Medicare enrollees (all ages) (in thousands), by age and sex, 2003 (vertical bar chart): Under 45 years: female, 744; male, 965. 45-54 years: female, 854; male, 1,032. 55-64: female, 1,170; male, 1,314. 65-74 years: female, 9,642; male, 8,218. 75-84 years: female, 7,533; male, 5,051. 85 years and older: female, 3,207; male, 1,356.

Source: Centers for Medicare and Medicaid Services. Unpublished data.