Table 1.
Subject distribution by demographics
| Variables | n | % |
| Sex | ||
| Female | 547 | 80.7 |
| Male | 131 | 19.3 |
| Age in years | ||
| ≤29 | 165 | 24.3 |
| 30–39 | 298 | 44.0 |
| 40–49 | 158 | 23.3 |
| ≥50 | 57 | 8.4 |
| Profession | ||
| Paediatricians | 338 | 49.9 |
| Obstetricians | 339 | 50.0 |
| Professional title | ||
| Resident doctor | 282 | 41.6 |
| Attending physician | 196 | 28.9 |
| Associate senior | 123 | 18.1 |
| Chief physician | 77 | 11.4 |
| Education | ||
| Junior college | 7 | 1.0 |
| Undergraduate | 356 | 52.5 |
| Master’s degree | 295 | 43.5 |
| Doctorate | 20 | 2.9 |
| Marriage | ||
| Unmarried | 141 | 20.8 |
| Married | 522 | 77.0 |
| Divorced | 15 | 2.2 |
| Widowed | 0 | 0 |
| Hours work/week | ||
| ≤40 | 20 | 2.9 |
| 40–50 | 164 | 24.2 |
| 50–60 | 225 | 33.2 |
| ≥60 | 269 | 39.7 |
| Area | ||
| East | 54 | 8.0 |
| Central | 91 | 13.4 |
| West | 432 | 63.7 |
| Northeast | 101 | 14.9 |