
Objective To identify predictors of antenatal alcohol consumption among women who usually consume alcohol. Design Prospective cohort study. Setting Australian Longitudinal Study o... [more]
Objective To identify predictors of antenatal alcohol consumption among women who usually consume alcohol. Design Prospective cohort study. Setting Australian Longitudinal Study on Women's Health (ALSWH). Population or Sample A total of 1969 women sampled from the ALSWH 1973-78 cohort. Methods Women were included if they were pregnant in 2000, 2003, 2006 or 2009. The relationship between antenatal alcohol consumption and sociodemographics, reproductive health, mental health, physical health, health behaviours, alcohol guidelines and healthcare factors was investigated using a multivariate logistic regression model. Main outcome measures Alcohol use during pregnancy. Results Most (82.0%) women continued to drink alcohol during pregnancy. Women were more likely to drink alcohol during pregnancy if they had consumed alcohol on a weekly basis before pregnancy (odds ratio [OR] 1.47; 95% confidence interval [95% CI] 1.13-1.90), binge drank before pregnancy (OR 2.28; 95% CI 1.76-2.94), or if they were pregnant while alcohol guidelines recommended low alcohol versus abstinence (OR 1.60; 95% CI 1.26-2.03). Drinking during pregnancy was less likely if women had a Health Care Card (OR 0.63; 95% CI 0.45-0.88) or if they had ever had fertility problems (OR 0.64; 95% CI 0.48-0.86). Conclusions Most Australian women who drank alcohol continued to do so during pregnancy. Prepregnancy alcohol consumption was one of the main predictors of antenatal alcohol use. Alcohol guidelines, fertility problems and Health Care Card status also impacted antenatal alcohol consumption. © 2013 RCOG.
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Nova |
2013 |
Loxton D, Chojenta C, Anderson AE, Powers JR, Shakeshaft A, Burns L, 'Acquisition and Utilization of Information About Alcohol Use in Pregnancy Among Australian Pregnant Women and Service Providers', Journal of Midwifery & Women s Health, 58 523-530 (2013) [C1]
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Nova |
2013 |
Schofield MJ, Powers JR, Loxton D, 'Mortality and Disability Outcomes of Self-Reported Elder Abuse: A 12-Year Prospective Investigation', Journal of the American Geriatrics Society, 61 679-685 (2013) [C1]
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Nova |
2013 |
Powers JR, Loxton DJ, O'Mara AT, Chojenta CL, Ebert L, 'Regardless of where they give birth, women living in non-metropolitan areas are less likely to have an epidural than their metropolitan counterparts', WOMEN AND BIRTH, 26 E77-E81 (2013) [C1]
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Nova |
2013 |
Hure AJ, Powers JR, Chojenta CL, Byles JE, Loxton D, 'Poor Adherence to National and International Breastfeeding Duration Targets in an Australian Longitudinal Cohort', PLOS ONE, 8 (2013) [C1]
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Nova |
2012 |
Powers JR, Loxton DJ, Baker J, Rich JL, Dobson AJ, 'Empirical evidence suggests adverse climate events have not affected Australian women's health and well-being', Australian and New Zealand Journal of Public Health, 36 452-457 (2012) [C1]
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Nova |
2012 |
Anderson AE, Hure AJ, Powers JR, Kay-Lambkin FJ, Loxton DJ, 'Determinants of pregnant women's compliance with alcohol guidelines: A prospective cohort study', BMC Public Health, 12 1-10 (2012) [C1]
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Nova |
2012 |
Hure AJ, Powers JR, Mishra GD, Herbert DL, Byles JE, Loxton DJ, 'Miscarriage, preterm delivery, and stillbirth: Large variations in rates within a cohort of Australian women', PLOS One, 7 1-8 (2012) [C1]
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2011 |
Mackerras D, Powers JR, Boorman J, Loxton DJ, Giles GG, 'Estimating the impact of mandatory fortification of bread with iodine on pregnant and post-partum women', Journal of Epidemiology and Community Health, 65 1118-1122 (2011) [C1]
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Nova |
2011 |
Burns L, Black E, Powers JR, Loxton DJ, Elliott E, Shakeshaft A, Dunlop AJ, 'Geographic and maternal characteristics associated with alcohol use in pregnancy', Alcoholism: Clinical and Experimental Research, 35 1230-1237 (2011) [C1]
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Nova |
2010 |
