Socioeconomic status and health in Australia

The associations between social determinants of health, mental health, substance-use and recidivism: a ten-year retrospective cohort analysis of women who completed the connections programme in Australia

BACKGROUND

Women with substance-use issues are overrepresented in prison. Research on women's recidivism often focuses on offending behaviour rather than the health and social circumstances women are experiencing when reimprisonment occurs. This study examines the relationship between social determinants of health (SDOH), mental health, substance-use and recidivism among women exiting prison with histories of substance-use.

METHODS

A retrospective cohort study of women exiting prison who completed the transitional support programme "Connections" between 2008 and 2018. Recidivism was measured up to two years post-release. Women's support needs were measured at baseline (4 weeks pre-release) and follow-up (four weeks post-release). Ongoing needs in relation to well-established SDOH were calculated if: (1) at baseline women were identified as having a re-entry need with housing, employment, finances, education, domestic violence, child-custody and social support and (2) at follow-up women reported still needing help in that area. Women's self-reported substance-use and mental health since release were captured at follow-up. Descriptive statistics were calculated for all measures. Associations between SDOH, mental health, substance-use and recidivism were estimated by multiple logistic regression, adjusting for potential confounders. We also evaluated the mediating effects of mental health on the relationship between SDOH and substance-use.

RESULTS

Substance-use was associated with increased odds of recidivism (adjusted odds ratio (AOR) 1.8, 95% confidence interval (CI) 1.1-2.9; p = 0.02). Poor mental health (AOR 2.9, 95% CI 1.9-4.6; p =  < 0.01), ongoing social support (AOR 3.0, 95% CI 1.9-5.0; p =  < 0.01), child-custody (AOR 1.9, 95% CI 1.0-3.3 p = 0.04), financial (AOR 2.0, 95% CI 1.3-3.2; p =  < 0.01) and housing (AOR 1.8, 95% CI 1.1-2.9; p = 0.02) needs were individually associated with increased odds of substance-use. Mediation analysis found mental health fully mediated the effects of ongoing housing (beta efficiency (b) = - 033, standard error (SE) 0.01; p = 0.05), financial (b = 0.15, SE 0.07; p = 0.05), child-custody (b = 0.18, SE 0.01; p = 0.05) and social support (b = 0.36, SE 0.1; p = 0.05) needs onto substance-use, and partially mediated the effects of domestic violence (b = 0.57, SE 0.23; p = 0.05) onto substance-use.

CONCLUSION

This study underscores the critical importance of addressing the interplay between SDOH, mental health, substance-use and recidivism. An approach that targets SDOH holds the potential for reducing mental distress and substance-use, and related recidivism.

Confusion among doctors regarding sports and exercise medicine as a specialty: an Australian multidisciplinary, cross-sectional survey

OBJECTIVES

This cross-sectional study aims to characterise the understanding and attitudes medical practitioners have towards sports and exercise medicine (SEM). By identifying knowledge gaps, misunderstandings and barriers to SEM referral, interventions may be suggested to improve the integration of SEM within a multidisciplinary approach to healthcare.

DESIGN

A survey was constructed with a multidisciplinary expert panel. Refinement and consensus were achieved through a modified Delphi method. Both quantitative and qualitative data were analysed and intergroup comparisons made using χ2 test of independence and post-hoc paired comparisons.

SETTING

The questionnaire was distributed across Australian public and private health sectors, in community and hospital-based settings.

PARTICIPANTS

Australian medical doctors practising in specialties likely to intersect with SEM were invited; including general practice, orthopaedics, emergency, rheumatology and anaesthetics/pain. Invitation was uncapped with no reportable response rate. A total of 120 complete responses were collected RESULTS: The minority (42.5%) of respondents understood the role and scope of sports and exercise physicians. SEM was poorly recognised and comprehended, with the most common misconception being that SEM is solely for elite athletes and performance. Few (20%) doctors were familiar with referral pathways to SEM services. Lack of awareness, clear scope and public presence were seen as major barriers. There was near unanimous (92.5%) agreement that 'exercise is medicine'. A strong majority felt SEM would be valuable to collaborate with more in their current practice (63.3%) and as a part of the Australian public health system (82.5%). There were some significant differences among subgroups, including that junior doctors were more likely to express confusion about SEM.

CONCLUSIONS

Among non-SEM doctors, there is significant lack of clarity regarding the role of SEM and its optimal integration. Interdisciplinary education and addressing misconceptions may improve the contribution of SEM to community healthcare.

Socioeconomic determinants of nutritional behaviors of households in Fars Province, Iran, 2018

Introduction

Households' dietary habits are affected by their environment and socioeconomic status (SES). This study aims to investigate eating behaviors and determine the factors affecting nutritional status in households in Fars Province in 2018.

Method

In this cross-sectional study, urban and rural households were selected using the multistage sampling method. A questionnaire was employed to interview the mother or householder to record the demographic, SES, and dietary habits of the family for major food items commonly used. A logistic regression model was used to analyze the data. The p-value less than 0.05 was considered significant.

Results

In total, 6,429 households participated in the study. The majority of households use traditional flatbread, low-fat milk, and liquid/cooking oil. Frying was the most prevalent method of cooking. Parents' level of education and SES were associated with type of consumed bread, milk and dairy, methods of food preparation, adding salt at the table, eating out, and fast-food usage. Parents' higher level of education was significantly associated with salt storage in optimal conditions and not using salt before tasting the meal.

Conclusion

Most of the households had healthy practices, especially in consumption of certain oils and methods of preparing their food as well as keeping salt in an optimal condition and using iodized salt. The most important unhealthy nutritional behavior was high consumption of fast food and outdoor food, especially in urban regions. Unhealthy dietary habits were more prevalent in households with low household and regional SES. Both households and regions with higher SES had better dietary habits.

Emergency department presentations and associated hospital admissions for low back pain in Australia

Objective

To determine factors associated with hospital admissions from ED presentations for low back pain (LBP).

Methods

This was a retrospective analysis of 147 ED centres in New South Wales (NSW), Australia, between 2005 and 2014. Data were accessed from the NSW Emergency Department Data Collection to determine patients who attended ED and whether or not they were admitted to hospital.

Results

There were 1 388 078 ED visits for LBP across 147 different ED centres between 2005 and 2014. Between 2005 and 2013, hospital admission rates from ED visits for LBP increased annually by 5.1% (95% confidence interval [CI] 3.9–6.4) from 477 per 100 000 in 2005 to 730 per 100 000 in 2013. Patients who were under injured workers' insurance (i.e. workers compensation insurance) had significantly lower odds (odds ratio [OR] 0.42, 95% CI 0.40–0.43) of being admitted to hospital for LBP compared with those not on injured workers' insurance. Patients living in the highest socioeconomic areas were also more likely to be admitted to hospital from an ED visit, compared with those from the lowest socioeconomic areas (OR 1.26, 95% CI 1.24–1.29).

Conclusion

Rates of hospitalisation following attendance to ED for LBP increased annually by 5% between 2005 and 2013. Hospital admission rates were lower among patients from the lowest socioeconomic areas or under injured workers' compensation insurance.

