Table 1.
Frequency of and Gestational Age at Initiation of Different Types of Activity Restriction Among Nulliparous Women With a Cervical Length Less Than 30 mm (N5646)
| Type of Restriction | Frequency | Estimated Gestational Age (wk) |
|---|---|---|
| Pelvic rest | 217 (33.6) | 23.9 (22.7, 27.7) |
| Work restriction | 196 (30.3) | 24.1 (22.8, 28.7) |
| Partial | 52 (8.0) | 24.8 (22.9, 29.8) |
| Complete | 144 (22.3) | 25.0 (23.0, 29.6) |
| Nonwork restriction | 212 (32.8) | 23.9 (22.9, 28.2) |
| Partial | 89 (13.8) | 24.4 (23.1, 28.7) |
| Complete | 123 (19.0) | 24.7 (22.9, 29.6) |
| Work or nonwork restriction | 221 (34.2) | 23.9 (22.9, 28.6) |
| Work or nonwork restriction or pelvic rest | 252 (39.0) | 23.9 (22.6, 27.9) |
Data are n (%) or median (25th, 75th percentile).