Table 2. Weighted regression analyses examining the association between moderate-to-vigorous physical activity (outcome variable) and AMD, NHANES 2005–2006.
| Rate Ratio (95% CI) | ||
|---|---|---|
| Variables | Model 1 † | Model 2 ‡ |
| Age-related macular degeneration | ||
| Early AMD vs. None | 1.09 (0.75–1.58) | 1.09 (0.75–1.58) |
| Late AMD vs. None | 0.50 (0.28–0.90) | 0.54 (0.29–1.01) |
| Covariates | ||
| Age, per year increase | 0.95 (0.95–0.96) | 0.95 (0.95–0.96) |
| Female vs. Male | 0.60 (0.53–0.67) | 0.60 (0.53–0.67) |
| Other vs. non-Hispanic white | 0.90 (0.76–1.07) | 0.90 (0.76–1.07) |
| BMI, 1 kg/m2 higher | 0.95 (0.94–0.96) | 0.95 (0.94–0.96) |
| Cotinine, 1 ng/mL higher | 0.99 (0.99–0.99) | 0.99 (0.99–0.99) |
| Mean arterial pressure, 1 mmHg higher | 1.00 (0.99–1.01) | 1.00 (0.99–1.01) |
| Comorbid Illness | ||
| Coronary Heart Disease vs. No Coronary Heart Disease | 0.95 (0.70–1.29) | 0.95 (0.70–1.29) |
| Stroke vs. No Stroke | 0.81 (0.54–1.22) | 0.81 (0.54–1.22) |
| Diabetes vs. No Diabetes | 0.84 (0.70–1.02) | 0.84 (0.70–1.02) |
| Accelerometer wear time, hr | 1.06 (1.02–1.10) | 1.06 (1.02–1.10) |
| Valid accelerometer days, # | ||
| 5 vs. 4 days | 0.97 (0.71–1.33) | 0.97 (0.71–1.33) |
| 6 vs. 4 days | 0.94 (0.75–1.16) | 0.94 (0.75–1.16) |
| 7 vs. 4 days | 1.06 (0.85–1.29) | 1.06 (0.85–1.29) |
| Presenting better-eye visual acuity, per 0.1 logMAR increase | N/A | 0.98 (0.93–1.03) |
† Included all covariates except for visual acuity.
‡ Same as Model 1 except visual acuity added to the model.
Bold indicates statistical significance (p < 0.05). AMD = age-related macular degeneration. BMI = Body mass index.