Associate Professor Kym Rae

Aim: The nutritional quality of foods consumed by infants and young children to complement breastfeeding or formula feeding influences growth and development. The aim of this study was to identify the dietary intake of Indigenous infants and young children in the Gomeroi gaaynggal cohort, and evaluate the nutritional adequacy of their intake compared with Australian recommendations. Methods: Dietary intake was assessed using diet recalls at approximately 9-, 12- and 24-month visits. Nutrient values of foods were obtained from AUSNUT 2011-13 and nutrient intake compared to the Australian Nutrient Reference Values. Foods were categorised into food groups and intakes compared to the Australian Guide to Healthy Eating. Results: A total of 206 infants and young children were included in the study. Of these, 95 individual children had dietary data collected between 7.6 and 24.7¿months. Infant formula and breastfeeding rates were highest among infants (70% and 20%, respectively). Cow's milk intake was highest among young children (75%). Infants and young children in the cohort met most macro- and micronutrient intake recommendations. Few young children met recommendation for iron (42%), no infant met recommendation for omega-3 fatty acids and almost all exceeded recommendation for sodium. Most young children met daily dairy and fruit recommendations although intake of discretionary foods was high. Conclusions: This study found that diets of Indigenous infants and young children met most key nutrient reference targets. Potential target areas that require dietary optimisation have been identified and will be the focus of community-led strategies in adequate infant nutrition promotion.

Objective: To determine sources of key nutrients contributing towards nutritional adequacy during pregnancy (fibre, calcium, iron, zinc and folate) in a cohort of women carrying an Indigenous child. Design: Analysis of cross-sectional data from a prospective longitudinal cohort study that followed Indigenous women through pregnancy. Setting: Women recruited via antenatal clinics in regional and remote locations in NSW, Australia as part of the Gomeroi gaaynggal project. Participants: One hundred and fifty-two pregnant Australian women who identified as Indigenous or carrying an Indigenous child. Measurements and Findings: Measurement outcomes included demographic information, smoking status, anthropometrics (weight and height,), self-reported pre-pregnancy weight, health conditions and dietary information (24-hour food recall). Findings indicate the inadequate intake of key pregnancy nutrients in this cohort. Supplements contributed to the nutrient adequacy of the cohort with 53% reporting use. As expected, predominant sources of fibre were from core food groups, whereas calcium was attained from a range of sources including food and beverages, with small amounts from supplementation. Importantly, supplements contributed significant amounts of iron, zinc and folate. Key Conclusions: There is limited literature on Indigenous Australian maternal nutrition. This study highlights the key dietary contributors of nutritional adequacy during pregnancy for the cohort and that supplementation may be considered a viable source of nutrients during pregnancy for these women. Few women met national nutrient recommendations. The findings present an opportunity to optimise nutrient intakes of Indigenous pregnant women. Implications for practice: Culturally appropriate targeted interventions to optimise dietary intakes of Indigenous Australian pregnant women is required. Collaborative support of health workers, Indigenous Australian communities, dietitians, and researchers to raise awareness of nutrition during pregnancy is imperative to achieving nutrient targets and optimising pregnancy outcomes. Targeted interventions provide positive opportunities to achieve improvements.

Objectives: To describe the current contraception usage patterns from a cohort of Australian Indigenous women, including their ideal family size and spacing between children. Design: Cross-sectional analysis of data (2012-2019). Setting: Data are from a longitudinal study, the Gomeroi gaaynggal (babies from Gomeroi lands) program, based in rural and remote Gomeroi lands in New South Wales. Participants: Women carrying an Indigenous baby who enrolled during pregnancy were eligible for the study. The mother and child are then followed for up to 10¿years. Main outcome measures: Contraception usage in the postnatal period was recorded, as well as whether they were sexually active, whether they wanted more children and their preferred spacing between children. Medical, social and demographic information was also collected. These measures were self-reported via an online tool (Survey Monkey®) at their first visit to the study following the birth of their child. Results: Ninety-nine women were included in the analysis. Most women reported that they were sexually active at the time they were questioned about their contraceptive usage. The most popular contraception choices were condoms, the oral contraceptive pill and implant rods. Those answering that they did not want more children had a median of three children already. Those who wanted more children had a median of one child. The majority of the women stated that 2-3¿years between babies was ideal. Conclusion: The sampled women had clear beliefs about their ideal family size, in which contraceptive usage played an important part.

