Paternal mortality by number of births stratified by the mother’s education in years. Cardiovascular (A), noncardiovascular (B). Norwegian-born fathers and mothers, first birth after 1966 and before 1991 with same paternity. Adjusted for fathers’ birth year. HR, hazard ratio; CI, confidence interval; ref, reference.
Norwegian born fathers and mothers. 1st birth >1966 and <1991. Same paternity. Adjusted fathers’ birth year.