Table 1.
Characteristics of nine participants in the study
| Case | Age (year) | Weight (kg) | Height (cm) | BMI (kg m−2) | Smoking history | Drinking history | Educational background | PE history (year) | Frequency of intercourse (time per week) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 31 | 56 | 165 | 20.6 | No | Yes | TSS | 8 | 4 |
| 2 | 28 | 68 | 172 | 23.0 | No | Yes | TSS | 13 | 3 |
| 3 | 41 | 52 | 150 | 23.1 | No | Yes | JHS | 15 | 2 |
| 4 | 28 | 68 | 170 | 23.5 | No | Yes | Undergraduate | 5 | 2 |
| 5 | 28 | 62 | 173 | 20.7 | No | No | SHS | 1 | 2 |
| 6 | 26 | 62 | 172 | 21.0 | No | Yes | SHS | 1 | 3 |
| 7 | 29 | 78 | 173 | 26.1 | Yes | Yes | TSS | 5 | 2 |
| 8 | 36 | 60 | 165 | 22.0 | No | Yes | JHS | 1 | 6 |
| 9 | 25 | 55 | 160 | 21.5 | No | No | JHS | 8 | 3 |
| Mean±s.d. | 30.2±5.1 | 62.3±8.0 | 166.7±7.7 | 22.4±1.8 | - | - | - | 6.3±5.2 | 3.0±1.3 |
BMI: body mass index; JHS: junior high school; s.d.: standard deviation; SHS: senior high school; TSS: technical secondary school; PE: premature ejaculation; -: not applicable