Table 1: Baseline demographic and clinical characteristics of study participants by group allocation.
Characteristics | Control (N = 4) | Intervention (N = 6) |
---|---|---|
Age (years, mean (SD)) | 74 (17) | 73 (16) |
Gender (no. (%)) | ||
Female | 1 (25) | 4 (67) |
Male | 3 (75) | 2 (33) |
Body mass index (kg/m2 mean, (SD)) | 26.9 (11.4) | 36.3 (16.5) |
Ethnicity (no. (%))a | ||
Caucasian/White | 3 (75) | 5 (83) |
African American | 1 (25) | 0 |
Native American | 0 | 1 (17) |
Skin Type (no. (%))b | ||
II | 0 | 1 (17) |
III | 3 (75) | 3 (50) |
IV | 0 | 2 (33) |
V | 1 (25) | 0 |
Typical Sun Exposure/Week (no. (%)) | ||
< 30 Minutes | 2 (50) | 3 (50) |
30-60 Minutes | 1 (25) | 3 (50) |
> 60 Minutes | 1 (25) | 0 |
Typical Sunscreen Usage (no. (%)) | ||
Never | 4 (100) | 3 (50) |
Sometimes | 0 | 3 (50) |
Always | 0 | 0 |
Total Vitamin D Intake (IU/day, mean (SD))c | 1370 (284) | 300 (227) |
Baseline Serum 25(OH)D (nmol/L, mean (SD)) | 74.6 (15.2) | 71.6 (11.0) |
aOther possible ethnicity options in questionnaire included Latino/Hispanic, Asian or other; bNone of the participants reported skin types I or VI; c Vitamin D intake from food and supplements.