Patterns of geriatric health assessment use among community dwelling older Australian women over a 14-year period.

OBJECTIVE: To assess which older Australian women had Medicare subsidized health assessments between 1999 and 2013.

METHODS: This study used prospective, longitudinal survey data from the 1921 to 1926 birth cohort of Australian Longitudinal Study on Women's Health (ALSWH) linked with Medicare Australia data on health services use. Over 11,000 Australian women were included in the study. Latent class analysis was used to identify assessment patterns over time, accounting for death, and based on three categories ('no assessment'; 'assessment; 'deceased') for each year between 1999 and 2013. Further analysis explored the impact of health and sociodemographic characteristics on class membership.

RESULTS: Of the women included in the latent class analysis, 37% never had any assessment and the remainder had had at least one assessment. After a steady uptake from 1999 to 2003, there was decline in uptake from 2003 onwards. A six-class model with sufficient homogeneity and reliable estimation was selected to represent assessment patterns and mortality risk, labelled as: 'high mortality' rate with little chance for assessment (12.4%), 'intermediate mortality, low assessment' (14.1%), 'later mortality/low assessment' (13.1%), 'later mortality, high assessment' (7.0%), 'low mortality, low assessment' (31.8%), 'low mortality, high assessment' (21.6%). Older women with certain conditions (such as diabetes, depression, heart disease) were more likely to be in the low assessment groups, and women with difficulty managing on income were more likely to be in low assessment groups.

CONCLUSION: Distinct assessment and mortality patterns were seen, with many women not having assessment, in particular those who had certain health conditions, were taking 3+ medications, had difficulty in managing on income, needed help or were in respite care, and had caring responsibilities. The findings point to a need to promote these assessments among older women, and to reduce financial barriers, even within the context of a heavily subsidized health care system.