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Figure 3 Age- and sex-adjusted relative risks (RR) and 95% confidence intervals for the association between pulse pressure (PP) and incidence of coronary heart disease (CHD), after stratification according to presence of hypertension (systolic blood pressure 140 or diastolic blood pressure 90 mm Hg) and current use of antihypertensive medications (self-report use or current use of diuretics, beta-blockers, nitrates or nifedipine by direct inspection of medications).