Introduction: An optimal diet is imperative in preparing women for pregnancy and this may be influenced by socio-economic status (SES). This research aims to investigate the role of SES on the dietary energy density (ED) in Australian women of preconception age. Methods: A secondary analysis of the Australian National Nutrition and Physical Activity Survey 2011¿12 for females aged 18¿39¿years (n¿=¿1617) was conducted. Dietary intake was assessed by 24-hr recalls and dietary ED by dietary energy per weight (kJ.g-1). ED was further categorised as ED of foods and beverages separately. SES was assessed by three variables: Socio-Economic Indexes for Areas (SEIFA), developed by the Australian Bureau of Statistics; income decile; and level of education. Linear mixed model regressions were used to identify associations between ED and SES. Results: The median ED for food, beverages and combined food and beverages was 9.38¿kJ g-1, 1.02 kJ g-1 and 7.11¿kJ g-1, respectively. No significant variation was explained by SES variables when analysing combined ED in the adjusted model or ED from foods. Income decile reduced ED of beverages, although with little effect (coefficient: -0.04, P¿=¿0.002). Significant confounders included inactivity, which increased ED in both combined ED and ED foods (coefficient: 0.51, P¿=¿0.001 and coefficient: 0.78, P¿<¿0.001). Conclusions: SES explained little variation in dietary ED in women of childbearing age. A large proportion of women had high energy-dense diets regardless of their SES. These findings suggest that a large proportion of women, who may become pregnant, have diets that exceed the international recommendations for dietary energy density.

Evidence from animal models indicates that exposure to an obesogenic or hyperglycemic intrauterine environment adversely impacts offspring kidney development and renal function. However, evidence from human studies has not been evaluated systematically. Therefore, the aim of this systematic review was to synthesize current research in humans that has examined the relationship between gestational obesity and/or diabetes and offspring kidney structure and function. Systematic electronic database searches were conducted of five relevant databases (CINAHL, Cochrane, EMBASE, MEDLINE and Scopus). Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines were followed, and articles screened by two independent reviewers generated nine eligible papers for inclusion. Six studies were assessed as being of 'neutral' quality, two of 'negative' and one 'positive' quality. Observational studies suggest that offspring exposed to a hyperglycemic intrauterine environment are more likely to display markers of renal dysfunction and are at higher risk of end-stage renal disease. There was limited and inconsistent evidence for a link between exposure to an obesogenic intrauterine environment and offspring renal outcomes. Offspring renal outcome measures across studies were diverse, with a large variation in offspring age at follow-up, limiting comparability across studies. The collective current body of evidence suggests that intrauterine exposure to maternal obesity and/or diabetes adversely impacts renal programming in offspring, with an increased risk of kidney disease in adulthood. Further high-quality, longitudinal, prospective cohort studies that measure indicators of offspring renal development and function, including fetal kidney volume and albuminuria, at standardized follow-up time points, are warranted.

Objective: To synthesise primary research regarding the facilitators and barriers to smoking cessation amongst Aboriginal and/or Torres Strait Islander women during pregnancy. Design: An integrative review. Review methods: A systematic search of peer-reviewed literature from five databases published from January 2008 to April 2018. Articles were reviewed using the approach outlined by Whittemore and Knafl, with the identified themes collated and synthesised according to study characteristics and barriers and facilitators of smoking cessation. Findings: Of the 310 papers retrieved, nine studies were included within the review (five quantitative and four qualitative). The quality of the studies were ascertained via Joanna Briggs Institute checklists for cross sectional analysis, randomized controlled trials, and qualitative research. The overall quality of the research was deemed acceptable. Two facilitators to smoking cessation within the studied population were identified: ¿support to quit¿ and ¿information and advice¿ while four barriers to smoking cessation within pregnant Aboriginal and/or Torres Strait Islander women were identified: ¿smoking prevalence¿ ¿high daily stress¿ ¿ambivalence regarding adverse effects of smoking¿ and ¿attitudes, knowledge and training of the healthcare professional¿. Conclusions: Social and familial influences and daily stress have a strong impact on whether a woman feels she can quit smoking during pregnancy. However, in this study, information and advice regarding potential adverse effects of smoking on the foetus, or lack thereof, from health professionals either facilitated cessation of smoking in pregnancy or was a barrier to quitting. Likewise, a lack of awareness from midwives and doctors on smoking cessation strategies, such as nicotine replacement therapy, was a barrier for women. Implications for practice: The findings indicate that education regarding the adverse effects of smoking in pregnancy, as well as strategies on smoking cessation from midwives, doctors, and Aboriginal Health Workers within the antenatal period may have a positive effect on current smoking rates among pregnant Aboriginal and/or Torres Strait Islander women. Involving the partner/support person and family of the woman in this education may have a greater impact on smoking cessation rates through the woman gaining social and familial support in her decision to quit. Thus, healthcare workers require additional professional development to provide information and knowledge within a culturally competent manner. Successful smoking cessation programs for Aboriginal and Torres Strait Islander women during pregnancy could have measurable impacts on mortality rates for Indigenous infants and significantly contribute to ¿Closing the Gap¿.

