Table 2.
Adjusted Poisson Risk Ratios and 95% CI for the Likelihood of Achieving a 0.05 m/s Increase or Decrease in Gait Speed from Baseline, According to Subgroup Membership (n = 1 188)
| Subgroup Category | Likelihood of +0.05 m/s | Likelihood of -0.05 m/s | ||
|---|---|---|---|---|
| RR (95% CI)* | p-value | RR (95% CI)* | p-value | |
| Age (≥ vs < 65 years) | 0.87 (0.73,1.04) | .13 | 1.37 (0.92,2.05) | .12 |
| Sex (female vs male) | 0.86 (0.72,1.02) | .08 | 1.49 (1.04,2.12) | .03 |
| Race (Black vs White) | 0.84 (0.68,1.03) | .09 | 1.32 (0.92,1.90) | .14 |
| BMI (≥ vs <35 kg/m2) | 0.91 (0.77,1.07) | .26 | 1.26 (0.89,1.79) | .19 |
| Diabetes (yes vs no) | 0.95 (0.76,1.18) | .63 | 1.46 (0.93,2.27) | .11 |
| Hypertension (yes vs no) | 0.95 (0.80,1.12) | .51 | 1.54 (1.09,2.20) | .01 |
| CVD (yes vs no) | 0.86 (0.73,1.01) | .07 | 1.45 (1.05,1.98) | .02 |
| Gait speed (< vs ≥1.0 m/s) | 1.37 (1.09,1.73) | .01 | 0.67 (0.40,1.12) | .11 |
| CRP (≥ vs <3 mg/L) | 0.91 (0.77,1.07) | .24 | 1.08 (0.79,1.47) | .63 |
| IL-6 (≥ vs <2.5 pg/mL) | 0.91 (0.78,1.07) | .27 | 1.11 (0.81,1.51) | .52 |
Notes: BMI = body mass index; CVD = cardiovascular disease; CI = confidence interval; CRP = C-reactive protein; IL-6 = interleukin 6; m/s = meters per second; RR = risk ratio.
*Models adjusted for study, age, sex, race, baseline gait speed (except for the subgroup test including the covariate), and interaction between CR and subgroup.