Onset and progression of chronic disease and disability in a large cohort of older Australian women.

OBJECTIVE: To estimate the probability of onset and progression of disease and disability, length of life with or without disease and/or disability, and incidence of mortality, and to identify factors associated with transitioning to disease and/or disability over time. STUDY DESIGN: A prospective cohort study. Data were provided by 12,432 participants (born 1921-26) of the Australian Longitudinal Study of Women's Health linked with National Death Index data from 1996 (age: 70-75) to 2016 (age: 90-95). MAIN OUTCOME MEASURES: A five-state Markov model was fitted to estimate the transition probability, length of life with or without disease and/or disability, and the association between baseline characteristics and disease/disability/mortality risk. RESULTS: Over two-thirds of women had died by age 90-95, and only 3.8% of these had died with no chronic disease and disability. Those reporting chronic disease were more likely to have experienced disability (Transition Rate Ratio: 2•72, 95%CI= 2•52-2•93) than those who died without disability. At age 70-75, the expected life without chronic disease and disability was 7•68 (95%CI: 7•52-7•80) years, life with chronic disease but no disability was 4•39 (95%CI=4•23-4•49) years, and life with disability was 3.76 (95%CI=3•66-3•92) years. The factors difficulties managing on available income (HR=1•18, 95%CI=1•02-1•38), did not complete secondary school (HR=1•19, 95%CI=1•03-1•37), and overweight/obese (HR=1•36, 95%CI=1•20-1•55) were associated with an increased risk of disability. CONCLUSIONS: Our findings provide important insights on the onset and progression of disease and disability in older women, underscoring the importance of addressing mid-/early old-life risk factors, managing chronic conditions, and delaying disability onset and progression through targeted intervention programs.

Increasing Fruit and Vegetable Variety over Time Is Associated with Lower 15-Year Healthcare Costs: Results from the Australian Longitudinal Study on Women's Health.

Healthcare costs are lower for adults who consume more vegetables; however, the association between healthcare costs and fruit and vegetable varieties is unclear. Our aim was to investigate the association between (i) baseline fruit and vegetable (F&V) varieties, and (ii) changes in F&V varieties over time with 15-year healthcare costs in an Australian Longitudinal Study on Women's Health. The data for Survey 3 (n = 8833 women, aged 50-55 years) and Survey 7 (n = 6955, aged 62-67 years) of the 1946-1951 cohort were used. The F&V variety was assessed using the Fruit and Vegetable Variety (FAVVA) index calculated from the Cancer Council of Victoria's Dietary Questionnaire for Epidemiological Studies food frequency questionnaire. The baseline FAVVA and change in FAVVA were analysed as continuous predictors of Medicare claims/costs by using multiple regression analyses. Healthy weight women made, on average, 4.3 (95% confidence interval (CI) 1.7-6.8) fewer claims for every 10-point-higher FAVVA. Healthy weight women with higher fruit varieties incurred fewer charges; however, this was reversed for women overweight/obese. Across the sample, for every 10-point increase in FAVVA over time, women made 4.3 (95% CI 1.9-6.8) fewer claims and incurred $309.1 (95% CI $129.3-488.8) less in charges over 15 years. A higher F&V variety is associated with a small reduction in healthcare claims for healthy weight women only. An increasing F&V variety over time is associated with lower healthcare costs.

Consequences of gender-based violence on female high school students in eastern Ethiopia.

Gender-based violence (GBV) is a significant global public health problem and adversely impacts the physical and mental health of women. This study aimed to determine the consequences of GBV (including sexual, physical, emotional, and overall GBV) on female high school students in eastern Ethiopia. An institutional-based cross-sectional survey was conducted among 1,199 female high school students in eastern Ethiopia using a self-administered questionnaire. Descriptive statistics were calculated. Chi-square tests were used to analyse the data. This study revealed that more than half (55%) of the study participants had experienced any type of GBV during their lifetime. There were statistically significant differences between the educational status and childhood residence of participants who experienced and participants who did not experience sexual violence, physical violence, emotional violence, and any type of GBV in their lifetime (p<0.001). Students who had experienced sexual violence during their lifetime reported consequences of physical health, including swelling around genitalia (33.7%), unusual vaginal discharge (30.7%), and injury around the genitalia (23.9%). Mental health consequences included self-blame (35.7%), and anxiety (23.3%). Educational consequences included poor school performance (36.1%), absenteeism (34.6%), and dropout (28.9%). Students who had experienced any type of GBV during their lifetime reported consequences of physical violence, including poor school performance (18.7%), and withdrawal from school (9.0%). The main perpetrators of any type of GBV were reported to be family members, students, or boyfriends/husbands. GBV is a severe public health problem among female high school students. Primary and secondary prevention is vital to curb the consequences of GBV.