Childhood obesity rates are higher among Indigenous compared with non-Indigenous Australian children. It has been hypothesized that early-life influences beginning with the intrauterine environment predict the development of obesity in the offspring. The aim of this paper was to assess, in 227 mother-child dyads from the Gomeroi gaaynggal cohort, associations between prematurity, Gestation Related-Optimal Weight (GROW) centiles, maternal adiposity (percentage body fat, visceral fat area), maternal non-fasting plasma glucose levels (measured at mean gestational age of 23.1 weeks) and offspring BMI and adiposity (abdominal circumference, subscapular skinfold thickness) in early childhood (mean age 23.4 months). Maternal non-fasting plasma glucose concentrations were positively associated with infant birth weight (P=0.005) and GROW customized birth weight centiles (P=0.008). There was a significant association between maternal percentage body fat (P=0.02) and visceral fat area (P=0.00) with infant body weight in early childhood. Body mass index (BMI) in early childhood was significantly higher in offspring born preterm compared with those born at term (P=0.03). GROW customized birth weight centiles was significantly associated with body weight (P=0.01), BMI (P=0.007) and abdominal circumference (P=0.039) at early childhood. Our findings suggest that being born preterm, large for gestational age or exposed to an obesogenic intrauterine environment and higher maternal non-fasting plasma glucose concentrations are associated with increased obesity risk in early childhood. Future strategies should aim to reduce the prevalence of overweight/obesity in women of child-bearing age and emphasize the importance of optimal glycemia during pregnancy, particularly in Indigenous women.

Adverse pregnancy outcomes including prematurity and low birth weight (LBW) have been associated with life-long chronic disease risk for the infant. Stress during pregnancy increases the risk of adverse pregnancy outcomes. Many studies have reported the incidence of adverse pregnancy outcomes in Indigenous populations and a smaller number of studies have measured rates of stress and depression in these populations. This study sought to examine the potential association between stress during pregnancy and the rate of adverse pregnancy outcomes in Australian Indigenous women residing in rural and remote communities in New South Wales. This study found a higher rate of post-traumatic stress disorder, depression and anxiety symptoms during pregnancy than the general population. There was also a higher incidence of prematurity and LBW deliveries. Unfortunately, missing post-traumatic stress disorder and depressive symptomatology data impeded the examination of associations of interest. This was largely due to the highly sensitive nature of the issues under investigation, and the need to ensure adequate levels of trust between Indigenous women and research staff before disclosure and recording of sensitive research data. We were unable to demonstrate a significant association between the level of stress and the incidence of adverse pregnancy outcomes at this stage. We recommend this longitudinal study continue until complete data sets are available. Future research in this area should ensure prioritization of building trust in participants and overestimating sample size to ensure no undue pressure is placed upon an already stressed participant.