Patterns and Predictors of Sitting among Women from Disad-Vantaged Neighbourhoods over Time: A 5-Year Prospective Cohort Study

Background: Our aim was to describe patterns of sitting over time and determine the sociodemographic predictors of sitting over time among women living in socioeconomically disadvantaged neighbourhoods. Methods: Women age between 18 and 45 years (mean = 34.4 ±8.1, n = 4349) reported their sitting time, sociodemographic (e.g., age), and health (e.g., body mass index) three times over 5 years. Linear mixed modelling was used to determine the predictors of change in sitting over time, adjusting for covariates. Results: Mean baseline sitting time was 40.9 h/week, decreasing to 40.1 h/week over five years. Greater sitting time was reported in participants ≤25 years of age, living with obesity, living in urban areas, self-reported poor/fair health, working full-time, with higher education, never married and with no children. Annually, the average sitting time decreased by 0.4 h/week (95% CI; -0.7 to -0.05) in women working full-time but increased by 0.1 h/week (95% CI; -0.2 to 0.6) who were not working. Similarly, annual sitting time decreased by 0.6 h/week (95% CI; -0.2 to 1.3) in women with no children but increased by 0.4 h/week (95% CI; -0.2 to 0.5) and 0.9 h/week (95% CI; 0.3 to 1.3) among those with two and three/more children, respectively. Conclusion: Among disadvantaged women, those not working and with two or more children may be at particular risk for increased sitting time and warrant further attention.

Rheumatic heart disease in Indigenous young peoples

Indigenous children and young peoples live with an inequitable burden of acute rheumatic fever and rheumatic heart disease. In this Review, we focus on the epidemiological burden and lived experience of these conditions for Indigenous young peoples in Australia, New Zealand, and Canada. We outline the direct and indirect drivers of rheumatic heart disease risk and their mitigation. Specifically, we identify the opportunities and limitations of predominantly biomedical approaches to the primary, secondary, and tertiary prevention of disease among Indigenous peoples. We explain why these biomedical approaches must be coupled with decolonising approaches to address the underlying cause of disease. Initiatives underway to reduce acute rheumatic fever and rheumatic heart disease in Australia, New Zealand, and Canada are reviewed to identify how an Indigenous rights-based approach could contribute to elimination of rheumatic heart disease and global disease control goals.

People with mild PD have impaired force production in all lower limb muscle groups: A cross-sectional study

BACKGROUND

Power is reduced in people with Parkinson's disease as a consequence of bradykinesia, but it is not clear whether reduced power is also due to a deficit in force production. The aim of this study was to quantify force production in all major lower limb muscle groups in people with PD during the "on" phase after medication, compared with aged-matched neurologically normal control participants.

METHOD

Design: A cross-sectional study was undertaken.

PARTICIPANTS

Thirty ambulatory people with PD and 24 neurologically normal controls.

OUTCOME MEASURES

Isometric force production of the hip flexors and extensors, hip adductors and abductors, hip internal rotators and external rotators, knee flexors and extensors, ankle dorsiflexors and plantarflexors, ankle invertors and evertors using hand-held dynamometry.

RESULTS

There was a significant deficit in force production in participants with PD in all lower limb muscle groups tested, compared with control participants. On average, force production of participants with PD was 78% (range 67%-87%) of control participants, despite participants with PD regularly participating in exercise, being measured during their "on" phase after medication and having normal walking ability. The most severely affected muscle groups were the hip adductors (67%) and ankle plantarflexors (68%).

CONCLUSION

People with PD have a significant loss of force production in all lower limb muscle groups compared with age-matched neurologically-normal controls.

IMPLICATIONS FOR PHYSIOTHERAPY PRACTICE

Clinicians should regularly assess the strength of all lower limb muscle groups, regardless of participation in physical activity, responsiveness to levodopa medication and walking ability.

Protective Behavior in Course of the COVID-19 Outbreak-Survey Results From Germany

Objective: The COVID-19 outbreak means far-reaching changes in the organization of daily lives. Disease-related literacy and factors such as age, gender, or education play a major role in shaping individual practices of protective behavior. This paper investigates different types and frequency of practicing protective behaviors, as well as socio-demographic factors that are associated with such behavioral change.

Methods: Data stem from a cross-sectional survey in Germany. Three thousand seven hundred and sixty-five people were contacted, 3,186 participated in the survey. Information on behavior to lower the risk of becoming infected with COVID-19 was assessed by nine items (answer options yes/no). For each item, logistic regression models were used to estimate odds ratios (OR), using education, sex, and age as main predictors and adjusting for partnership status and household composition.

Results: People with lower educational level were less likely to avoid gatherings (OR = 0.63; 95%CI = 0.48–0.83), adapt their work situation (OR = 0.66; 95%CI = 0.52–0.82), reduce personal contacts and meetings (OR = 0.71; 95%CI = 0.55–0.93), or increase hand hygiene (OR = 0.53; 95%CI = 0.38–0.73). Being female was associated with higher odds of protective behavior for most outcomes. Exceptions were wearing face masks and adapting the own work situation. Associations between respondents' age and individual behavior change were inconsistent and mostly weak.

Conclusion: Disease specific knowledge is essential in order to enable people to judge information on COVID-19. Health education programs aiming at improving COVID-19 knowledge are helpful to build up appropriate practices and reduce the spread of the disease. Strategies are needed to guarantee easy access and better dissemination of high-quality news and fact-checks. Socioeconomic characteristics should be taken into account in the development of infection control measures.

The feasibility of a Pet Support Program in an Australian university setting

ISSUE ADDRESSED

Internationally, universities have recognised the benefits of Pet Support Programs (PSPs). However, existing literature has predominately focused on quantitatively measuring health outcomes associated with a PSP amongst student populations. This research aimed to explore the feasibility of a PSP within an Australian university, as there is a need to explore practical considerations involved in implementation.

METHODS

This research used a qualitative descriptive approach. Participants were recruited via purposive snowball sampling. The sample included 17 participants across eight administrative divisions within an Australian university. Semi-structured individual interviews were used to collect data. Data were analysed using thematic analysis.

RESULTS

Three main themes emerged from the data: Organisational Change, Program Management and Perceived Outcomes. Findings suggest several considerations from both an organisational and program level that need to be addressed prior to implementation, including the university's policies, the location and animal welfare. The main perceived outcomes were stress relief and social support. Ways to minimise risks to those who may have an aversion towards animals were also discussed.

CONCLUSIONS

Participants believed implementing a PSP would be feasible in the university setting, provided all aforementioned considerations were adequately addressed. Considerations identified have the potential to act as a barrier or a facilitator depending on how they are managed. SO WHAT?: Where feasible and later implemented, a PSP could provide Australian university students and staff with an alternative means of improving mental health, providing stress relief and contributing towards the Health Promoting University framework.

HealthNavigator: a mobile application for chronic disease screening and linkage to services at an urban Primary Health Network

Mobile applications (apps) are promising tools to support chronic disease screening and linkage to health services. They have the potential to increase healthcare access for vulnerable populations. The HealthNavigator app was developed to provide chronic disease risk assessments, linkage to local general practitioners (GPs) and lifestyle programs, and a personalised health report for discussion with a GP. Assessments were either self-administered or facilitated by community health workers through a Primary Health Network (PHN) initiative targeting ethnically diverse communities. In total, 1492 assessments (80.4% self-administered, 19.6% facilitated) were conducted over a 12-month period in Queensland, Australia. Of these, 26% of people screened came from postcodes representing the lowest quartile of socioeconomic disadvantage. When compared against self-administered assessments, subjects screened by the facilitated program were more likely to be born outside Australia (80.5 v. 33.2%, P<0.001), and to fall within a high risk category based on cardiovascular risk scores (19.8 v. 13.7%, P<0.01) and type 2 diabetes mellitus risk scores (58.0 v. 40.1%, P<0.001). Mobile apps embedded into PHN programs may be a useful adjunct for the implementation of community screening programs. Further research is needed to determine their effect on health service access and health outcomes.

Increasing gaps in health inequalities related to non-communicable diseases in South Australia; implications towards behavioural risk factor surveillance systems to provide evidence for action

BACKGROUND

Although Australia is a country cited as having generally low health inequalities among different socioeconomic groups, inequalities have persisted. The aim of this analysis was to highlight how inequalities have evolved over a 13 years period in South Australia (SA).

METHODS

Since 2002, over 600 interviews per month have been undertaken with SA residents through a computer assisted telephone survey method (total 77,000+). Major risk factors and chronic diseases have been analyzed providing trends by two socio-economic variables: education and a proxy of income (ability to save).