Gender-Based Violence Perpetration by Male High School Students in Eastern Ethiopia.

Gender-based violence (GBV) perpetration is a global public health problem due to its detrimental effect on health and education. This study aims to determine the prevalence of gender-based violence perpetration by male students in eastern Ethiopia. A cross-sectional study was conducted in eastern Ethiopia in December 2018. A total of 1064 male students were involved in the study. Data were collected using an adaptation of the WHO Multi-Country Study self-administered questionnaire on the Women Health and Life Event. Descriptive statistics were calculated using STATA version 14. The prevalence of gender-based violence committed by a male in the last 12 months was 55.83% (95% CI: 52.84-58.82%). The prevalence of emotional abuse against an intimate or non-partner was 45.86% (95% CI: 42.87-48.86%), physical abuse was 45.77% (95% CI: 42.77-48.77%), and sexual abuse was 31.11% (95% CI: 28.32-33.90%). The perpetration of multiple types of gender-based violence (emotional, physical, and sexual) was 47.15% (95% CI: 43.15-51.25%), with 17.72% (95% CI: 14.75-21.03%) reporting emotionally and physically violent acts, 14.21% (95% CI: 11.51-17.27%) reporting emotionally violent acts only, and 12.88% (95% CI: 10.29-15.82%) reporting physically violent acts only. There were statistically significant differences between the age of participants who committed acts of all forms of GBV in the "ever" timeframe and the past 12 months (p < 0.001). Effective prevention and intervention strategies should be developed at the school level to reduce gender-based violence perpetration.

Change in Diet Quality over 12 Years in the 1946-1951 Cohort of the Australian Longitudinal Study on Women's Health.

Understanding patterns of dietary change over time can provide important information regarding population nutrition behaviours. The aims were to investigate change in diet quality over 12 years in a nationally representative sample of women born in 1946-1951 and to identify characteristics of women whose diet quality changed over time. The Australian Recommended Food Score (ARFS) was measured in 2001 (n = 10,629, mean age 52.1 years) and 2013 (n = 9115; n = 8161 for both time points) for the mid-aged cohort from the Australian Longitudinal Study on Women's Health. Participants were categorised by tertiles of baseline diet quality and also classified as 'diet quality worsened' (ARFS decrease ≤ -4 points, n = 2361), 'remained stable' (-3 ≤ change in ARFS ≤ 3 points, n = 3077) or 'improved' (ARFS increase ≥ 4 points, n = 2723). On average, ARFS total and subscale scores remained relatively stable over time (mean [SD] change 0.3 [7.6] points) with some regression to the mean. Women whose diet quality worsened were more likely to be highly physically active at baseline compared with women whose diet quality improved (p < 0.001). Among women with poor diet quality initially (lowest baseline ARFS tertile, n = 2451, mean [SD] baseline ARFS 22.8 [4.5] points), almost half (47%, n = 1148) had not improved after 12 years, with women less likely to be in the healthy weight range (41% compared to 44%) and be never smokers (56% versus 62%, p < 0.05) compared with those whose diet improved. Diet quality remained relatively stable over 12 years' follow up among mid-aged women. Almost half of those with poor baseline diet quality remained poor over time, emphasizing the need to target high-risk groups for nutrition interventions.

Predictors of E-cigarette Use Among Young Australian Women.

INTRODUCTION: E-cigarette use is controversial worldwide. The majority of previous studies on e-cigarette use were not gender specific. This study aimed to identify the predictors of e-cigarette use among young Australian women. METHODS: This study used cross-sectional data from the 1989-1995 cohort of the Australian Longitudinal Study on Women's Health. In 2015, study participants (N=8,915) aged 19-26 years completed an online survey. Multivariable logistic regression was used to identify predictors of e-cigarette use. Data were analyzed in 2018. RESULTS: The prevalence of ever and past-year e-cigarette use among young Australian women was 11.1% and 6.4%, respectively. More than a quarter of past-year and ever e-cigarette users were never cigarette smokers. Use of e-cigarettes in the past year was associated with younger age (AOR per year increase=0.87, 95% CI=0.82, 0.93); financial difficulty (AOR=0.68, 95% CI=0.54, 0.87); being an ex-smoker (AOR=5.05, 95% CI=3.64, 7.01) or current cigarette smoker (AOR=10.01, 95% CI=7.77, 12.89); drinking at a level of lifetime risk of harm from alcohol-related disease or injury (AOR=1.23, 95% CI=1.01, 1.53). Ever e-cigarette use showed similar associations and was also associated with rural residence (AOR=0.74, 95% CI=0.60, 0.91) and intimate partner violence (AOR=1.44, 95% CI=1.17, 1.76). CONCLUSIONS: The high prevalence of e-cigarette use among never cigarette smokers has significant public health implications. Interventions to curb the use of e-cigarettes among young Australian women should focus on risk factors, such as early age, cigarette smoking, alcohol use, and intimate partner violence.

