Demographic Characteristics in Low-Risk Groups by Specialty
| Characteristic | OB* (n = 2318) | FP (n = 802) | P Value for Difference |
|---|---|---|---|
| Age [Mean (SD)] | 26.3 (4.9) | 25.8 (4.7) | .01 |
| Age | |||
| ≤19 | 83 (3%) | 47 (6%) | .01 |
| 20 to 34 | 2066 (89%) | 717 (89%) | NS |
| ≥35 | 169 (7%) | 38 (5%) | .01 |
| Gestational age [mean weeks (SD)] | 39.0 (1.1) | 39.0 (1.2) | NS |
| Parity | |||
| Nulliparous | 879 (38%) | 284 (35%) | NS |
| Multiparous | 1439 (62%) | 518 (65%) | NS |
| Time of day | |||
| 7:00 am to 5:59 pm | 1340 (58%) | 414 (52%) | 0.01 |
| 6:00 pm to 10:59 pm | 445 (19%) | 169 (21%) | NS |
| 11:00 pm to 6:59 am | 533 (23%) | 219 (27%) | 0.02 |
* OB, obstetrician; FP, family physician; NS, not significant at α = 0.05 level.