RESULTS

While income and educational gaps are reducing over time in SA, those that remain in the lower socio-economic groups have a generally higher prevalence of risk factors and chronic diseases. The health disparity gap is still relevant, although at a different extent, for all the variables considered in our study, with most appearing to be stable if not increasing over time.

CONCLUSIONS

Surveillance can be a good source of information both to show the evolution of problems and to evaluate possible future interventions. Extensive effort is still required to "close the gap" of health inequalities in SA. More precisely targeted and properly implemented interventions are needed.

Does Indigenous health research have impact? A systematic review of reviews

Background

Aboriginal and Torres Strait Islander Australians (hereafter respectfully Indigenous Australians) claim that they have been over-researched without corresponding research benefit. This claim raises two questions. The first, which has been covered to some extent in the literature, is about what type(s) of research are likely to achieve benefits for Indigenous people. The second is how researchers report the impact of their research for Indigenous people. This systematic review of Indigenous health reviews addresses the second enquiry.

Methods

Fourteen electronic databases were systematically searched for Indigenous health reviews which met eligibility criteria. Two reviewers assessed their characteristics and methodological rigour using an a priori protocol. Three research hypotheses were stated and tested: (1) reviews address Indigenous health priority needs; (2) reviews adopt best practice guidelines on research conduct and reporting in respect to methodological transparency and rigour, as well as acceptability and appropriateness of research implementation to Indigenous people; and (3) reviews explicitly report the incremental impacts of the included studies and translation of research. We argue that if review authors explicitly address each of these three hypotheses, then the impact of research for Indigenous peoples’ health would be explicated.

Results

Seventy-six reviews were included; comprising 55 journal articles and 21 Australian Government commissioned evidence review reports. While reviews are gaining prominence and recognition in Indigenous health research and increasing in number, breadth and complexity, there is little reporting of the impact of health research for Indigenous people. This finding raises questions about the relevance of these reviews for Indigenous people, their impact on policy and practice and how reviews have been commissioned, reported and evaluated.

Conclusions

The findings of our study serve two main purposes. First, we have identified knowledge and methodological gaps in documenting Indigenous health research impact that can be addressed by researchers and policy makers. Second, the findings provide the justification for developing a framework allowing researchers and funding bodies to structure future Indigenous health research to improve the reporting and assessment of impact over time.

Electronic supplementary material

The online version of this article (doi:10.1186/s12939-017-0548-4) contains supplementary material, which is available to authorized users.

What influences urban Indian secondary school students' food consumption? - A qualitative study

Indian adolescents' over reliance on foods such as nutrient-poor snacks, sugar-sweetened beverages and take-away foods puts them at significant risk of obesity and several diet-related chronic diseases. Therefore, the factors that influence their dietary behaviours need to be better understood in order to develop effective nutrition promotion strategies. The purpose of this qualitative inquiry was to investigate adolescents', parents', teachers', and school principals' perceptions of the main influences on adolescent eating behaviours. Fifteen adolescents aged 14-15 years, 15 parents, 12 teachers and 10 principals from 10 private English-speaking schools in Kolkata, India, participated in semi-structured interviews. The digitally-recorded conversations were transcribed verbatim and analysed thematically. The 52 interviews revealed a number of factors that may influence adolescents' eating habits including parent and peer influences, home and school food environments, and the mass media. Emerging evidence suggests that future health and nutrition promotion interventions need to target the different influences on Indian teenagers' food consumption.

Painting a picture of trans-Tasman mortality

OBJECTIVES

The determinants of health and mortality inequalities in New Zealand and Australia have been subjected to research, with the influence of a range of socio-economic and demographic influences (deprivation, social class, ethnicity) receiving notable attention. Both countries are considered privileged, positioned amongst the world leaders in rankings of mortality and life expectancy. This paper reports on observed rates of mortality and views how the countries have fared over time with respect to one another.

STUDY DESIGN, OBSERVATIONAL, METHODS

This study derives comparable rates of mortality for both New Zealand and Australia, disaggregated by age and sex for the time period 1948-2008. The age-standardised rates are visualised using the Lexis mapping software program, showing the relative differences between the countries over time whilst simultaneously highlighting age, period and cohort effects.

RESULTS

Relative to Australia, New Zealand had advantageous rates of mortality across almost all age groups between the years 1948 and 1980 (approximately). For both sexes, a dramatic reversal of fortunes in New Zealand has followed relative to Australia. For example, for younger males in New Zealand, the reversal is startling. Over the time period observed, males aged 10-20 years in New Zealand have moved from an advantageous position of having a mortality rate 20% lower than Australia to a relative position of 50% higher.

CONCLUSIONS

The social and economic forces in both New Zealand and Australia which may have driven the divergence require further scrutiny. It is argued here, that the changing fortunes of the populations are linked to the process of selective migration and the large-scale population movements between the countries facilitated by the Trans-Tasman Travel Arrangement. These findings have important implications for policy formation and service planning, if the inequality in mortality between the areas of study is to be addressed.

Analysing risk factors for poorer breast cancer outcomes in residents of lower socioeconomic areas of Australia

OBJECTIVE

To investigate patient, cancer and treatment factors associated with the residence of female breast cancer patients in lower socioeconomic areas of Australia to better understand factors that may contribute to their poorer cancer outcomes.

METHODS

Bivariable and multivariable analyses were performed using the Breast Quality Audit database of Breast Surgeons of Australia and New Zealand. RESULTS Multivariable regression indicated that patients from lower socioeconomic areas are more likely to live in more remote areas and to be treated at regional than major city centres. Although they appeared equally likely to be referred to surgeons from BreastScreen services as patients from higher socioeconomic areas, they were less likely to be referred as asymptomatic cases from other sources. In general, their cancer and treatment characteristics did not differ from those of women from higher socioeconomic areas, but ovarian ablation therapy was less common for these patients and bilateral synchronous lesions tended to be less frequent than for women from higher socioeconomic areas.

CONCLUSIONS

The results indicate that patients from lower socioeconomic areas are more likely to live in more remote districts and have their treatment in regional rather than major treatment centres. Their cancer and treatment characteristics appear to be similar to those of women from higher socioeconomic areas, although they are less likely to have ovarian ablation or to be referred as asymptomatic patients from sources other than BreastScreen. What is known about this topic? It is already known from Australian data that breast cancer outcomes are not as favourable for women from areas of socioeconomic disadvantage. The reasons for the poorer outcomes have not been understood. Studies in other countries have also found poorer outcomes in women from lower socioeconomic areas, and in some instances, have attributed this finding to more advanced stages of cancers at diagnosis and more limited treatment. The reasons are likely to vary with the country and health system characteristics. What does this paper add? The present study found that in Australia, women from lower socioeconomic areas do not have more advanced cancers at diagnosis, nor, in general, other cancer features that would predispose them to poorer outcomes. The standout differences were that they tended more to live in areas that were more remote from specialist metropolitan centres and were more likely to be treated in regional settings where prior research has indicated poorer outcomes. The reasons for these poorer outcomes are not known but may include lower levels of surgical specialisation, less access to specialised adjunctive services, and less involvement with multidisciplinary teams. Women from lower socioeconomic areas also appeared more likely to attend lower case load surgeons. Little difference was evident in the type of clinical care received, although women from lower socioeconomic areas were less likely to be asymptomatic referrals from other clinical settings (excluding BreastScreen). What are the implications for practitioners? Results suggest that poorer outcomes in women from lower socioeconomic areas in Australia may have less to do with the characteristics of their breast cancers or treatment modalities and more to do with health system features, such as access to specialist centres. This study highlights the importance of demographic and health system features as potentially key factors in service outcomes. Health system research should be strengthened in Australia to augment biomedical and clinical research, with a view to best meeting service needs of all sectors of the population.

