Table 1.
Subject characteristics
| Characteristics | Means ± SD | Ranges |
|---|---|---|
| Age, yr | 22 ± 2 | 18–27 |
| BMI, kg/m2 | 24 ± 3 | 19–32 |
| Systolic BP, mmHg | 113 ± 7 | 100–124 |
| Diastolic BP, mmHg | 71 ± 8 | 50–82 |
| Heart rate, beats/min | 64 ± 7 | 51–76 |
| M-index, AU | 46 ± 14 | 30–81 |
| Blood biochemistry | ||
| HbA1c, % | 5.1 ± 0.3 | 4.5–5.7 |
| Total cholesterol, mg/dL | 160 ± 29 | 104–237 |
| HDL, mg/dL | 58 ± 13 | 35–92 |
| LDL, mg/dL | 87 ± 23 | 26–135 |
Values are means ± SD and ranges; n = 33 (14 men, 19 women). AU, arbitrary units; BMI, body mass index; BP, blood pressure; HbA1c, hemoglobin A1C; HDL, high-density lipoprotein; LDL, low-density lipoprotein; M-index, a skin-reflectance measure of melanization.