This paper investigates gender differences in the timing of ischemic h
eart disease (IHD) mortality among white Americans. Three age-at-death
groupings are examined, using a model incorporating three types of in
dependent variables: lifestyle, socioeconomic status, and biology/here
dity. Logistic regression techniques are used to analyze National Mort
ality Follow-back Survey data. Three hypotheses drawn from the literat
ure are tested: (1) that IHD mortality risks will vary by gender and a
cross the life course; (2) that the independent variables will exert a
lower mortality risk for women than for men at all ages of death; and
(3) that differential risks by gender will be larger for younger age-
at-death groups. Findings support the first and third hypotheses. The
importance of research on gender differentials in age at IHD mortality
in relation to parental heart-attack mortality, smoking and spousal s
moking, occupation, and fertility is highlighted.