Powers JR, Loxton DJ, Burns LA, Shakeshaft A, Elliott EJ, Dunlop AJ, 'Assessing pregnant women's compliance with different alcohol guidelines: An 11-year prospective study', Medical Journal of Australia, 192 690-693 (2010) [C1]
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Nova |
2010 |
Powers JR, Loxton DJ, 'The impact of attrition in an 11-Year prospective longitudinal study of younger women', Annals of Epidemiology, 20 318-321 (2010) [C1]
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Nova |
2010 |
Lucke JC, Brown W, Tooth L, Loxton DJ, Byles JE, Spallek M, et al., 'Health across generations: Findings from the Australian Longitudinal Study on Women's Health', Biological Research for Nursing, 12 162-170 (2010) [C1]
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Nova |
2009 |
Loxton DJ, Powers JR, Schofield M, Hussain R, Hosking SJ, 'Inadequate cervical cancer screening among mid-aged Australian women who have experienced partner violence', Preventive Medicine, 48 184-188 (2009) [C1]
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Nova |
2009 |
Allan RC, Sayers S, Powers JR, Singh G, 'The development and evaluation of a simple method of gestational age estimation', Journal of Paediatrics and Child Health, 45 15-19 (2009) [C1]
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Nova |
2008 |
Furuya H, Young AF, Powers JR, Byles JE, 'Alcohol consumption and physical health-related quality of life in elder women using the transformation of SF-36 to account for death', Japanese Journal of Alcohol Studies & Drug Dependence, 43 97-109 (2008) [C1]
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Nova |
2008 |
Powers JR, Young AF, 'Longitudinal analysis of alcohol consumption and health of middle-aged women in Australia', Addiction, 103 424-432 (2008) [C1]
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Nova |
2007 |
Clemens SL, Matthews SL, Young AF, Powers JR, 'Alcohol consumption of Australian women: Results from the Australian Longitudinal Study on Women's Health', Drug and Alcohol Review, 26 525-535 (2007) [C1]
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2007 |
Young AF, Powers JR, Wheway VL, 'Working with longitudinal data: Attrition and retention, data quality, measures of change and other analytical issues', International Journal of Multiple Research Approaches, 1 175-187 (2007) [C1]
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2007 |
Baines SK, Powers JR, Brown WJ, 'How does the health and well-being of young Australian vegetarian and semi-vegetarian women compare with non-vegetarians?', Public Health Nutrition, 10 436-442 (2007) [C1]
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2007 |
Helman J, Loxton DJ, Adamson LR, Graves AM, Powers JR, 'Conducting substudies in a longitudinal research project', International Journal of Multiple Research Approaches, 1 187-198 (2007) [C1]
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2006 |
Young AF, Powers JR, Bell SL, 'Attrition in longitudinal studies: who do you lose?', Australian and New Zealand Journal of Public Health, 30 353-361 (2006) [C1]
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Nova |
2006 |
Byles JE, Powers JR, Chojenta CL, Warner-Smith PA, 'Older women in Australia: ageing in urban, rural and remote environments', Australasian Journal on Ageing, 25 151-157 (2006) [C1]
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Nova |
2005 |
Powers JR, Mishra G, Young AF, 'Differences in mail and telephone responses to self-rated health: use of multiple imputation in correcting for response bias', Australian and New Zealand Journal of Public Health, 29 149-154 (2005) [C1]
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Nova |
2004 |
France CA, Lee CE, Powers JR, 'Correlates of depressive symptoms in a representative sample of young Australian women', Australian Psychologist, 39 228-237 (2004) [C1]
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2004 |
Young AF, Russell A, Powers JR, 'The sense of belonging to a neighbourhood: can it be measured and is it related to health and well being in older women?', Social Science and Medicine, 59 2627-2637 (2004) [C1]
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Nova |
2004 |
Powers JR, Goodger BG, Byles JE, 'Assessment of the abbreviated Duke Social Support Index in a cohort of older Australian women', Australasian Journal on Ageing, 23 71-76 (2004) [C1]
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2003 |
