| No. | Name of Lifestyle | Third Class | Second Class | First Class | Type | No. of Studies |
|---|---|---|---|---|---|---|
| 1 | Skin color | NA | Skin color | Physiological characteristics | Risk factor No statistical significance factor | 2 |
| 2 | Skin phototype | Skin phototype | Skin color | Physiological characteristics | No statistical significance factor | 1 |