Background: Little is known about the adequacy of nutrient intakes and the overall diet quality of Indigenous Australian pregnant women. The aim of this cross-sectional study was to assess nutrient sufficiency and diet quality, as measured using the Australian Recommended Food Score (ARFS), in pregnant women from the Gomeroi gaaynggal cohort (n = 58). Methods: Maternal dietary intake during pregnancy was assessed using the Australian Eating Survey Food Frequency Questionnaire, which was self-administered in the third trimester. Diet quality was determined using the ARFS. Food group servings and nutrient intakes were compared to the Australian Guide to Health Eating (AGHE) and Australian Nutrient Reference Values (NRVs). The current analysis examined the adequacy of usual intakes from food sources only, excluding supplements. Results: None of the women met all AGHE daily food group serving recommendations. The highest alignment rates were for dairy (33%), meat/alternatives (31%) and vegetables (29.3%). Almost 93% of participants exceeded the recommended intake of energy-dense, nutrient-poor foods and percentage energy from saturated fat was high (15%). Of the five key nutrients for optimal reproductive health (folate, iron, calcium, zinc and fibre), the nutrients with the highest percentage of pregnant women achieving the NRVs were zinc (77.6%) and folate (68.9%), whereas iron was the lowest. Only one person achieved all NRVs (folate, iron, calcium, zinc and fibre) important in pregnancy. The median ARFS was 28 points (maximum of 73). Conclusions: Although the small cohort limits the generalisability of the findings of the present study, the data obtained indicate that the diets of these Indigenous pregnant women are inadequate. Therefore, strategies aiming to optimise nutrient intakes of Indigenous pregnant women are needed urgently.

The intrauterine environment is critical for fetal growth and organ development. Evidence from animal models indicates that the developing kidney is vulnerable to suboptimal maternal nutrition and changes in health status. However, evidence from human studies are yet to be synthesised. Therefore, the aim of the current study was to systematically review current research on the relationship between maternal nutrition during pregnancy and offspring kidney structure and function in humans. A search of five databases identified 9501 articles, of which three experimental and seven observational studies met the inclusion criteria. Nutrients reviewed to date included vitamin A (n = 3), folate and vitamin B12 (n = 2), iron (n = 1), vitamin D (n = 1), total energy (n = 2) and protein (n = 1). Seven studies were assessed as being of ¿positive¿ and three of ¿neutral¿ quality. A variety of populations were studied, with limited studies investigating maternal nutrition during pregnancy, while measurements of offspring kidney outcomes were diverse across studies. There was a lack of consistency in the timing of follow-up for offspring kidney structure and/or function assessments, thus limiting comparability between studies. Deficiencies in maternal folate, vitamin A, and total energy during pregnancy were associated with detrimental impacts on kidney structure and function, measured by kidney volume, proteinuria, eGFRcystC and mean creatinine clearance in the offspring. Additional experimental and longitudinal prospective studies are warranted to confirm this relationship, especially in Indigenous populations where the risk of renal disease is greater.

The intrarenal renin-angiotensin system (iRAS) is implicated in the pathogenesis of hypertension, chronic kidney disease and diabetic nephropathy. Urinary angiotensinogen (uAGT) levels reflect the activity of the iRAS and are altered in women with preeclampsia. Since Indigenous Australians suffer high rates and early onset of renal disease, we hypothesised that Indigenous Australian pregnant women, like non-Indigenous women with pregnancy complications, would have altered uAGT levels. The excretion of RAS proteins was measured in non-Indigenous and Indigenous Australian women with uncomplicated or complicated pregnancies (preeclampsia, diabetes/gestational diabetes, proteinuria/albuminuria, hypertension, small/large for gestational age, preterm birth), and in non-pregnant non-Indigenous women. Non-Indigenous pregnant women with uncomplicated pregnancies, had higher uAGT/creatinine levels than non-Indigenous non-pregnant women (P < 0.01), and levels increased as pregnancy progressed (P < 0.001). In non-Indigenous pregnant women with pregnancy complications, uAGT/creatinine was suppressed in the third trimester (P < 0.01). In Indigenous pregnant women with uncomplicated pregnancies, there was no change in uAGT/creatinine with gestational age and uAGT/creatinine was lower in the 2nd and 3rd trimesters than in non-Indigenous pregnant women with uncomplicated pregnancies (P < 0.03, P < 0.007, respectively). The uAGT/creatinine ratios of Indigenous women with uncomplicated or complicated pregnancies were the same. A decrease in uAGT/creatinine with advancing gestational age was associated with increased urinary albumin/creatinine, as is seen in preeclampsia, but it was not specific for this disorder. The reduced uAGT/creatinine in Indigenous pregnant women may reflect subclinical renal dysfunction which limits the ability of the kidney to maintain sodium balance and could indicate an increased risk of pregnancy complications and/or future renal disease.

