Table 4.
The association between 25(OH)D (ng/mL) and unhealthy days.
| Physically Unhealthy Days | Mentally Unhealthy Days | Activity Limitation | Total Unhealthy Days § | |||||
|---|---|---|---|---|---|---|---|---|
| RR (95% CI) | P * | RR (95% CI) | P * | RR (95% CI) | P * | RR (95% CI) | P * | |
| Crude Rate Ratio (RR) | ||||||||
| 25(OH)D (ng/mL) | 0.96 (0.94–0.97) | <0.001 | 1.01 (0.99–1.02) | 0.147 | 0.99 (0.97–1.01) | 0.330 | 0.98 (0.97–0.99) | 0.001 |
| Adjusted Rate Ratio (RR) β | ||||||||
| 25(OH)D (ng/mL) | 0.95 (0.94–0.97) | <0.001 | 0.98 (0.98–1.03) | 0.060 | 0.99 (0.97–1.02) | 0.503 | 0.99 (0.98–0.99) | 0.014 |
| Age (years) | 0.96 (0.95–0.97) | <0.001 | 0.99 | 0.225 | 0.96 (0.94–0.98) | <0.001 | 0.98 (1.03–1.07) | <0.001 |
| Bmi (kg/h2) | 1.06 (1.04–1.09) | <0.001 | 1.04 (1.01–1.07) | 0.008 | 0.97 (0.92–1.02) | 0.259 | 1.05 (1.03–1.07) | <0.001 |
| Pain severity (VAS) | 1.29 (1.23–1.35) | <0.001 | 1.07 (1.01–1.13) | 0.024 | 1.32 (1.23–1.42) | <0.001 | 1.18 (1.14–1.22) | <0.001 |
| Physical Activity (h/week) | 1.08 (1.04–1.11) | <0.001 | 0.98 (0.94–1.03) | 0.414 | 1.11 (1.05–1.17) | <0.001 | 1.03 (1–1.06) | 0.060 |
| Sun exposure (h/week) | 1.21 (0.99–1.48) | 0.070 | 1.13 (0.92–1.39) | 0.235 | 0.48 (0.31–0.75) | <0.001 | 1.15 (1–1.33) | 0.056 |
§ sum of physical and mental unhealthy days; β Adjusted for: age (years), BMI, pain severity (musculoskeletal pain severity, VAS), physical activity (h/week), sun exposure (h/week); * Poisson regression P value.