Powers JR, Young AF, Russell A, Pachana NA, 'Implications of non-response of older women to a short form of the Centre for Epidemiologic Studies Depression Scale', International Journal of Aging & Human Development, 57 37-54 (2003) [C1]
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Nova |
2003 |
Powers JR, Young AF, 'Beware mixing mail and telephone administration of surveys', Australasian Epidemiologist, 10 41-44 (2003) [C2] |
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2002 |
Patterson AJ, Young AF, Powers JR, Brown W, Byles J, 'Relationships between nutrition screening checklists and the health and well-being of older Australian women', Public Health Nutrition, 5(1) 65-71 (2002) [C1]
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2002 |
Schofield M, Reynolds R, Mishra G, Powers JR, Dobson A, 'Screening for Vulnerability to Abuse among Older Women: Women's Health Australia Study', The Journal of Applied Gerontology, 21(1) 24-39 (2002) [C1]
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2002 |
Feldman S, Byles J, Mishra GD, Powers JR, 'The health and social needs of recently widowed older women in Australia', Australasian Journal on Ageing, 21(3) 135-140 (2002) [C1]
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2002 |
Lee CE, Powers JR, 'Number of Social Roles, Health, and Well-being in Three Generations of Australian Women', International Journal of Behavioural Medicine, 9 195-215 (2002) [C1]
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2001 |
Brown P, Brown W, Powers JR, 'Time pressure, satisfaction with leisure and health among Australian women', Annals of Leisure Research, 4 1-18 (2001) [C1] |
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2000 |
McFadden M, Powers JR, Brown WJ, Walker M, 'Vehicle And Driver Attributes Affecting Distance From The Steering Wheel In Motor Vehicles', HUMAN FACTORS, 42(4) 676-682 (2000) [C1]
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2000 |
Powers JR, Ball JI, Adamson LR, Dobson A, 'EFFECTIVENESS OF THE NATIONAL DEATH INDEX FOR ESTABLISHING THE VITAL STATISTICS OF OLDER WOMEN IN THE AUSTRALIAN LONGITUDINAL STUDY ON WOMEN'S HEALTH', THE AUSTRALIAN AND NEW ZEALAND JOURNAL OF PUBLIC HEALTH, 24 526-528 (2000) [C1]
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2000 |
Patterson AJ, Brown W, Powers J, Roberts DC, 'Iron deficiency, general health and fatigue: results from the Australian Longitudinal Study on Women's Health', Quality of Life Research, 9 491-497 (2000) [C1]
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1999 |
Carapetis JR, Powers JR, Currie BJ, Sangster JF, Begg A, Fisher DA, et al., 'Outcomes of cardiac valve replacement for rheumatic heart disease in aboriginal Australians', Asia Pacific Heart Journal, 8 138-147 (1999)
Background: Few studies have looked specifically at the outcomes of cardiac valve replacement for rheumatic heart disease (RHD) in developing or indigenous populations. Aims: To d... [more]
Background: Few studies have looked specifically at the outcomes of cardiac valve replacement for rheumatic heart disease (RHD) in developing or indigenous populations. Aims: To describe outcomes of cardiac valve replacement in patients with rheumatic heart disease living in urban and rural communities in northern Australia. Methods: Retrospective chart review with some prospective follow-up of 81 consecutive patients, predominantly aboriginal, who underwent mitral and/or aortic valve replacement for RHD between 1964 and 1996. Survival analyses were performed using the Kaplan-Meier method, and multivariable analyses using the Cox Proportional Hazards model. Results: Most patients received mechanical prostheses. There was 1 (1.2) perioperative death. 27/29 late deaths were related to RHD. Actuarial probability estimates for survival at 1, 5 and 10 years were 91, 79 and 68 and for complication-free survival were 81, 52 and 44. Linearised rates (per 100 person-years) were: death, 4.82; all complications, 14.62; emboli, 3.92; bleeding, 2.68; endocarditis, 1.25; reoperation, 0.50; non-structural dysfunction, 2.10. Diminished preoperative left ventricular function was the only variable strongly associated with death (hazard ratio 3.38, 95 CI, 1.01 to 11.28), and this effect was greatest in the first 2 postoperative years. Conclusions: Survival and freedom from complications in this population are less than in similar studies from developing countries. Consideration should be given to operating before the left ventricular function diminishes substantially and to using techniques which obviate the need for anticoagulation.