Effect of ambient temperature on Australian northern territory public hospital admissions for cardiovascular disease among indigenous and non-indigenous populations

Hospitalisations are associated with ambient temperature, but little is known about responses in population sub-groups. In this study, heat responses for Indigenous and non-Indigenous people in two age groups were examined for two categories of cardiac diseases using daily hospital admissions from five Northern Territory hospitals (1992-2011). Admission rates during the hottest five per cent of days and the coolest five per cent of days were compared with rates at other times. Among 25-64 year olds, the Indigenous female population was more adversely affected by very hot days than the non-Indigenous female population, with admission rates for ischaemic heart disease (IHD) increasing by 32%. People older than 65 were more sensitive to cold, with non-Indigenous male admissions for heart failure increasing by 64%, and for IHD by 29%. For older Indigenous males, IHD admissions increased by 52% during cold conditions. For older non-Indigenous females, increases in admissions for heart failure were around 50% on these cold days, and 64% for older Indigenous females. We conclude that under projected climate change conditions, admissions for IHD amongst younger Indigenous people would increase in hot conditions, while admissions among elderly people during cold weather may be reduced. The responses to temperature, while showing significant relationships across the Northern Territory, may vary by region. These variations were not explored in this assessment.

Analysis of national data shows mixed evidence of hardening among Australian smokers

OBJECTIVE

According to the 'hardening hypothesis', the proportion of smokers that are 'low-probability quitters' will increase as societal disapproval of smoking increases. This paper examines whether there has been increased hardening in Australian smokers over the past decade as reflected in an increased prevalence of psychological distress and social disadvantage among current smokers.

METHODS

The relationship between psychological distress, living in a disadvantaged area and level of education was determined using logistic regression at two time points 7 to 10 years apart in three cross-sectional household survey series: National Drug Strategy Household Survey (NDSHS), National Health Survey (NHS) and National Survey of Mental Health and Well-being (NSMHW).

RESULTS

The relationships between smoking and living in the most disadvantaged areas and having completed less than 12 years of schooling strengthened between 2001 and 2010 in the NDSHS, but there were no significant changes between survey years in the NHS and NSMHW. There was no significant change in the relationship between smoking and psychological distress between survey years in any of the survey series.

CONCLUSION

Social disadvantage may be increasing among current smokers, but the results were inconsistent between survey series, presenting weak evidence that the population of Australian smokers hardened as smoking prevalence declined by approximately 4% over the last decade.

IMPLICATIONS

A greater focus on intensive individual-level tobacco cessation interventions does not appear warranted at this time.

Money as motivation to quit: a survey of a non-random Australian sample of socially disadvantaged smokers' views of the acceptability of cash incentives

OBJECTIVE

This study aimed to a) assess acceptability of personal financial incentives to socially disadvantaged smokers and non-smokers; b) examine factors associated with acceptability; and c) examine preferred levels of incentive amounts.

METHODS

A cross-sectional touch screen computer survey was conducted between February and October 2010 in New South Wales, Australia. Participants were clients experiencing financial or social hardship and receiving emergency welfare aid from a non-government social and community service organisation.

RESULTS

Of 383 participants (69% response rate), 46% believed personal financial incentives were an excellent/good idea, 47% believed personal financial incentives did more good than harm and 61% agreed they would motivate smokers to quit. High acceptability ratings were associated with participants being female, current smokers, living in low socioeconomic areas, experiencing smoking-induced deprivation, making a previous quit attempt and intending to quit in the next 6 months. When asked what amount of incentive they felt would be acceptable, 23% selected amounts between $50 and $500 AUD and 37% selected amounts over $500 AUD.

CONCLUSIONS

Given high smoking prevalence among socially disadvantaged groups and consequent health disparities, it is imperative novel methods of encouraging smoking cessation are explored and tested. This survey found financial incentives may be an acceptable method. Further research to understand all possible positive and negative effects is warranted.

Area-level socioeconomic status and incidence of abnormal glucose metabolism: the Australian Diabetes, Obesity and Lifestyle (AusDiab) study

OBJECTIVE

To examine the role of area-level socioeconomic status (SES) on the development of abnormal glucose metabolism (AGM) using national, population-based data.

RESEARCH DESIGN AND METHODS

The Australian Diabetes, Obesity and Lifestyle (AusDiab) study is a national, population-based, longitudinal study of adults aged ≥25 years. A sample of 4,572 people provided complete baseline (1999 to 2000) and 5-year follow-up (2004 to 2005) data relevant for these analyses. Incident AGM was assessed using fasting plasma glucose and 2-h plasma glucose from oral glucose tolerance tests, and demographic, socioeconomic, and behavioral data were collected by interview and questionnaire. Area SES was defined using the Index of Relative Socioeconomic Disadvantage. Generalized linear mixed models were used to examine the relationship between area SES and incident AGM, with adjustment for covariates and correction for cluster design effects.

RESULTS

Area SES predicted the development of AGM, after adjustment for age, sex, and individual SES. People living in areas with the most disadvantage were significantly more likely to develop AGM, compared with those living in the least deprived areas (odds ratio 1.53; 95% CI 1.07-2.18). Health behaviors (in particular, physical activity) and central adiposity appeared to partially mediate this relationship.

CONCLUSIONS

Our findings suggest that characteristics of the physical, social, and economic aspects of local areas influence diabetes risk. Future research should focus on identifying the aspects of local environment that are associated with diabetes risk and how they might be modified.

'I know it's wrong, but...': a qualitative investigation of low-income parents' feelings of guilt about their child-feeding practices

In the developed world, child overweight and obesity rates are highest among the disadvantaged. This has resulted in calls for more research with low socio-economic families to better understand their experiences with disadvantage and how they might lead to poorer weight outcomes. The present study, conducted in Australia, adopted a qualitative approach to investigate the factors affecting low socio-economic parents' child-feeding practices. Methods used to collect data were introspections, interviews and focus groups. In total, 37 parents of overweight or obese children aged between 5 and 9 years took part in the 6-month study. Guilt emerged as an emotion that parents regularly experienced when allowing their children to consume too much food or foods high in fat, salt and/or sugar. Parents attributed their guilt-inducing child-feeding practices to both external and internal factors. Time scarcity and cost were factors that were primarily characterized by an external locus of control. The factors characterized by an internal locus of control were fear of their children experiencing hunger, the perceived need to secure their children's affection through the provision of treat foods, perceptions of their ability to balance their children's diets across eating situations and perceived laziness. Recommendations are provided for addressing guilt-inducing child-feeding practices.

A multilevel analysis on the relationship between neighbourhood poverty and public hospital utilization: is the high Indigenous morbidity avoidable?

BACKGROUND

The estimated life expectancy at birth for Indigenous Australians is 10-11 years less than the general Australian population. The mean family income for Indigenous people is also significantly lower than for non-Indigenous people. In this paper we examine poverty or socioeconomic disadvantage as an explanation for the Indigenous health gap in hospital morbidity in Australia.

METHODS

We utilised a cross-sectional and ecological design using the Northern Territory public hospitalisation data from 1 July 2004 to 30 June 2008 and socio-economic indexes for areas (SEIFA) from the 2006 census. Multilevel logistic regression models were used to estimate odds ratios and confidence intervals. Both total and potentially avoidable hospitalisations were investigated.

RESULTS

This study indicated that lifting SEIFA scores for family income and education/occupation by two quintile categories for low socio-economic Indigenous groups was sufficient to overcome the excess hospital utilisation among the Indigenous population compared with the non-Indigenous population. The results support a reframing of the Indigenous health gap as being a consequence of poverty and not simplistically of ethnicity.

CONCLUSIONS

Socio-economic disadvantage is a likely explanation for a substantial proportion of the hospital morbidity gap between Indigenous and non-Indigenous populations. Efforts to improve Indigenous health outcomes should recognise poverty as an underlying determinant of the health gap.

