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The following gender-specific incidence rates are produced by the fourth module and are summarized in Table I. Age group-specific numbers of events (e), numbers of person-years {wpy), and one-year incidence rates (rate), are given for each level of the grouping variable, male (coded 1 for men and 0 for women). The one-year incidence of AD increases with age in both men and women (except for a small decrease in men from 85-89 to 90-94). The crude one-year incidence rates per 1000 person-years are 4.4 and 7.5 for men and women, respectively. Direct standardization to the overall age distribution yields age-adjusted one-year incidence rates per 1000 person-years of 5.0 and 6.9 for men and women, respectively.

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