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. Author manuscript; available in PMC: 2012 Apr 26.
Published in final edited form as: Soc Sci Med. 2010 Feb 20;70(10):1558–1566. doi: 10.1016/j.socscimed.2010.02.003

Table 4.

Mortality Hazard Rate Ratios (95% Confidence Intervals) for Body Weight and Physical Activity, Americans’ Changing Lives Sample Stratified by Age, 1986-2005

Variable Model 1a Hazard Rate Ratio (95% CI) <55 at Baseline Model 1b Hazard Rate Ratio (95% CI) <55 at Baseline Model 2a Hazard Rate Ratio (95% CI) 55+ at Baseline Model 2b Hazard Rate Ratio (95% CI) 55+ at Baseline
Body Mass Index
Normal 1.00 1.00 1.00 1.00
Underweight 1.97 (0.53 – 7.39) 2.57 (0.79 – 8.36) 2.00 (1.53 – 2.62) 2.12 (1.63 – 2.75)
Overweight 1.09 (0.69 – 1.73) 1.10 (0.67 – 1.80) 0.83 (0.71 – 0.98) 0.88 (0.75 – 1.04)
Obese BMI=30+ 1.29 (0.77 – 2.18) 1.35 (0.77 – 2.38) 0.68 (0.55 – 0.84) 0.79 (0.64 – 0.98)
Physical Activity
 Quintile 5 1.00 1.00
 Quintile 4 0.57 (0.23 – 1.24) 1.32 (0.86 – 2.03)
 Quintile 3 0.68 (0.39 – 1.15) 1.28 (0.96 – 1.81)
 Quintile 2 0.88 (0.47 – 1.66) 1.32 (0.96 – 1.81)
 Quintile 1 (low) 1.06 (0.57 – 1.98) 1.88 (1.41 -2.50)

Models control for age, gender, race, residence, education, income, smoking, alcohol use, and health status