Disparities in Disability Life Expectancy in US Birth Cohorts: The Influence of Sex and Race.

Racial and sex disparities in chronic diseases and mortality are sources of health inequality and have been observed from infancy to adulthood. Disparities in health and mortality contribute to corresponding disparities in healthy life. I address two previously unanswered questions in the aging literature. First, does the racial and sex gap in healthy life narrow, persist, or expand over age and time, particularly considering severity of ill health, among the oldest old? Second, do some race-sex groups of birth cohorts live not just longer lives, but longer healthier lives, while others spend additional years in illness? To estimate the quantities, I employ a refined definition of physical disability and apply a new extension of Sullivan's method to true birth cohorts. The results suggest among the oldest old, few racial or sex disparities exist over age and time in mild disability. Yet, racial and sex disparities persist over age and time in severe disability.