Equity of access in the spatial distribution of GPs within an Australian metropolitan city

Equitable access to primary health care is a key objective for health policy makers. In Australia, poor access to primary care providers has been well documented for many rural areas, yet the distribution of general practitioners (GPs) in metropolitan regions remains relatively unknown. Traditional methods of determining geographic access to GPs are limited as they rely on simple population to provider ratios within artificial administrative borders and, among other things, fail to take into account patients that utilise close-by facilities outside of these borders. This study utilised specialised geographic information systems to examine the equity of access to GPs in an Australia capital city (Adelaide). Results showed that by Australian standards, residents of metropolitan Adelaide have low GP ratios. However, an inequitable spatial distribution of GPs within metropolitan Adelaide was found, with ~16% of residents considered to be living in areas of GP workforce shortage. Residents in the outer suburbs and those with lower social economic status appeared to be the most disadvantaged. It is recommended that future studies employ specialised GIS techniques as they provide a more accurate measurement of variations in spatial accessibility to primary care within metropolitan cities.

Fatal crash trends for Australian young drivers 1997-2007: geographic and socioeconomic differentials

BACKGROUND

Little has been published on changes in young driver fatality rates over time. This paper examines differences in Australian young driver fatality rates over the last decade, examining important risk factors including place of residence and socioeconomic status (SES).

METHODS

Young driver (17-25years) police-recorded passenger vehicle crashes were extracted from New South Wales State records from 1997-2007. Rurality of residence and SES were classified into three levels based on drivers' residential postcode: urban, regional, or rural; and high, moderate, or low SES areas. Geographic and SES disparities in trends of fatality rates were examined by the generalized linear model. Chi-square trend test was used to examine the distributions of posted speed limits, drinking driving, fatigue, seatbelt use, vehicle age, night-time driving, and the time from crash to death across rurality and socioeconomic status.

RESULTS

Young driver fatality rate significantly decreased 5% per year (p<0.05); however, stratified analyses (by rurality and by SES) showed that only the reduction among urban drivers was significant (average 5% decrease per year, p<0.01). The higher relative risk of fatality for rural versus urban drivers, and for drivers of low versus high SES remained unchanged over the last decade. High posted speed limits, fatigue, drink driving and seatbelt non-use were significantly associated with rural fatalities, whereas high posted speed limit, fatigue, and driving an older vehicle were significantly related to low SES fatality.

CONCLUSION

The constant geographic and SES disparities in young driver fatality rates highlight safety inequities for those living in rural areas and those of low SES. Better targeted interventions are needed, including attention to behavioral risk factors and vehicle age.

Social Inequality: Utilisation of general practitioner services by socio-economic disadvantage and geographic remoteness

OBJECTIVE

To examine the association between socio-economic status (SES) and GP utilisation across Statistical Local Areas (SLAs) that differed in their geographic remoteness, and to assess whether Indigenous status and GP availability modified the association.

DESIGN

Retrospective analysis of Medicare data for all unreferred GP consultations (1996/97) for 952 SLAs comprising the six Australian States. Geographic remoteness was ascertained using the Area Remoteness Index of Australia (ARIA), and SES was measured by grouping SLAs into tertiles based on their Index of Relative Socioeconomic Disadvantage score.

MAIN OUTCOME MEASURE

Age/sex standardised rates of GP utilisation for each SLA.

MAIN RESULTS

In SLAs classified as 'highly accessible', rates of GP use were 10.8% higher (95% CI 5.7-16.0) in the most socio-economically disadvantaged tertile after adjustment for Indigenous status and GP availability. A very different pattern of GP utilsation was found in 'remote/very remote' SLAs. After adjustment, rates of GP use in the most socio-economically disadvantaged tertile were 25.3% lower (95% CI 5.9-40.7) than in the most advantaged tertile.

CONCLUSIONS

People in socio-economically disadvantaged metropolitan SLAs have higher rates of GP utilisation, as would be expected due to their poorer health. This is not true for people living in disadvantaged remote/very remote SLAs: in these areas, those most in need of GP services are least likely to receive them. Australia may lay claim to having a primary health care system that provides universal coverage, but we are still some way from having a system that is economically and geographically accessible to all.

The effect of socioeconomic status on outcomes for seriously ill patients: a linked data cohort study

OBJECTIVE

To investigate the association between socioeconomic status (SES) and outcomes for seriously ill patients.

DESIGN AND SETTING

A retrospective cohort study based on data from an intensive care unit clinical database linked with data from the Western Australian hospital morbidity and mortality databases over a 16-year period (1987-2002).

MAIN OUTCOME MEASURES

In-hospital and long-term mortality.

RESULTS

Data on 15,619 seriously ill patients were analysed. The in-hospital mortality rate for all seriously ill patients was 14.8%, and the incidence of death after critical illness was 7.4 per 100 person-years (4.8 per 100 person-years after hospital discharge). Patients from the most socioeconomically disadvantaged areas were more likely to be younger, to be Indigenous, to live in a remote area, to be admitted non-electively, and to have more severe acute disease and comorbidities. SES was not significantly associated with in-hospital mortality, but long-term mortality was significantly higher in patients from the lowest SES group than in those from the highest SES group, after adjusting for age, ethnicity, comorbidities, severity of acute illness, and geographical accessibility to essential services (hazard ratio for death in lowest SES group v highest SES group was 1.21 [95% CI, 1.04-1.41]; P = 0.014). The attributable incidence of death after hospital discharge between patients from the lowest and highest SES groups was 1.0 per 100 person-years (95% CI, 0.3-1.6 per 100 person-years).

CONCLUSION

Lower SES was associated with worse long-term survival after critical illness over and above the background effects of age, acuity of acute illness, comorbidities, Indigenous status and geographical access to essential services.

Health inequities: the need for action by schools of medicine

BACKGROUND

It is well recognised that marked inequalities in mortality and morbidity exist between populations particularly those in lower socio-economic groups, including Indigenous and some ethnic minorities. Academic medicine has not yet articulated a clear stance on reducing health inequity within communities.

AIM

To develop criteria that medical schools can implement to reduce health inequity. These criteria will enable the performance of a medical school's commitment to health equity to be measured.

RESULTS AND CONCLUSION

We suggest that the contribution to lessening health inequity should be seen as an integral and important role of undergraduate medical education and the academic institutions that provide such programs. Five strategies aimed at increasing the commitment of medical and other undergraduate health students to work with disadvantaged groups to improve their health are described. They include student selection to increase representativeness of students and importantly, support for retention and academic success; undergraduate curriculum, both core and elective, to address inequality and provide skills necessary to implement change in a range of areas that impact on health; academic physicians modelling the above by actively working in and for disadvantaged groups; developing centres of excellence carrying out research in health inequity, particularly intervention rather than solely descriptive research and creating high status academic appointments in key designated positions addressing inequity. Schools of Medicine could be rated on their action on these criteria so that benchmarking across institutions could occur.

Area disadvantage, individual socio-economic position, and premature cancer mortality in Australia 1998 to 2000: a multilevel analysis

OBJECTIVE

To examine associations between area and individual socio-economic characteristics and premature cancer mortality using multilevel analysis.

METHODS

We modeled cancer mortality among 25-64-year-old men and women (n = 16,340) between 1998 and 2000 in Australia. Socio-economic characteristics of Statistical Local Areas (n = 1,317) were measured using an Index of Relative Socio-economic Disadvantage (quintiles), and individual socio-economic position was measured by occupation (professionals, white and blue collar).

