Table 2.
Mean and standard deviation of sleep duration, physical activity, anthropometric indices and serum zinc concentration in patients with depression receiving zinc supplementation or placebo
| Variables | Study groups | N | Study period | ||
|---|---|---|---|---|---|
|
| |||||
| Baseline | Sixth Week | Twelfth week | |||
| Sleep duration (hours per day) | Zinc Placebo |
21 17 |
7±1 7±1 |
7±1 7±1 |
7±1 7±1 |
| Physical activity (d/MET/h) | Zinc Placebo |
21 17 |
16.5±3 18±3 |
17±3 18±4 |
17±3 18±3 |
| Weight (kg) | Zinc Placebo |
21 17 |
71±17 68.5±10 |
72±17.5 69±10 |
71±18 70±10.5 |
| Height (cm) | Zinc Placebo |
21 17 |
161±6 162±9 |
- - |
- - |
| BMI (kg/m 2 ) | Zinc Placebo |
21 17 |
27±6 26±5 |
28±7 26±5 |
27.5±6 27±5 |
| Serum zinc concentration (µg/dL) | Zinc Placebo |
20†
17 |
100±15 106±17 |
- - |
107±11 106±14 |
†
When serum zinc concentration was assessed, one subject was dropped out in zinc group due to loss of blood sample