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1999 |
Dobson AJ, Brown WJ, Ball JI, Powers JR, McFadden M, 'Women Drivers' Behaviour, Socio-Demographic Characteristics And Accidents', ACCIDENT ANALYSIS AND PREVENTION, 31 525-535 (1999) [C1]
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1998 |
Brown WJ, Ball K, Powers JR, 'Is life a party for young women?', ACHPER HEALTHY LIFESTYLES JOURNAL, 45(3) 21-26 (1998) [C1] |
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1997 |
Sayers S, Powers J, Humphrey M, 'Low aboriginal birth-weight - Prematurity or intrauterine growth restriction, Humphrey MD. Aust NZ J Obstet and Gynaecol 1996; 36: 126-128 (multiple letters) [1]', Australian and New Zealand Journal of Obstetrics and Gynaecology, 37 131-132 (1997)
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1997 |
Sayers S, Powers J, 'Missing values ignored [2]', Journal of Paediatrics and Child Health, 33 174 (1997)
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1997 |
Sayers S, Powers J, 'Risk factors for Aboriginal low birthweight, intrauterine growth retardation and preterm birth in the Darwin Health Region', Australian and New Zealand Journal of Public Health, 21 524-530 (1997)
Risk factors for Aboriginal low birthweight (<2500 g), preterm birth (<37 weeks' gestation) and intrauterine growth retardation (under the tenth percentile of Australia... [more]
Risk factors for Aboriginal low birthweight (<2500 g), preterm birth (<37 weeks' gestation) and intrauterine growth retardation (under the tenth percentile of Australian birthweights for gestational age) were examined in 503 live-born singletons recorded as born to an Aboriginal mother and routinely delivered at the Royal Darwin Hospital between January 1987 and March 1990. Infants born to mothers with body mass index less than 18.5 kg/m2 had five times the risk of having low birthweight and 2.5 times the risk of intrauterine growth retardation. Population-attributable risk percentages suggest that 28 per cent of low birthweight and 15 per cent of growth retardation could be attributed to maternal malnutrition. Risk percentages for maternal smoking of more than half a packet of cigarettes a day were 18 per cent for low birthweight and 10 per cent for growth retardation. For growth retardation, 18 per cent could be attributed to a maternal age under 20 years. Risk factors for preterm birth were predominantly obstctric: the population-attributable risk percentage for pregnancy-induced hypertension was 26 per cent and for other obstetric conditions was 16 per cent. For Aboriginal births in the Darwin Health Region, maternal malnutrition and smoking are key elements in the prevention of low birthweight and intrauterine growth retardation. Teenage pregnancy is an important risk for intrauterine growth retardation, and pregnancy-induced hypertension is a risk for preterm birth.
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1997 |
'Letters to the Editor', Australian and New Zealand Journal of Obstetrics and Gynaecology, 37 131-134 (1997)
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1996 |
Weeramanthri TS, Powers JR, Collier JW, 'Cardiac pathology and adult aboriginal mortality: A coronial study of sudden and external cause deaths in the top end of the Northern Territory in 1990', Pathology, 28 40-44 (1996)
A retrospective review of coronial records was performed for 179 adult decedents who came to coronial autopsy in 1990 and who had been living in the Top End of the Northern Territ... [more]
A retrospective review of coronial records was performed for 179 adult decedents who came to coronial autopsy in 1990 and who had been living in the Top End of the Northern Territory at the time of death. The directly standardized rate of autopsy-examined sudden death was 7.4 times higher for Aboriginal people than for non-Aboriginal people. Coronary atherosclerosis was the cause of 37% (14/38) of the Aboriginal sudden deaths and 52% (16/31) of the non-Aboriginal sudden deaths. Evidence of coronary atherosclerosis rose with age and was seen more frequently in those dying suddenly compared to those dying of external causes. When directly standardized, the rate of autopsy-examined sudden death attributable to ischemic heart disease was 5.5 times higher for Aboriginal people than for non-Aboriginal people. Contrary to a previously published statement, there is considerable overlap between Aboriginal and non-Aboriginal heart weights, with 75% (55/73) of Aboriginal decedents and 84% (89/106) of non-Aboriginal decedents having heart weights between 250 and 500 g. We concluded that the rate of autopsy-examined sudden death from all causes, and specifically from ischemic heart disease, was much higher in Aboriginal people. However in a case of sudden death a presumptive clinical diagnosis of ischemic heart disease prior to autopsy is not justified in either Aboriginal or non-Aboriginal people, due to the high prevalence of other fatal conditions. The diagnosis of pathologically increased heart weight, which is critical in the assessment of sudden death, should be made on the same basis in both Aboriginal and non-Aboriginal people.