Personalised medicine is a newly emerging field with much to offer to all populations in improved clinical treatment options. Since the 1970s, clinicians and researchers have all been working towards improving the health of Indigenous Australians. However, there has been little research on the impact of genetics on Indigenous health, how genetic and environmental factors interact to contribute to poor health in Indigenous people, and how genetic factors specific to Indigenous people affect their responses to particular treatments. This short review highlights the urgent need for more genetic studies specific to Indigenous people in order to provide more appropriate care and to improve health outcomes. This paper explores why genetic work with Indigenous communities has been limited, how personalised medicine could benefit Indigenous communities, and highlights a number of specific instances in which personalised medicine has been critical for improving morbidity and mortality in other high-risk groups. In order to take the next step in advancing the health of Indigenous peoples, targeted research into the genetic factors behind chronic diseases is critically needed. This research may allow clinicians a better understanding of how genetic factors interact with environmental factors to influence an Indigenous Australian's individual risk of disease, prognosis, and response to therapies. It is hoped that this knowledge will produce clinical interventions that will help deliver clearly targeted, more appropriate care to this at-risk population.

Background: Pregnancy can be a stressful time for many women. There is ample evidence of numerous physical and mental health inequities for Indigenous Australians. For those Indigenous women who are pregnant, it is established that there is a higher incidence of poor physical perinatal outcomes when compared with non-Indigenous Australians. However, little evidence exists that examines stressful events and post-traumatic stress disorder (PTSD) symptoms in pregnant women who are members of this community. Aims: To quantify the rates of stressful events and PTSD symptoms in pregnant Indigenous women. Methods: One hundred and fifty rural and remote Indigenous women were invited to complete a survey during each trimester of their pregnancy. The survey measures were the stressful life events and the Impact of Events Scale. Results: Extremely high rates of PTSD symptoms were reported by participants. Approximately 40% of this group exhibited PTSD symptoms during their pregnancy with mean score 33.38 (SD¿=¿14.37) significantly higher than a study of European victims of crisis, including terrorism attacks (20.6, SD¿=¿18.5). Conclusions: The extreme levels of PTSD symptoms found in the women participating in this study are likely to result in negative implications for both mother and infant. An urgent response must be mounted at government, health, community development and research levels to address these findings. Immediate attention needs to focus on the development of interventions to address the¿high¿levels of PTSD symptoms that pregnant Australian Indigenous women¿experience.

Issue addressed Undergraduate dietetic students are required to demonstrate cultural awareness and culturally respectful communication to meet national competencies, but exposure to practical experiences may be limited. The Gomeroi gaaynggal ArtsHealth Centre was established in 2009 after community consultation with the Indigenous community in Tamworth, New South Wales. The Centre provides a safe and welcoming space where women can create art while discussing health issues with visiting health professionals and students. The present study aimed to evaluate the cultural experiences of student and new-graduate dietitians visiting an Aboriginal ArtsHealth centre through a quality assurance project. Methods Six student and new-graduate dietitians were invited to provide feedback on their experiences for this report. A generic inductive approach was used for qualitative data analysis. Results Key qualitative themes of 'building rapport' and 'developing cultural understanding' were identified. Four of the participants interviewed felt they gained a deeper understanding of the context around health disparity for Indigenous Australians through their experiences. Key ways to build rapport with community members were identified. Conclusions Results suggest that first-hand experiences working in an Aboriginal ArtsHealth centre are effective in building cultural competency skills for student and new-graduate dietitians. These experiences could be better supported through improved preparation for the cultural setting, and ongoing monitoring of participant experiences is recommended. So what? The authors encourage undergraduate dietetic programs and students to seek out opportunities for further development of cultural awareness through increased practical experiences working with Indigenous communities.