Effectiveness of pharmacotherapy for smoking cessation: protocol for umbrella review and quality assessment of systematic reviews.

BACKGROUND: In the long term, smoking cessation can decrease the risk of cancer, stroke, and heart attacks and improve overall survival. The aim of the proposed umbrella review is to summarize existing systematic reviews that assessed the effects of pharmacological interventions for smoking cessation and to evaluate the methodological quality of previously conducted systematic reviews. METHODS: Databases such as the Cochrane Library, PubMed, MEDLINE, EMBASE, CINAHIL PsychINFO Web of Science, Conference Papers Index, Scopus, and Google Scholar will be used to retrieve reviews. Systematic reviews which included only randomized control trials will be considered in this review. The primary outcome will be prolonged abstinence from smoking for a minimum of 6 months follow-up, and the secondary outcome will be point abstinence rate from smoking of less than 6 months follow-up but more than 7 days. Methodological quality of the included reviews will be assessed using the Assessment of Multiple Systematic Reviews 2 (AMSTAR 2) tool, which contains 16 domains. Two authors will screen the titles and abstracts of all reviews obtained by the search strategy, assess the full text of selected articles for inclusion, and extract data independently. The quality appraisal will be also assessed by two authors (AM, CC) independently, and Cohen's Kappa statistic will be used to assess inter-ratter agreement. The findings of the study will be narrated qualitatively to describe the effect of different pharmacotherapy on smoking cessation. DISCUSSION: The World Health Organization recommends treatment of tobacco dependence as one approach in its comprehensive tobacco control policy. To date, many trials and systematic reviews have been conducted to assess the effectiveness of pharmacotherapy for smoking cessation. Therefore, the findings of the umbrella review will improve clinical decision-making and be used as a baseline for future studies. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42017080906.

Understanding women who self-harm: Predictors and long-term outcomes in a longitudinal community sample.

OBJECTIVE: There is growing awareness of the range of psychosocial, lifestyle, and sociodemographic factors related to self-harm, however this research is often limited by using cross-sectional or convenience samples. And while we generally assume that young adults who self-harm experience poorer long-term outcomes, longitudinal research is needed. This paper builds on prior research using a large, representative, longitudinal sample. METHODS: 5765 Australian women completed 5 surveys (age 18-23 to 31-36). Six-month self-harm was measured by self-report. We had two aims: firstly to predict future self-harm, separately for women with and without prior self-harm. Secondly, to identify outcomes 3 and 6 years following self-harm. RESULTS: Six-month self-harm prevalence was 2.5%. Predictors among women without recent self-harm included depression, dieting behaviours, number of male sexual partners, and abuse. Among women with recent or current self-harm, predictors were number of dieting behaviours, tiredness of life, and stress. Women who self-harmed reported poorer outcomes, namely greater difficulties in relationships at 3- and 6-year follow-up. CONCLUSIONS: Longitudinal risk factors for self-harm differed depending on prior self-harm status, and included depression, dieting behaviours, tiredness of life and stress. These factors may serve as warning signs for new or continued self-harm. This study offers new insight into long-term outcomes up to six years after self-harm, particularly with relationships.

Maternal Health Factors as Risks for Postnatal Depression: A Prospective Longitudinal Study.