RESULTS

After adjustment for within-area variation in age and occupation, the probability of premature cancer mortality was highest in the most disadvantaged areas for all-cancer mortality for men (RR 1.48 95% CI 1.35-1.63) and women (RR 1.30 95% CI 1.18-1.43) and for lung cancer mortality for men (1.91 95% CI 1.63-2.25) and women (1.51 95% CI 1.04-2.18). Men in blue collar occupations had a higher rate of cancer mortality (RR 1.57 95% CI 1.50-1.65) and lung cancer mortality (RR 2.31 95 % CI 2.09-2.56), whereas men in white collar occupations had a lower all-cancer mortality rate (RR 0.78 95% CI 0.72-0.85). Compared with professionals, women in white collar occupations had an all-cancer mortality rate that was lower (RR 0.85 95% CI 0.80-0.90). When deaths from breast cancer were excluded, women in blue collar occupations had a significantly higher all-cancer mortality rate than professionals (RR 1.12 95% CI 1.02-1.22).

CONCLUSIONS

Area disadvantage and individual socio-economic position were independently associated with premature cancer mortality, suggesting that interventions to reduce inequalities should focus on places and people.

Measuring emotional and social wellbeing in Aboriginal and Torres Strait Islander populations: an analysis of a Negative Life Events Scale

Aboriginal and Torres Strait Islander Australians experience widespread socioeconomic disadvantage and health inequality. In an attempt to make Indigenous health research more culturally-appropriate, Aboriginal and Torres Strait Islander Australians have called for more attention to the concept of emotional and social wellbeing (ESWB). Although it has been widely recognised that ESWB is of crucial importance to the health of Aboriginal and Torres Strait Islander peoples, there is little consensus on how to measure in Indigenous populations, hampering efforts to better understand and improve the psychosocial determinants of health. This paper explores the policy and political context to this situation, and suggests ways to move forward. The second part of the paper explores how scales can be evaluated in a health research setting, including assessments of endorsement, discrimination, internal and external reliability.We then evaluate the use of a measure of stressful life events, the Negative Life Events Scale (NLES), in two samples of Aboriginal people living in remote communities in the Northern Territory of Australia. We argue that the Negative Life Events Scale is a promising assessment of psychosocial wellbeing in Aboriginal and Torres Strait Islander populations. Evaluation of the scale and its performance in other samples of Aboriginal and Torres Strait Islander populations is imperative if we hope to develop better, rather than more, scales for measuring ESWB among Indigenous Australians. Only then will it be possible to establish standardized methods of measuring ESWB and develop a body of comparable literature that can guide both a better understanding of ESWB, and evaluation of interventions designed to improve the psychosocial health of Indigenous populations and decrease health inequalities.

Measuring emotional and social wellbeing in Aboriginal and Torres Strait Islander populations: an analysis of a Negative Life Events Scale

Aboriginal and Torres Strait Islander Australians experience widespread socioeconomic disadvantage and health inequality. In an attempt to make Indigenous health research more culturally-appropriate, Aboriginal and Torres Strait Islander Australians have called for more attention to the concept of emotional and social wellbeing (ESWB). Although it has been widely recognised that ESWB is of crucial importance to the health of Aboriginal and Torres Strait Islander peoples, there is little consensus on how to measure in Indigenous populations, hampering efforts to better understand and improve the psychosocial determinants of health. This paper explores the policy and political context to this situation, and suggests ways to move forward. The second part of the paper explores how scales can be evaluated in a health research setting, including assessments of endorsement, discrimination, internal and external reliability.We then evaluate the use of a measure of stressful life events, the Negative Life Events Scale (NLES), in two samples of Aboriginal people living in remote communities in the Northern Territory of Australia. We argue that the Negative Life Events Scale is a promising assessment of psychosocial wellbeing in Aboriginal and Torres Strait Islander populations. Evaluation of the scale and its performance in other samples of Aboriginal and Torres Strait Islander populations is imperative if we hope to develop better, rather than more, scales for measuring ESWB among Indigenous Australians. Only then will it be possible to establish standardized methods of measuring ESWB and develop a body of comparable literature that can guide both a better understanding of ESWB, and evaluation of interventions designed to improve the psychosocial health of Indigenous populations and decrease health inequalities.

Socio-economic differentials in the health-related quality of life of Australian children: results of a national study

OBJECTIVE

To examine differences in health-related quality of life (HRQL) of children living in different socio-economic contexts in Australia.

METHODS

Parental reports describing the HRQL and socio-economic status of a random national sample of 3,597 school-age children were obtained using the Child Health Questionnaire (CHQ) and a standardised socio-economic interview. Response rate was 70%.

RESULTS

Children in families of higher income, whose parents had more years of schooling and were employed and children who lived in two-parent, original families had significantly higher HRQL across a range of domains assessed by the CHQ.

CONCLUSION

Children from lower socio-economic backgrounds in Australia have a significantly more negative experience of health and wellness. Such differences may well increase unless deliberate political attention is given to addressing the widening differences in relative wealth in Australia.

Hospital admissions by socio-economic status: does the Inverse care law‘ apply to older Australians?

OBJECTIVE

To investigate whether the 'inverse care law' applies to New South Wales (NSW) hospital admissions--especially to older people with high socio-economic status (SES).

DESIGN

Cross-sectional study analysing inequalities in public and private hospital admission rates by SES, defined in terms of age, sex and family income/size at the small geographic area level.

SETTING

Admissions to NSW public and private hospitals in 1999-2000 (1.8 million admissions against a NSW population of 6.4 million).

METHODOLOGY

Inequalities in hospitalisation rates were expressed as rate ratios across the most and least disadvantaged 20% of the NSW population.

RESULTS

Public hospital admission rates for people aged 0-60 years were 24-35% higher for the most disadvantaged 20% of the NSW population than for the least disadvantaged 20%. For 70+ year-olds the direction of this difference was reversed--being 14% lower for the most disadvantaged 20% of the population (5% higher for public patients). For private hospitals this reversal prevailed for all age groups (23-49% lower). For all hospitals it was 16% and 27% lower for 60-69 and 70+ year-olds respectively, with higher admission rates for top SES 60+ year-olds most pronounced for renal dialysis, chemotherapy, colonoscopies and other diagnostic scopes, rehabilitation and follow-up, and cataract operations.

CONCLUSION

While the 'inverse care law' did apply to 60+ year-olds, it did not apply either to younger NSW hospital users or to public patients in public hospitals.

IMPLICATIONS

Awareness of these SES-level differentials should result in greater equality of access to hospital services, especially by older people.

Demographic factors as predictors for hospital admission in patients with chronic disease

OBJECTIVE

To identify demographic predictors of hospital admission for chronic disease.

METHODS

Hospital morbidity records were extracted from the WA Data Linkage System for the period 1994-99 for specific chronic diseases based on national priorities. Poisson regression was used to estimate the effects of Aboriginal and Torres Strait Islander (ATSI) descent, co-morbidity, geography, socio-economic status and possession of health insurance on hospital admission rates.

RESULTS

This study has identified some of the main demographic risk factors for hospitalisation in patients with chronic disease as the following: being male, of ATSI descent, living in a relatively disadvantaged Census Collection District and having multiple co-morbidities. Depending on the disease, locational disadvantage and possession of private health insurance were also risk factors.

CONCLUSIONS

The study indicates that a crucial component in keeping patients with chronic disease out of hospital is ensuring quality primary care for all members of the community, equipping patients with the necessary skills to self-manage their chronic condition. Particular attention must be given to developing programs that are accessible to the more disadvantaged members of the community.

IMPLICATIONS

Programs aimed at keeping patients with chronic disease out of hospital must be targeted at the most vulnerable groups of the population if they are to be effective.