Indigenous Australians have high rates of chronic diseases, the causes of which are complex and include social and environmental determinants. Early experiences in utero may also predispose to later-life disease development. The Gomeroi gaaynggal study was established to explore intrauterine origins of renal disease, diabetes and growth in order to inform the development of health programmes for Indigenous Australian women and children. Pregnant women are recruited from antenatal clinics in Tamworth, Newcastle and Walgett, New South Wales, Australia, by Indigenous research assistants. Measures are collected at three time points in pregnancy and from women and their children at up to eight time points in the child's first 5 years. Measures of fetal renal development and function include ultrasound and biochemical biomarkers. Dietary intake, infant feeding and anthropometric measurements are collected. Standardized procedures and validated tools are used where available. Since 2010 the study has recruited over 230 women, and retained 66 postpartum. Recruitment is ongoing, and Gomeroi gaaynggal is currently the largest Indigenous pregnancy-through-early-childhood cohort internationally. Baseline median gestational age was 39.1 weeks (31.5-43.2, n=110), median birth weight was 3180 g (910-5430 g, n=110). Over one third (39.3%) of infants were admitted to special care or neonatal nursery. Nearly half of mothers (47.5%) reported tobacco smoking during pregnancy. Results of the study will contribute to knowledge about origins of chronic disease in Indigenous Australians and nutrition and growth of women and their offspring during pregnancy and postpartum. Study strengths include employment and capacity-building of Indigenous staff and the complementary ArtsHealth programme.

Sudden infant death syndrome (SIDS), neonatal deaths, and deaths from infection are higher among Indigenous Australians. This study aimed to determine the effects of inflammatory responses and exposure to cigarette smoke, two important factors associated with sudden death in infancy, on preterm birth, and birth weight in a cohort of Indigenous mothers. Indigenous Australian women (n = 131) were recruited as part of a longitudinal study while attending antenatal care clinics during pregnancy; blood samples were collected up to three times in pregnancy. Serum cotinine, indicating exposure to cigarette smoke, was detected in 50.4% of mothers. Compared with non-Indigenous women, the cohort had 10 times the prevalence of antibodies to Helicobacter pylori (33 vs. 3%). Levels of immunoglobulin G, antibodies to H. pylori, and C-reactive protein (CRP) were all inversely correlated with gestational age (P < 0.05). CRP levels were positively associated with maternal body mass index (BMI; ¿ = 0.449, P = 0.001). The effects of cigarette smoke (cotinine) and inflammation (CRP) were assessed in relation to risk factors for SIDS: gestational age at delivery and birth weight. Serum cotinine levels were negatively associated with birth weight (¿ = -0.37, P < 0.001), this correlation held true for both male (¿ = -0.39, P = 0.002) and female (¿ = -0.30, P = 0.017) infants. Cotinine was negatively associated with gestational age at delivery (¿ = -0.199, P = 0.023). When assessed by fetal sex, this was significant only for males (¿ = -0.327, P = 0.011). CRP was negatively associated with gestational age at delivery for female infants (¿ = -0.46, P < 0.001). In contrast, maternal BMI was significantly correlated with birth weight. These data highlight the importance of putting programs in place to reduce cigarette smoke exposure in pregnancy and to treat women with chronic infections such as H. pylori to improve pregnancy outcomes and decrease risk factors for sudden death in infancy.

Background and aims Families in rural Australia are at higher risk of preterm birth and have poorer access to health services. This paper reviews the literature on parenting premature infants and asks why so few studies examine the experiences of rurally residing parents. Methods CINAHL, Medline, Embase and the Maternity and Infant Care databases were searched and articles were analysed using qualitative content analysis. Results The literature search returned 17,237 articles, of which 23 met the inclusion criteria. One article examined experiences of rurally residing parents and no articles included Indigenous Australians. The following four themes emerged: The NICU environment, detailed parents' need to adjust to the NICU environment before they focus on their child. Connectedness, described connections parents develop to cope. Fragility refers to parents' perception of their premature infant as fragile and their fragile confidence in their parenting ability. Touch described the importance of touch and the distress caused by restriction of touch. Conclusions The evidence describing parenting a premature infant lacks accounts of different socio-economic and cultural groups, particularly rural families and Indigenous Australians. Implications for clinical practice Despite facing additional challenges accessing specialist care and local follow-up services, little is known about the experiences of rural parents.