| Variables | Number of cases (N) | Percentage(%) |
| Age (years) |
|
|
| <20 | 21 | 8.0 |
| 20 - 30 | 159 | 60.4 |
| >30 - 40 | 80 | 30.6 |
| >40 | 3 | 1.0 |
| Height (cm) |
|
|
| <150 | 4 | 1.6 |
| ≥150 | 188 | 71.1 |
| Not mentioned | 71 | 27.3 |
| Parity |
|
|
| Primipara | 76 | 28.9 |
| Paucipara | 158 | 59.9 |
| Multipara | 29 | 11.2 |
| Total | 263 | 100.0 |