PURPOSE: While previous studies have identified a range of potential risk factors for postnatal depression (PND), none have examined a comprehensive set of risk factors at a population-level using data collected prospectively. The aim of this study was to explore the relationship between a range of factors and PND and to construct a model of the predictors of PND. METHODS: Data came from 5219 women who completed Survey 5 of the Australian Longitudinal Study on Women's Health in 2009 and reported giving birth to a child. RESULTS: Over 15% of women reported experiencing PND with at least one of their children. The strongest positive associations were for postnatal anxiety (OR = 13.79,95%CI = 10.48,18.13) and antenatal depression (OR = 9.23,95%CI = 6.10,13.97). Positive associations were also found for history of depression and PND, low SF-36 Mental Health Index, emotional distress during labour, and breastfeeding for less than six months. CONCLUSIONS: Results indicate that understanding a woman's mental health history plays an important role in the detection of those who are most vulnerable to PND. Treatment and management of depression and anxiety earlier in life and during pregnancy may have a positive impact on the incidence of PND.

Agreement between self-reported perinatal outcomes and administrative data in New South Wales, Australia.

BACKGROUND: Many epidemiological studies that focus on pregnancy rely on maternal self-report of perinatal outcomes. The aim of this study was to evaluate the agreement between self-reported perinatal outcomes (gestational hypertension with or without proteinuria, gestational diabetes, premature birth and low birth weight) in a longitudinal study and linked to administrative data (medical records). METHODS: Self-reported survey data from the Australian Longitudinal Study on Women's Health was linked with the New South Wales Perinatal Data Collection. Agreement between the two sources was evaluated using percentage agreement and kappa statistics. Analyses were conducted at two levels by: i) the mother and ii) each individual child. RESULTS: Women reliably self-report their perinatal outcomes (≥ 87 % agreement). Gestational hypertension with or without proteinuria had the lowest level of agreement. Mothers' reports of perinatal outcomes were more reliable when evaluated by child. Restricting the analysis to complete and consistent reporting further strengthened the reliability of the child-specific data, increasing the agreement from >92 to >95 % for all outcomes. CONCLUSIONS: The present study offers a high degree of confidence in the use of maternal self-reports of the perinatal outcomes gestational hypertension, gestational diabetes, preterm birth and low birth weight in epidemiological research, particularly when reported on a per child basis. Furthermore self-report offers a cost-effective and convenient method for gathering detailed maternal perinatal histories.

Cohort Profile Update: Australian Longitudinal Study on Women's Health.

In 1996 the Australian Longitudinal Study on Women's Health recruited a nationally representative sample of more than 40,000 women in three age cohorts, born in 1973-78, 1946-51 and 1921-26. At least six waves of 3-yearly surveys have been completed. Although the focus remains on factors affecting the health and well-being of women and their access to and use of health services across urban, rural and remote areas of Australia, the study has now been considerably expanded by linkage to other health data sets. For most women who have ever participated in the study, linked records are now available for: government-subsidized non-hospital services (e.g. all general practitioner visits); pharmaceutical prescriptions filled; national death index, including codes for multiple causes of death; aged care assessments and services; cancer registries; and, for most states and territories, hospital admissions and perinatal data. Additionally, a large cohort of women born in 1989-95 have been recruited. The data are available to approved collaborators, with more than 780 researchers using the data so far. Full details of the study materials and data access procedures are available at [http://www.alswh.org.au/].

Do women grow out of risky drinking? A prospective study of three cohorts of Australian women.

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 = 14,247), 45-50 (n = 13,715) and 70-75 years (n = 12,432) 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.

Women's perceptions of information about alcohol use during pregnancy: a qualitative study.

BACKGROUND: A number of alcohol guidelines worldwide suggest that pregnant women should abstain from alcohol. However, high prevalence rates of alcohol consumption during pregnancy still exist. It is unknown whether there are problems with the dissemination of guideline information that is potentially contributing to such consumption. This qualitative study aimed to explore women's perceptions of information they received about alcohol use during pregnancy after the introduction of abstinence guidelines. METHODS: Nineteen women from the Australian Longitudinal Study on Women's Health (ALSWH) 1973-78 cohort that reported a pregnancy in 2009 were recruited for semi-structured telephone interviews. The interviews were conducted until data saturation was reached. Interviews were transcribed, then thematically analysed. ALSWH survey data was used to augment the findings. The main outcome measure was women's perceptions of information received about alcohol use during pregnancy after the introduction of the 2009 Australian guidelines promoting abstinence during pregnancy. RESULTS: Women reported a number of problems with the information about alcohol use during pregnancy and with its dissemination. There were inconsistencies in the information about alcohol use during pregnancy and in the advice provided. Mixed messages and confusion about identifying a safe level of consumption had implications on women's decisions to drink or abstain during pregnancy. Women expressed a need for a clear, consistent message to be provided to women as early as possible. They preferred that the message come from healthcare professionals or another reputable source. CONCLUSIONS: To make an informed decision about alcohol use during pregnancy, women must first be provided with the latest evidence-based information. As this study found a number of limitations with information provision, it is suggested that a systematic approach be adopted by healthcare professionals, in line with best-practice guidelines, to ensure all women are made aware of the alcohol recommendations for pregnancy.