Assessment of health, well-being and social connections: A survey of women living in Western Sydney

Strengthening the physical and social environment has been shown to support health and strengthen community action for health. In an attempt to improve the social factors that influence the health of individuals and the community, community interventions increasingly include strategies to build networks and social capital and develop resilience. This study was undertaken to identify the most appropriate strategies to strengthen friendships and the social support networks for women aged 18-39 years living in Villawood, an area of high disadvantage in South Western Sydney, Australia. Although the majority reported positively on their health, one-third reported feeling isolated, experienced low energy levels and felt unhappy and anxious over the past month. Women who described themselves as unemployed felt more isolated than women in home duties. Women who were employed or engaged in home duties had more contact with neighbours, and had more in common with their neighbours. Those who reported more contact with their neighbours perceived their mental health level as being higher. These results indicate that community development initiatives should include consultation with the community and consider the needs of socially isolated groups and those with the poorest health status.

A life-course approach to measuring socioeconomic position in population health surveillance systems

Measuring socioeconomic position (SEP) in population chronic disease and risk factor surveillance systems is essential for monitoring socioeconomic inequalities in health over time. Life-course measures are an innovative way to supplement other SEP indicators in surveillance systems. A literature review examined the indicators of early-life SEP that could potentially be used in population health surveillance systems. The criteria of validity, relevance, reliability and deconstruction were used to determine the value of potential indicators. Early-life SEP indicators used in cross-sectional and longitudinal studies included education level, income, occupation, living conditions, family structure and residential mobility. Indicators of early-life SEP should be used in routine population health surveillance to monitor trends in the health and SEP of populations over time, and to analyse long-term effects of policies on the changing health of populations. However, these indicators need to be feasible to measure retrospectively, and relevant to the historical, geographical and sociocultural context in which the surveillance system is operating.

The effects of socioeconomic status, accessibility to services and patient type on hospital use in Western Australia: a retrospective cohort study of patients with homogenous health status

Background

This study aimed to investigate groups of patients with a relatively homogenous health status to evaluate the degree to which use of the Australian hospital system is affected by socio-economic status, locational accessibility to services and patient payment classification.

Method

Records of all deaths occurring in Western Australia from 1997 to 2000 inclusive were extracted from the WA mortality register and linked to records from the hospital morbidity data system (HMDS) via the WA Data Linkage System. Adjusted incidence rate ratios of hospitalisation in the last, second and third years prior to death were modelled separately for five underlying causes of death.

Results

The independent effects of socioeconomic status on hospital utilisation differed markedly across cause of death. Locational accessibility was generally not an independent predictor of utilisation except in those dying from ischaemic heart disease and lung cancer. Private patient status did not globally affect utilisation across all causes of death, but was associated with significantly decreased utilisation three years prior to death for those who died of colorectal, lung or breast cancer, and increased utilisation in the last year of life in those who died of colorectal cancer or cerebrovascular disease.

Conclusion

It appears that the Australian hospital system may not be equitable since equal need did not equate to equal utilisation. Further it would appear that horizontal equity, as measured by equal utilisation for equal need, varies by disease. This implies that a 'one-size-fits-all' approach to further improvements in equity may be over simplistic. Thus initiatives beyond Medicare should be devised and evaluated in relation to specific areas of service provision.

Uncovering the determinants of cardiovascular disease among Indigenous people

OBJECTIVE

This paper attempts to delineate an appropriate methodology for research into cardiovascular diseases (CVD) in the context of the Australian Indigenous population.

DESIGN

Our argument proceeds in three main stages of critical analysis of the appropriate literature. First we demonstrate the extremely complex aetiology of CVD and also argue that, in any population, exposure to many of the more important risk factors at an individual or group level is generated through social and behavioural factors whose causation, persistence and reproduction are both complex and multilayered. Secondly, and having established that the aetiology and morbidity of CVD in various populations is a product of a complex and interactive hierarchy of biomedical, social and political processes, we argue that only research methodologies capable of encompassing the complete span of this hierarchy can be expected to generate results which are efficacious as a basis for intervention. Thirdly, and most importantly, we argue that in the Indigenous context a central and essential feature in the development of an appropriate methodology must be to centre Indigenous people themselves as the dominant partner in setting the research agenda and the conduct of research.

RESULTS/CONCLUSIONS

We conclude that an appropriate methodology for the elucidation of the aetiology, and sequelae of CVD in Indigenous people, would go far beyond 'black box' epidemiology, would recognise the essentially social nature of chronic disease by deploying appropriate social theory within a transdisciplinary framework and would centre Indigenous people as the dominant partner in the research process.

Independent effects of socioeconomic status and place of residence on the incidence of childhood type 1 diabetes in Western Australia

OBJECTIVE

To analyze the incidence of type 1 diabetes in 0- to 14-year olds in Western Australia, from 1985 to 2002, by region and socioeconomic status.

METHODS

Primary case ascertainment was from the prospective population-based Western Australian Diabetes Register, and secondary case ascertainment was from the Western Australian Hospital Morbidity Data System. The address at diagnosis was used to categorize cases into urban, rural and remote areas and into five socioeconomic groups using the Index of Relative Socioeconomic Disadvantage. Denominator data were obtained from the Australian Bureau of Statistics. Poisson regression was used to analyze the incidence rates by area and socioeconomic status.

RESULTS

There were a total of 1143 cases (904 urban, 190 rural and 49 remote). Case ascertainment was estimated to be 99.8% complete. The mean annual age-standardized incidence from 1985 to 2002 was 18.1 per 100,000 person years in urban (95% CI: 16.3-19.9), 14.3 per 100,000 in rural (95% CI: 11.4-7.3) and 8.0 per 100,000 in remote areas (95% CI: 5.8-10.3). The incidence was significantly higher in urban compared with rural (rate ratio 1.27, p = 0.001) and remote (rate ratio 2.28, p < 0.001) areas. The incidence increased with higher socioeconomic status. The incidence in the highest socioeconomic group was 56% greater than the lowest socioeconomic group (rate ratio 1.56, p < 0.001). These differences in incidence by socioeconomic status and region were independent of each other.

CONCLUSIONS

Higher socioeconomic status and residence in the urban area are independently associated with an increased risk of childhood type 1 diabetes in Western Australia.

Health inequalities across socio-economic groups: comparing geographic-area-based and individual-based indicators

OBJECTIVES

To compare health inequality estimates obtained with different types of indicators of socio-economic status (SES), and study whether some of these are better predictors of health status, as indicated by observed disability data, than others.

METHODS

Australian data were used to compare the use of the geographically based Socio-economic Index for Areas (SEIFA) in health inequality studies with two individual-based SES indicators able to account for family income and size. Inequalities in disability prevalences by SES were measured using age-standardized rate ratios. Logistic regression was used to determine which type of SES measure is a better predictor of the observed disability prevalences.

RESULTS

Estimates of health inequalities obtained with the SEIFA were considerably lower than those obtained with the individual-based SES indicators. With the SEIFA, the proportion of disabled people amongst the most disadvantaged 20% of Australians was estimated to be 82% higher than amongst the most advantaged 20%, compared with over 150% with the individual-based SES measures. Also, the individual-based indicators were considerably better predictors of observed disability status than the SEIFA.

CONCLUSION

An individual-level SES indicator, such as one based on family income, is a better predictor of people with a disability than a geographic-area-based index. Also, the main reason for the considerably lower inequality estimates obtained with the SEIFA is that, unlike the individual-based indicators, such location-based indices cannot account for the significant, often age-related variations in SES that exist amongst people living in a particular area.

