Variables | PR duration | p | |||
Long | Normal | Short | |||
Sex | F | 9.10 | 90.90 | 0.00 | 0.409 |
| M | 20.50 | 79.00 | 0.50 | |
Age group (years) | <20 | 33.30 | 66.70 | 0.00 | 0.575 |
| 20 - 29 | 16.20 | 83.80 | 0.00 | |
| ≥30 | 19.40 | 79.90 | 0.70 | |
Entire sample | 19.4 | 80.20 | 04.00 | - |