TABLE 1.
Demographic data of the participants.
| Characteristic | Mean ± SD | ||
|---|---|---|---|
| Age (years) | 35.1 ± 23.8 | ||
| Sex (M/F) | 592/467 | ||
| BMI (kg/m2) | 24.1 ± 4.7 | ||
| Fitzpatrick | 3.3 ± 1.5 | ||
| Total samples | |||
| n (%) | Males (%) | Age (years) | |
| 1548 (100%) | 664 (42.9%) | 35.1 ± 23.8 | |
| BMI | |||
| BMI<25 | 1057 (68.3%) | 417 (39.4%) | 29.1 ± 21.4 |
| 25 ≤ BMI<30 | 346 (22.4%) | 168 (48.4%) | 43.8 ± 24.3 |
| 30 ≤ BMI | 145 (9.4%) | 79 (54.5%) | 48.6 ± 23.5 |
| Skin color type | |||
| Fitzpatrick 1–3 | 936 (60.5%) | 420 (44.9%) | 35.2 ± 23.8 |
| Fitzpatrick 4–6 | 612 (39.5%) | 244 (39.9%) | 34.9 ± 23.8 |
Body mass index (BMI): overweight defined as 25 ≤BMI <30, and obese defined as 30 ≤BMI. The Fitzpatrick color scale: Type 1—always burns, never tans, palest, can have freckles; Type 2—usually burns, tans minimally, light-colored but darker than fair; Type 3—sometimes mild burn, tans uniformly, golden honey or olive; Type 4—burns minimally, always tans well, moderate brown; Type 5—very rarely burns, tans very easily, dark brown; and Type 6—never burns, deeply pigmented dark brown to darkest brown.