Table 2.

Results From Separate Cox Proportional Hazard Analyses Exploring the Relationship of Body Composition Parameters and Physical Performance (per Standard Deviation Increments) With Mortality

	Model 1, HR (95% CI)	Model 2, HR (95% CI)	Model 3, HR (95% CI)	Model 4, HR (95% CI)
Muscle density (mg/cm3)	0.75 (0.65–0.86)*	0.90 (0.78–1.04)	0.94 (0.80–1.10)	0.94 (0.80–1.11)
Muscle area (cm2)	0.83 (0.69–0.98)*	0.82 (0.66–1.00)	0.84 (0.67–1.05)	0.86 (0.68–1.08)
Fat area (log value of cm2)	0.74 (0.64–0.84)*	1.00 (0.84–1.19)	0.99 (0.82–1.19)	0.96 (0.78–1.18)
Walking speed (m/s)	0.55 (0.48–0.62)*	0.69 (0.59–0.81)*	0.72 (0.60–0.87)*	0.73 (0.60–0.88)*

Notes: Standard deviations: muscle density, 3.570 mg/cm³; muscle area, 12.568 cm²; fat area (log value of cm²), 0.63086; walking speed, 0.30370 m/s. Model 1: adjusted for height and weight. Model 2: adjusted for model 1 + age and gender. Model 3: adjusted for model 2 + site, education, Mini-Mental State Examination score, height, weight, Center for Epidemiological Studies-Depression scale score, physical activity, congestive heart failure, coronary artery disease, hypertension, peripheral artery disease, respiratory disease, osteoarthritis, and stroke. Model 3: adjusted for model 3 + interleukin-6 (log value), C-reactive protein (log value), and tumor necrosis factor-α (log value). HR = hazard ratio; CI = confidence interval.

^*p < .05.