Table 1. Distribution of gender, body mass index (BMI), education level, income, dialysis causes, number of cups of tea consumed daily, and smoking in both groups.
| Indexes | Group | p-value | |||
|---|---|---|---|---|---|
| A* | B | ||||
| n | % | n | % | ||
| Sex | 0.634a | ||||
| Female | 10 | 52.6 | 9 | 45.0 | |
| Male | 9 | 47.4 | 11 | 55.0 | |
| BMI | 0.549b | ||||
| < 18.5 | 1 | 5.3 | 3 | 15.0 | |
| 18.5–24.9 | 12 | 63.2 | 12 | 60.0 | |
| 25–29.9 | 6 | 31.6 | 5 | 25.0 | |
| Education level | 0.588c | ||||
| Illiterate | 6 | 31.6 | 7 | 35.0 | |
| Elementary | 9 | 47.4 | 6 | 30.0 | |
| Diploma or higher | 4 | 21.1 | 7 | 35.0 | |
| Income | 0.513c | ||||
| Low | 4 | 21.1 | 6 | 30.0 | |
| Average | 14 | 73.7 | 14 | 70.0 | |
| Good | 1 | 5.3 | - | - | |
| Dialysis causes | 0.618a | ||||
| DM | 7 | 36.8 | 5 | 25.0 | |
| HTN | 4 | 21.1 | 4 | 20.0 | |
| DM, HTN | 4 | 21.1 | 8 | 40.0 | |
| Other | 4 | 21.1 | 3 | 15.0 | |
| Number of cups of tea | 0.857c | ||||
| 0 | - | - | 2 | 10.0 | |
| 1 | 5 | 26.3 | 5 | 25.0 | |
| 2 | 13 | 68.4 | 10 | 50.0 | |
| ≥ 3 | 1 | 5.3 | 3 | 15.0 | |
| Smoking | 1.000d | ||||
| No | 19 | 100 | 19 | 95.0 | |
| Yes | 0 | 0.0 | 1 | 5.0 | |
DM: diabetes mellitus; HTN: hypertension.
*Group A took valerian capsules in the first month and placebo in the second month, and vice versa in group B.
a: Chi-square; b: student’s t-test; c: Mann-Whitney; d: McNemar test.