Table 1.
Study measures
| Variable | Methods |
|---|---|
| General data | |
| Demographic data | Questionnaire |
| Medical history | Questionnaire |
| Sun exposure | Questionnaire |
| Anthropometric and clinical data | |
| Height, weight, waist and hip circumference | Stadiometer, digital scale (Seca 840, Germany) |
| Blood pressure | A digital sphygmomanometer (BC08, Beurer, Germany). |
| Blood data | |
| Fasting plasma glucose, lipid profile | Pars Azmoon, Tehran, Iran |
| Complete blood cell count | Mythic, Orphe'e, France |
| VDR gene polymorphisms | PCR-RFLP, Corbett Rotor-Gene 6000 instrument (Corbett Life Science) |