Table 3.

Relationships of Measures of Body Size and Composition With Incident Atrial Fibrillation, Cardiovascular Health Study 1989–2008

Measure	Model 1a		Model 2b		Model 3c
	HRd	95% CI	HRd	95% CI	HRd	95% CI
Body mass index	1.10	1.03, 1.16	1.08	1.02, 1.15	1.03	0.96, 1.10
Weight	1.21	1.13, 1.30	1.21	1.13, 1.29	1.17	1.08, 1.26
Height	1.37	1.25, 1.50	1.38	1.25, 1.51	1.40	1.28, 1.54
Waist circumference	1.15	1.08, 1.23	1.14	1.07, 1.22	1.10	1.02, 1.18
Hip circumference	1.17	1.10, 1.25	1.17	1.10, 1.24	1.13	1.06, 1.21
Waist-to-hip ratio	1.04	0.97, 1.11	1.02	0.96, 1.10	1.00	0.93, 1.07
Fat mass	1.17	1.10, 1.25	1.16	1.09, 1.24	1.12	1.04, 1.20
Fat-free mass	1.26	1.13, 1.39	1.26	1.13, 1.40	1.23	1.11, 1.37

Abbreviations: CI, confidence interval; HR, hazard ratio.

^a Adjusted for age, sex, and race.

^b Adjusted for age, sex, race, smoking status, physical activity level, alcohol consumption, estrogen therapy use, and serum creatinine level.

^c Adjusted for age, sex, race, smoking status, physical activity level, alcohol consumption, estrogen therapy use, serum creatinine level, systolic blood pressure, antihypertensive medication use, impaired fasting glucose level, diabetes, low-density lipoprotein level, high-density lipoprotein level, triglyceride level, and C-reactive protein concentration.

^d All measures were modeled linearly, except for body mass index (weight (kg)/height (m)²), which was modeled with linear and quadratic terms. For body mass index, risk estimates are per 1–standard-deviation increment (4.7) from the mean (26.6). For other measures, risk estimates are per 1–standard-deviation increments across the range: for weight, 14.6 kg; height, 9.4 cm; waist circumference, 13.2 cm; hip circumference, 10.0 cm; waist-to-hip ratio, 0.09 units; fat mass, 10.8 kg; and fat-free mass, 9.2 kg.