Table 4.
Logistic regression models regarding 25(OH)D levels, with the following independent variables: sex (male/female), age (<50/≥50 years), wearing of clothing which limits sunlight exposure (yes/no), and household location (urban/semiurban/rural).
| Model I: (vitamin D deficiency or insufficiency vs sufficiency) | Model II: (vitamin D deficiency vs sufficiency) | |||
|---|---|---|---|---|
| Odds ratio (95%CI) | p value | Odds ratio (95% CI) | p value | |
| Age (years) | ||||
| <50 (reference) | 1 | 1 | ||
| ≥50 | 0.55 (0.28-1.09) | 0.090 | 0.56 (0.28-1.13) | 0.107 |
| Gender | ||||
| Male (reference) | 1 | 1 | ||
| Female | 1.28 (0.63-2.57) | 0.484 | 1.47 (0.72-3.00) | 0.282 |
| Wearing clothes which restrict exposure to sunlight | ||||
| Yes | 2.90 (1.45-5.81) | 0.003 | 2.63 (1.31-5.28) | 0.006 |
| No (reference) | 1 | 1 | ||
| Area of residence | ||||
| Semiurban (reference) | 1 | 1 | ||
| Urban | 2.47 (1.17-5.21) | 0.017 | 2.42 (1.14-5.12) | 0.020 |
| Rural | 4.13 (0.91-18.58) | 0.064 | 4.19 (0.93-18.91) | 0.062 |
| r2 | 0.091 | 0.098 | ||