Table 3.

Hazard ratio per 1-SD^* increase in PR for selected outcomes in Health ABC.

	Adjusted for age, sex, site, race		Multivariable Adjusted*
End Point	HR (95% CI)	P	HR (95% CI)	P
HR per 1-SD increase in PR
Incident heart	1.16 (1.05, 1.28)	0.003	1.13 (1.02, 1.25)	0.019
failure
Incident AF	1.15 (1.06, 1.25)	0.0010	1.13 (1.04, 1.23)	0.005
All-cause mortality	0.99 (0.93, 1.07)	0.95	1.03 (0.96, 1.11)	0.37
HR comparing PR >200ms versus ≤ 200ms (reference)
Incident heart	1.60 (1.22, 2.09)	0.0006	1.46 (1.11, 1.93)	0.006
failure
Incident AF	1.33 (1.05, 1.68)	0.019	1.26 (0.99, 1.61)	0.059
All-cause mortality	1.08 (0.89, 1.31)	0.44	1.14 (0.94, 1.39)	0.19

Health ABC indicates Dynamics of Health, Aging and Body Composition Study; AF, atrial fibrillation.

^*1-SD PR increase corresponds to 29 ms.

^†Multivariable models adjusted for age, sex, site, body mass index, heart rate, systolic and diastolic blood pressures, past/current smoking, ratio of total to high density lipoprotein, electrocardiographic left ventricular hypertrophy, hypertension treatment, selected medications (amiodarone, cardiac glycosides, calcium channel blockers, beta blockers) and prevalent cardiovascular disease.