Cohort Characteristics, Persons with Myocardial Infarction and follow-up by age, sex, and family history.

Characteristics on 128,384 persons with myocardial infarction in a cohort of 4,445,255 persons born in 1930 or later and aged 20 years or more. The cohort was followed for 104,135,666 person-years from 1977 to 2012 in Denmark. Abbreviations: MI, Myocardial Infarctiona Cohort members could contribute more than 1 type relative to the analyses; numbers add up to more than 128,384 (100%).bFirst-degree: parents, children and siblings.cSecond-degree: grandparents, grandchildren, half-siblings, uncles, aunts, nieces and nephews.Cohort Characteristics, Persons with Myocardial Infarction and follow-up by age, sex, and family history.