Table 5 Background information of the two groups (BCM vs ACM) of women taking part in the study (SD: standard deviation; NS: not significant)
From: General methods for measuring and comparing medical interventions in childbirth: a framework
Basic and demographic data | BCM Group | ACM Group | Difference |
|---|---|---|---|
Number of women | 637 | 1375 | |
Nulliparous (%) | 352 (55.3) | 776 (56.4) | NS |
Multiparous (%) | 285 (44.7) | 599 (43.6) | NS |
Average age, in years [SD] | 31,7 [5,4] | 31,9 [5,7] | NS |
Average gestational age, in weeks [SD] | 39,9 [1,1] | 40,1 [1,1] | NS |
Range og gestational age, in weeks | 37–42 ws | 37–42 ws | NS |
Previous abortions (%) | 172 (27) | 369 (27) | NS |
Previous stillbirth | 0 | 0 | NS |
Previous preterm birth | 0 | 0 | NS |
Average fetal weight, in grammes at birth [SD] | 3362 [416] | 3337 [425] | NS |
Ethnicity | |||
Italian (%) | 465 (73) | 930 (68) | NS |
Other (%) | 172 (27) | 445 (32) | NS |
Epidural use (%) | 146 (23) | 297 (22) | NS |