Why do women of low socioeconomic status have poorer dietary behaviours than women of higher socioeconomic status? A qualitative exploration

In developed countries, persons of low socioeconomic status (SES) are generally less likely to consume diets consistent with dietary guidelines. Little is known about the mechanisms that underlie SES differences in eating behaviours. Since women are often responsible for dietary choices within households, this qualitative study investigated factors that may contribute to socioeconomic inequalities in dietary behaviour among women. Semi-structured interviews were conducted with 19 high-, 19 mid- and 18 low- SES women, recruited from Melbourne, Australia, using an area-level indicator of SES. An ecological framework, in which individual, social and environmental level influences on diet were considered, was used to guide the development of interview questions and interpretation of the data. Thematic analysis was undertaken to identify the main themes emerging from the data. Several key influences varied by SES. These included food-related values such as health consciousness, and a lack of time due to family commitments (more salient among higher SES women), as well as perceived high cost of healthy eating and lack of time due to work commitments (more important for low SES women). Reported availability of and access to good quality healthy foods did not differ strikingly across SES groups. Public health strategies aimed at reducing SES inequalities in diet might focus on promoting healthy diets that are low cost, as well as promoting time-efficient food preparation strategies for all women.

The use of end-quintile comparisons to identify under-servicing of the poor and over-servicing of the rich: a longitudinal study describing the effect of socioeconomic status on healthcare

BACKGROUND

To demonstrate the use of end-quintile comparisons in assessing the effect of socio-economic status on hospital utilisation and outcomes in Western Australia.

METHODS

Hospital morbidity records were extracted from the WA Data Linkage System for the period 1994-99, with follow-up to the end of 2000. Multivariate modelling was used to estimate the effect of socio-economic status on hospital admission rates, average and total length of stay (LOS), cumulative incidence of readmission at 30 days and one year, and case fatality at one year.

RESULTS

The study demonstrated higher rate ratios of hospital admission in the more disadvantaged quintiles: rate ratios were 1.31 (95% CI 1.25-1.37) and 1.32 (1.26-1.38) in the first quintile (most disadvantaged) and the second quintile respectively, compared with the fifth quintile (most advantaged). There was a longer total LOS in the most disadvantaged quintile compared with quintile 5 (LOS ratio 1.24; 1.23-1.26). The risk of readmission at 30 days and one year and the risk of death at one year were also greater in those with greater disadvantage: the hazard ratios for quintiles 1:quintile 5 were 1.07 (1.05-1.09), 1.17 (1.16-1.18) and 1.10 (1.07-1.13) respectively. In contradiction to the trends towards higher hospital utilisation and poorer outcomes with increasing social disadvantage, in some MDC's the rate ratio of quintile 1:quintile 2 was less than 1, and quintile 4:quintile 5 was greater than 1. For all surgical admissions the most disadvantaged had a significantly lower admission rate than the second quintile.

CONCLUSION

This study has shown that the disadvantaged within Western Australia are more intensive users of hospital services but their outcomes following hospitalisation are worse, consistent with their health status. Instances of overuse in the least disadvantaged and under use in the most disadvantaged have also been identified.

Social inequality in patients??? physical and psychological state and participation in rehabilitation after myocardial infarction in Germany

Several Anglo-American studies found that vertical social characteristics made a difference in the utilization of cardiac rehabilitation programmes. A social gradient was also demonstrated for prevalence of risk factors, psychological strain and psychosocial resources. This study investigated social differences for these factors in a group of 536 patients who had suffered from a myocardial infarction. In contrast to findings in other industrialized countries, German patients of higher status groups made less use of cardiac rehabilitative services than patients with a lower and middle class status. However, similar to Anglo-American findings, patients with a lower socio-economic status were more likely to be smokers and more likely to be obese than other patients. Also they had higher levels of comorbidity and depression and lower self-efficacy expectations. Thus while there were no social disadvantages in terms of participation in cardiac rehabilitation programmes, which seems to be largely due to the specific characteristics of the German health care system, patients of lower socio-economic status seem to have worse baseline conditions and as a result of this a specific need for rehabilitative support.

Developing primary health clinical teams for public oral health services in Tasmania

This paper reviews the problem of socio-economic health inequalities and highlights the relevance of these issues for the delivery of public oral health services in the Australian island State of Tasmania. It contends that unless there is reform of existing public oral health systems, inequities in oral health care linked to socio-economic factors and geographic location will remain. The challenge is, firstly, to understand the current situation and why it has occurred. Secondly, we need to ensure that this understanding is shared across educational and professional sectors for the development of innovative approaches to the problem. Thirdly, we must carry out preliminary research and evaluation for any reforms. Using a combination of approaches, i.e., primary health care, a 'common risk' approach and increasing workforce numbers has been identified as a method showing the most potential to improve access to equitable oral health care. An outline of a current research project evaluating the impact of the integration of primary oral health care clinical teams into public oral health services is provided. The clinical teams combine the skills of the dentist and an expanded role for dual trained dental therapists/dental hygienists. The teams focus on the development of innovative clinical practice in the management and prevention of common oral diseases that take into account the broader determinants of oral health inequality. This project will be conducted in Tasmania, where the dominance of small rural and remote communities, adverse socio-economic factors and shortage of oral health professionals are key issues to consider in planning public oral health services and programmes. The results of the evaluation of the Tasmanian pilot model will contribute to the evidence base that will support the introduction of new approaches to public oral health care.

Children of prisoners: a growing public health problem

OBJECTIVES

To estimate the number and proportion of children in New South Wales affected by parental incarceration, and to describe the health impact of punitive incarceration on the children of prisoners.

METHODS

In 2001, NSW Corrections Health Service conducted a cross-sectional survey of prison inmates randomly selected from each of the 29 prisons in NSW, representing 11% of male and 30% of female inmates in the State. The survey included questions regarding parental status and number of children. A population model was developed, which incorporated increases in the prison population and recidivism, to estimate the number of children under 16 years of age in NSW ever having experienced parental incarceration.

RESULTS

In 2001, there were approximately 14,500 children under the age of 16 years in NSW who experienced parental incarceration during the year. It is estimated that in 2001 there were 60,000 children under 16 years in NSW who had ever experienced parental incarceration in their lifetime, representing 4.3% of all children and 20.1% of Indigenous children.

CONCLUSIONS

The number of children who have experienced parental incarceration is significant in NSW and across Australia. Indigenous children are much more likely to experience parental incarceration than non-Indigenous children.

IMPLICATIONS

Children of prisoners are at high risk of negative health outcomes and are themselves at an increased risk of offending later in life. The needs of these children must be recognised and policies introduced to reduce the adversities they face. The social, politico-legal and economic conditions that are contributing to the continuing rise in incarceration rates must be recognised, and measures must be taken to reduce this trend.

A multilevel analysis of socioeconomic (small area) differences in household food purchasing behaviour

STUDY OBJECTIVE

To examine the association between area and individual level socioeconomic status (SES) and food purchasing behaviour.

DESIGN

The sample comprised 1000 households and 50 small areas. Data were collected by face to face interview (66.4% response rate). SES was measured using a composite area index of disadvantage (mean 1026.8, SD = 95.2) and household income. Purchasing behaviour was scored as continuous indices ranging from 0 to 100 for three food types: fruits (mean 50.5, SD = 17.8), vegetables (61.8, 15.2), and grocery items (51.4, 17.6), with higher scores indicating purchasing patterns more consistent with dietary guideline recommendations.

SETTING

Brisbane, Australia, 2000.

PARTICIPANTS

Persons responsible for their household's food purchasing.

MAIN RESULTS

Controlling for age, gender, and household income, a two standard deviation increase on the area SES measure was associated with a 2.01 unit increase on the fruit purchasing index (95% CI -0.49 to 4.50). The corresponding associations for vegetables and grocery foods were 0.60 (-1.36 to 2.56) and 0.94 (-1.35 to 3.23). Before controlling for household income, significant area level differences were found for each food, suggesting that clustering of household income within areas (a composition effect) accounted for the purchasing variability between them.

CONCLUSIONS

Living in a socioeconomically advantaged area was associated with a tendency to purchase healthier food, however, the association was small in magnitude and the 95% CI for area SES included the null. Although urban areas in Brisbane are differentiated on the basis of their socioeconomic characteristics, it seems unlikely that where you live shapes your procurement of food over and above your personal characteristics.