The incidence of Type 1 diabetes among 0-14-year-olds in Australia is very high compared with available data from many other countries. The rate of increase observed globally in the last decade has continued well into this decade in Australia. The rising incidence cannot be explained by changes in genetic susceptibility; there is an urgent need to examine the environmental factors that have contributed to this increase. The findings of this study also have important implications for resource planning.
The results presented herein summarize the most up-to-date cardiovascular statistics available at this time in Australia. The analysis presented here is based on and extends results published in two Australian Institute of Health and Welfare (AIHW) reports, namely Cardiovascular disease: Australian facts 2011 and the cardiovascular disease (CVD) section of Australia's Health 2012. Despite significant improvements in the cardiovascular health of Australians in recent decades, CVD continues to impose a heavy burden on Australians in terms of illness, disability and premature death. Direct health care expenditure for CVD exceeds that for any other disease group. The most recent national data have been analysed to describe patterns and trends in CVD hospitalization and death rates, with additional analysis by Indigenous status, remoteness and socioeconomic group. The incidence of and case-fatality from major coronary events has also been examined. Although CVD death rates have declined steadily in Australia since the late 1960s, CVD still accounts for a larger proportion of deaths (33% in 2009) than any other disease group. Worryingly, the rate at which the coronary heart disease death rate has been falling in recent years has slowed in younger (35-54 years) age groups. Between 1998-99 and 2009-10, the overall rate of hospitalizations for CVD fell by 13%, with declines observed for most major CVDs. In conclusion, CVD disease remains a significant health problem in Australia despite decreasing death and hospitalization rates.
Background
National linked mortality and census data have not previously been available for Australia. We estimated education-based mortality inequalities from linked census and mortality data that are suitable for international comparisons.
Methods
We used the Australian Bureau of Statistics Death Registrations to Census file, with data on deaths (2011–2012) linked probabilistically to census data (linkage rate 81%). To assess validity, we compared mortality rates by age group (25–44, 45–64, 65–84 years), sex and area-inequality measures to those based on complete death registration data. We used negative binomial regression to quantify inequalities in all-cause mortality in relation to five levels of education [‘Bachelor degree or higher’ (highest) to ‘no Year 12 and no post-secondary qualification’ (lowest)], separately by sex and age group, adjusting for single year of age and correcting for linkage bias and missing education data.
Results
Mortality rates and area-based inequality estimates were comparable to published national estimates. Men aged 25–84 years with the lowest education had age-adjusted mortality rates 2.20 [95% confidence interval (CI): 2.08‒2.33] times those of men with the highest education. Among women, the rate ratio was 1.64 (1.55‒1.74). Rate ratios were 3.87 (3.38‒4.44) in men and 2.57 (2.15‒3.07) in women aged 25–44 years, decreasing to 1.68 (1.60‒1.76) in men and 1.44 (1.36‒1.53) in women aged 65–84 years. Absolute education inequalities increased with age. One in three to four deaths (31%) was associated with less than Bachelor level education.
Conclusions
These linked national data enabled valid estimates of education inequality in mortality suitable for international comparisons. The magnitude of relative inequality is substantial and similar to that reported for other high-income countries.
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