Pulse pressure calculated from sex-stratified regression models as systolic minus diastolic blood pressure. 1940s (solid) and 1970s (dashed) birth cohorts by urbanicity at each survey year: low (grey with triangle markers; 25th percentile) or high (black with square markers; 75th percentile). Adjusted for time, smoking (men), parity (women), alcohol consumption, and income.
Abbreviations: SBP: systolic blood pressure; DBP: diastolic blood pressure