Table 1.
Baseline characteristics of the participants.
| Characteristics | Vitamin E (N = 80) | Placebo (N = 80) |
|---|---|---|
| Age (years) b | 57 (53, 59) | 55 (52, 60) |
| Body mass index (kg/m2) b | 23.4 (20.7, 25.8) | 22.9 (21.4, 25.9) |
| Age at menopause (years) a | 50.4 ± 3 | 49.7 ± 2.7 |
| Years since menopause (years) a | 6.8 ± 5.4 | 7.1 ± 5.3 |
| Type of menopause c | ||
| Natural | 63 (78.75%) | 69 (86.25%) |
| Surgical | 17 (21.25%) | 11 (13.75%) |
| Marital status c | ||
| Single | 12 (15%) | 15 (18.75%) |
| Married | 51 (63.75%) | 55 (68.75%) |
| Divorced or widowed | 17 (21.25%) | 10 (12.5%) |
| Number of children c | ||
| 0 | 17 (21.25%) | 20 (25%) |
| 1 | 25 (31.25%) | 18 (22.5%) |
| ≥2 | 38 (47.5%) | 42 (52.5%) |
| Education c | ||
| Primary school | 4 (5%) | 9 (11.25%) |
| High school | 23 (28.75%) | 23 (28.75%) |
| Bachelor’s degree or higher | 53 (66.25%) | 48 (60%) |
| Underlying diseases c | ||
| Yes | 35 (43.75%) | 38 (47.5%) |
| No | 45 (56.25%) | 42 (52.5%) |
| Sedative drug used c | 24 (30%) | 14 (17.5%) |
| Caffeine consumption c | ||
| <3 drinks per week | 6 (7.5%) | 11 (13.75%) |
| >3 drinks per week | 19 (23.75%) | 17 (21.25%) |
| Financial status c | ||
| Bad | 3 (3.75%) | 6 (7.5%) |
| Fair | 61 (76.25%) | 62 (77.5%) |
| Good | 16 (20%) | 12 (15%) |
Notes: a Data expressed as mean ± standard deviation (SD). b Data expressed as median (range). c Data expressed as numbers (percentage).