Table 2.
PCS | Bodily Pain | Vitality | ||
---|---|---|---|---|
Variable | Relative Risk (95% CI) | Relative Risk (95% CI) | Relative Risk (95% CI) | |
Intercept | 0.090*** (0.07–0.11) | 0.030*** (0.02–0.04) | 0.046*** (0.04–0.06) | |
Baseline value | 1.03*** (1.02–1.03) | 1.04*** (1.03–1.05) | 1.03*** (1.03–1.04) | |
Age | Per 5 years | 1.18*** (1.12–1.23) | 1.06* (1.01–1.11) | 1.09*** (1.06–1.12) |
Gender (ref = Female) | Male | 0.94 (0.83–1.06) | 0.78* (0.69–0.89) | 1.01 (0.94–1.10) |
Race (ref = White) | Black | 1.26* (1.01–1.58) | 1.23 (0.98–1.53) | 1.14 (0.98–1.32) |
Other | 0.98 (0.64–1.50) | 0.99 (0.66–1.48) | 1.08 (0.85–1.37) | |
Education (ref = High school or less) | Post high school or more | 0.94 (0.83–1.06) | 0.96 (0.85–1.09) | 0.96 (0.89–1.04) |
Other | 0.89 (0.59–1.35) | 0.78 (0.50–1.21) | 1.01 (0.79–1.28) | |
Income (ref = ≤$45 000) | ≥$45 001 | 0.81** (0.70–0.93) | 0.80** (0.69–0.91) | 0.86*** (0.78–0.93) |
Not reported | 0.89 (0.75–1.05) | 0.90 (0.76–1.06) | 0.89* (0.80–1.00) | |
Marital status (ref = Married or as married) | Widowed, separated or divorced | 1.03 (0.90–1.18) | 0.89 (0.77–1.02) | 1.01 (0.92–1.10) |
Never married | 1.17 (0.89–1.53) | 0.88 (0.65–1.19) | 1.23* (1.04–1.46) | |
BMI | Per 5 unit | 1.13*** (1.07–1.19) | 1.06* (1.00–1.11) | 1.08*** (1.04,1.11) |
Comorbidity (ref = 0) | 1 | 1.38*** (1.20–1.59) | 1.39*** (1.20–1.59) | 1.14** (1.04–1.24) |
2–5 | 1.59*** (1.35–1.88) | 1.70*** (1.45–1.99) | 1.27*** (1.14–1.42) | |
≥6 | 1.55*** (1.31–1.83) | 1.49*** (1.26–1.76) | 1.19** (1.07–1.33) | |
Smoking history (ref = Never smoked) | Other | 1.05 (0.93–1.17) | 1.09 (0.98–1.22) | 0.99 (0.92–1.06) |
Notes: BMI = body mass index; PCS = physical component summary. (a) Age = (age-60)/5, BMI = (bmi-25)/5, estimates are relative risk. (b) Significance codes: ***p < .001, **p < .01, *p < .05.