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1996 |
Lee AJ, Bonson APV, Powers JR, 'The effect of retail store managers on Aboriginal diet in remote communities', Australian and New Zealand Journal of Public Health, 20 212-214 (1996)
Key nutrient densities of the diet of two remote northern coastal Aboriginal communities were measured using the store-turnover method during the periods that three store managers... [more]
Key nutrient densities of the diet of two remote northern coastal Aboriginal communities were measured using the store-turnover method during the periods that three store managers were responsible for each store respectively. Individual store managers were a greater determinant of nutrient density than the community itself. Furthermore, nutrient densities tended to be highest in both communities when their stores were administered by one particular store manager The results support the notion that store managers wield considerable power over the food supply of remote Aboriginal communities, and raise questions concerning the ability of Aboriginal community members to influence their own food supplies in retail stores. However the study also confirms that store managers can be important allies in efforts to improve Aboriginal dietary intake.
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1996 |
Powers JR, Burns CB, Currie BJ, 'An evaluation of unleaded petrol as a harm reduction strategy for petrol sniffers in an Aboriginal community', Journal of Toxicology - Clinical Toxicology, (1996)
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1995 |
SAYERS SM, POWERS JR, 'AN EVALUATION OF THREE METHODS USED TO ASSESS GESTATIONAL AGE OF ABORIGINAL NEONATES', Journal of Paediatrics and Child Health, 31 261-261 (1995)
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1994 |
Burns CB, Sriprakash KS, Powers JR, Currie BJ, 'Method for preserving erythrocytic d-aminolevulinic acid dehydratase activity that facilitates population studies on lead intoxication', Journal of Applied Toxicology, 14 365-368 (1994)
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1994 |
Burns CB, Powers JR, Currie BJ, 'Elevated Serum Creatine Kinase (CK-MM) in Petrol Sniffers Using Leaded or Unleaded Fuel', Journal of Toxicology: Clinical Toxicology, 32 527-539 (1994)
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1993 |
Powers JR, Sayers SM, 'Birth size of Australian Aboriginal babies', Medical Journal of Australia, 159 (1993)
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1992 |
SAYERS SM, POWERS JR, 'An evaluation of three methods used to assess the gestational age of Aboriginal neonates', Journal of Paediatrics and Child Health, 28 312-317 (1992)
Abstract Many Aboriginal women do not recall their last menstrual period date, so alternative methods of estimating gestational age are necessary for optimal obstetric and neonata... [more]
Abstract Many Aboriginal women do not recall their last menstrual period date, so alternative methods of estimating gestational age are necessary for optimal obstetric and neonatal care. In this retrospective review of 605 Aboriginal infants born at the Royal Darwin Hospital, the gestational age was estimated by the Dubowitz method and compared with available gestational age estimates from first fundal height and first ultrasound measurement. There was good agreement between the Dubowitz and ultrasound estimates of gestational age with best agreement occurring when ultrasound was done in the first trimester and worst agreement in the third trimester. Agreement between fundal height and Dubowitz estimates was poor but the measurement of fundal height was not standardized. When accurate last menstrual period information is absent, these findings suggest that good estimates of gestational age in Aboriginal neonates can be determined from the Dubowitz assessment at birth and from ultrasound measurements taken in the first trimester. Copyright © 1992, Wiley Blackwell. All rights reserved
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1992 |
Powers JR, Munoz E, Nienhuys TG, Mathews JD, 'Social and environmental factors in 10 aboriginal communities in the Northern Territory: relationship to hospital admissions of children', Medical Journal of Australia, (1992)
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1992 |
Powers JR, Munoz E, Mathews JD, 'Hospitalisation patterns in children from 10 aboriginal communities in the Northern Territory', Medical Journal of Australia, (1992)
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1988 |
Powers JR, Matthews JD, Riley MD, Fejo L, Munoz E, Milns NR, et al., 'Effects of the heavy usage of kava on physical health: summary of a pilot survey in an aboriginal community', Medical Journal of Australia, (1988)
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