Characteristics of participants, by intervention group
| Characteristic | No. (%) of participants* | ||
|---|---|---|---|
| Control group n = 1137 | Pain pamphlet group n = 1139 | Pain pamphlet and pain video group n = 1137 | |
| Maternal age, mean ± SD; yr | 33.5 ± 4.6 | 33.6 ± 4.6 | 33.6 ± 4.8 |
| Education level, postsecondary | 1055 (93.9) n = 1123 | 1062 (93.9) n = 1131 | 1056 (93.9) n = 1125 |
| Marital status, married/common law | 1086 (95.3) n = 1140 | 1084 (95.1) n = 1140 | 1083 (95.0) n = 1140 |
| Primiparous | 669 (58.8) | 666 (58.5) | 646 (56.8) |
| Mode of delivery, vaginal | 729 (64.1) | 722 (63.4) | 737 (64.8) |
| Singleton birth | 1117 (98.2) | 1124 (98.7) | 1122 (98.7) |
| Gestational age, mean ± SD; d | 275 ± 9.1 | 275 ± 8.6 | 275 ± 9.1 |
| Infant age at intervention, mean ± SD; yr | 1.0 ± 0.7 | 1.0 ± 0.6 | 1.0 ± 0.7 n = 1136 |
Note: SD = standard deviation.
↵* Unless specified otherwise.