Table 1.
Details of the births performed with the CMA intervention
| n (%) | |
|---|---|
| Births with CMA intervention | 1,430 (100.0) |
| Onset of labour | |
| Spontaneous onset | 1,048 (73.3) |
| Induction of labour | 382 (26.7) |
| Second stage of labour* | |
| Time second stage (minutes), median (IQR) | 102 (57–169) |
| Missing data | 2 (0.1) |
| Active second stage of labour (minutes) median (IQR) | 35 (24–52) |
| Missing data | 40 (2.8) |
| Choice of Second midwife† | |
| Chosen by the primary midwife | 326 (22.8) |
| First midwife available | 481 (33.6) |
| The second midwife nominated herself | 88 (6.2) |
| Being the midwife in charge (coordinator) | 360 (25.2) |
| Missing data | 175 (12.2) |
| Work experience – primary midwife§‡ | |
| < 2 years | 485 (33.9) |
| 2–5 years | 327 (22.9) |
| 6–20 years | 319 (22.3) |
| > 20 years | 293 (20.5) |
| Missing data | 6 (0.4) |
| Work experience – second midwife†‡ | |
| < 2 years | 236 (16.5) |
| 2–5 years | 262 (18.3) |
| 6–20 years | 436 (30.5) |
| > 20 years | 453 (31.7) |
| Missing data | 43 (3.0) |
| Duration of CMA† | |
| Duration of CMA (minutes), median (IQR) | 15 (10–20) |
| < 15 | 628 (43.9) |
| ≥ 15 | 710 (49.6) |
| Missing data | 92 (6.4) |
* Begins when the cervix is fully dilated and concludes with the birth of the baby
† Reported by the second midwife
‡ All midwives could participate as either the primary or second midwife on multiple occasions
§ Reported by the primary midwife