Mental health service use: is there a difference between rural and non-rural women in service uptake?

This study examines differences in uptake of the Medicare items rolled out in 2006 under the 'Better Access Scheme' (BAS) between rural and non-rural Australian women. It compares differences in women's uptake of the BAS services by area of residence (ARIA+) across time using the Australian Longitudinal Study of Women's Health (ALSWH) survey data linked to Medicare data. Women aged 28-33 years at the time the BAS was introduced that responded to the self-reported question on depression/anxiety and consented to linkage of their survey data with Medicare data (n=4,316). Participants were grouped by ARIA+ according to BAS use, diagnoses of anxiety/depression but no BAS use and other eligible women. Across all areas, women born 1973-1978 with a self-reported diagnosis of depression/anxiety or having treatment under the BAS had a significantly lower mean mental health score compared to other women. Significantly more women living in non-rural areas had used at least one service provided under the BAS initiative compared to women in outer regional, inner regional or remotes areas (21% versus 18% versus 13% versus 7%, respectively), and across all areas, 12% of women reported having a diagnosis of depression/anxiety but not been treated under the BAS. While there is a gradual uptake of the new BAS services, a large percentage of women who have a diagnosis of depression/anxiety have not been treated under the BAS. The data suggest that women in urban areas have been better able to take up the services compared to non-urban women.

Risky drinking patterns are being continued into pregnancy: a prospective cohort study.

BACKGROUND: Risky patterns of alcohol use prior to pregnancy increase the risk of alcohol-exposed pregnancies and subsequent adverse outcomes. It is important to understand how consumption changes once women become pregnant. OBJECTIVE: The aim of this study was to describe the characteristics of women that partake in risky drinking patterns before pregnancy and to examine how these patterns change once they become pregnant. METHODS: A sample of 1577 women from the 1973-78 cohort of the Australian Longitudinal Study on Women's Health were included if they first reported being pregnant in 2000, 2003, 2006, 2009 and reported risky drinking patterns prior to that pregnancy. Multinomial logistic regression was used to determine which risky drinking patterns were most likely to continue into pregnancy. RESULTS: When reporting risky drinking patterns prior to pregnancy only 6% of women reported weekly drinking only, whereas 46% reported binge drinking only and 48% reported both. Women in both binge categories were more likely to have experienced financial stress, not been partnered, smoked, used drugs, been nulliparous, experienced a violent relationship, and were less educated. Most women (46%) continued these risky drinking patterns into pregnancy, with 40% reducing these behaviors, and 14% completely ceasing alcohol consumption. Once pregnant, women who binged only prior to pregnancy were more likely to continue (55%) rather than reduce drinking (29%). Of the combined drinking group 61% continued to binge and 47% continued weekly drinking. Compared with the combined drinking group, binge only drinkers prior to pregnancy were less likely to reduce rather than continue their drinking once pregnant (OR = 0.37, 95% CI  =  0.29, 0.47). CONCLUSIONS: Over a third of women continued risky drinking into pregnancy, especially binge drinking, suggesting a need to address alcohol consumption prior to pregnancy.

Regardless of where they give birth, women living in non-metropolitan areas are less likely to have an epidural than their metropolitan counterparts.

QUESTION: Can differences in Australian birth intervention rates be explained by women's residence at the time of childbearing?. METHODS: Data were collected prospectively via surveys in 1996, 2000, 2003, 2006 and 2009 from women, born between 1973 and 1978, of the Australian Longitudinal Study on Women's Health. Analysis included data from 5886 women who had given birth to their first child between 1994 and 2009. Outcome measures were self-report of birth interventions: pharmacological pain relief (epidural and spinal block analgesia, inhalational analgesia and intramuscular injections), surgical births (an elective or emergency caesarean section) and instrumental births (forceps and ventouse). FINDINGS: Primiparous women residing in non-metropolitan areas of Australia experienced fewer birth interventions than women residing in metropolitan areas: 43% versus 56% received epidural analgesia; 8% versus 11% had elective caesarean sections; and 16% versus 18% had emergency caesarean sections. Differences in maternal age and private health insurance status at first birth accounted for differences in surgical birth rates but did not fully explain differences in epidural analgesia. CONCLUSION: Non-metropolitan women had fewer birth interventions, particularly epidural analgesia, than metropolitan women. Differences in maternal age and private health insurance do not fully explain the differences in epidural analgesia rates, suggesting care provided to labouring women may differ by area of residence. The difference in epidural analgesia rates may be due to lack of choice in maternity services, however it could also be due to differing expectations leading to differences in birth interventions for primiparous women living in metropolitan and non-metropolitan areas.

A prospective study of prevalence and predictors of concurrent alcohol and tobacco use during pregnancy.

Concurrent drinking and smoking during pregnancy is a major public health concern. Changes in these behaviours are under-researched, although essential if effective interventions are to be implemented. Hence this paper investigated characteristics of women who decreased concurrent drinking and smoking during pregnancy. 1,591 women were identified as pregnant at one of three surveys from 2000 to 2006 of the Australian Longitudinal Study on Women's Health and not pregnant at the previous survey. Relative risks (RRs) were calculated for concurrent drinkers and smokers before pregnancy of (1) decreasing drinking, (2) decreasing smoking and (3) decreasing drinking and smoking during pregnancy. Three hundred and fifty-four women (22%) were concurrent drinkers and smokers before pregnancy; of these women, 73% decreased drinking, 72% decreased smoking and 53% decreased drinking and smoking during pregnancy. Decreased concurrent drinking and smoking was significantly higher among women who had at least 12 years education (RRs: 1.5-1.6), who drank at least 1-2 days/week (RRs: 1.5-1.6) and who had 3 or more drinks per occasion (RRs: 1.6-1.8), and significantly lower among heavy smokers, mothers of other children (RRs: 0.8) and disadvantaged women: those stressed about money, with poor mental health, low social support and experience of partner violence (RRs: 0.6-0.7). Clearly programs are needed to tackle concurrent drinking and smoking during pregnancy. Given many pregnancies are unplanned, these programs should target drinking and smoking before and during pregnancy, as well as disadvantaged women, to reduce the deleterious effects of concurrent substance use on their babies and themselves.

Determinants of pregnant women's compliance with alcohol guidelines: a prospective cohort study.

BACKGROUND: In 2009, Australian alcohol guidelines for pregnancy changed from low to no alcohol intake. Previous research found a high proportion of pregnant Australian women drank during pregnancy; however, there has been limited investigation of whether pregnant women comply with 2009 alcohol guidelines. The purpose of this study was to provide an assessment of pregnant women's compliance with 2009 Australian alcohol guidelines and identify predictors of such compliance, including previous drinking behaviour. METHODS: Cross-sectional analysis of prospective data from the 1973-1978 cohort of the Australian Longitudinal Study on Women's Health was conducted. Women aged 30-36 years who were pregnant at the 2009 survey and had data on alcohol use were included (n = 837). Compliance with 2009 alcohol guidelines for pregnancy was defined as no alcohol intake. Predictors of compliance were analysed using multivariate logistic regression, controlling for area of residence, in three separate models to account for multicollinearity between measures of previous alcohol intake (compliance with 2001 guidelines; frequency and quantity; bingeing). Private health insurance, household income, and illicit drug use were entered into all models and retained if significant. RESULTS: 72% of pregnant women did not comply with the 2009 alcohol guidelines and 82% of these women drank less than seven drinks per week, with no more than one or two drinks per drinking day. The odds of complying with abstinence increased by a factor of 3.48 (95% CI 2.39-5.05) for women who previously complied with the 2001 alcohol guidelines and decreased by a factor of 0.19 (95% CI 0.08-0.66) if household incomes were $36,400 or more. In other models the odds of complying were lower for women who consumed alcohol before pregnancy at least weekly (OR = 0.40, 95% CI 0.25-0.63) or binged (OR ≥ 0.18, 95% CI 0.10-0.31) and were higher for those who abstained (OR = 45.09; 95% CI 8.63-235.49) prior to pregnancy. CONCLUSION: Most pregnant women did not comply with alcohol guidelines promoting abstinence. Prior alcohol behaviour was the strongest predictor of compliance during pregnancy, suggesting alcohol use should be addressed in women of child-bearing age. The study is limited by the relatively short timeframe between the official introduction of the 2009 guidelines and the date the surveys were sent out. Widespread dissemination of the guidelines may be necessary to help increase guideline compliance by pregnant women.