Table 6.
Incremental cost effectiveness ratios and net benefit statistics for normal birth outcome in women at low risk of complications according to planned place of birth: home, freestanding midwifery unit (FMU), or alongside midwifery unit (AMU) with obstetric unit (OU) as reference
| Home | FMU | AMU | |
|---|---|---|---|
| All low risk women | |||
| Cost difference (95% CI) | −590 (−618 to −563) | −247 (−280 to −211) | −154 (−190 to −118) |
| Difference in normal birth* (95% CI) | 0.300 (0.290 to 0.310) | 0.256 (0.245 to 0.268) | 0.184 (0.173 to 0.194) |
| Mean ICER (95% CI) | −1960 (−2034 to −1890) | −956 (−1076 to −847) | −836 (−1002 to −664) |
| Quadrant on cost effectiveness plane | South east | South east | South east |
| Mean net benefit (95% CI)† | 6609 (6411 to 6810) | 5377 (5133 to 5618) | 3828 (3600 to 4052) |
| Mean net benefit (95% CI)‡ | 9618 (9334 to 9909) | 7941 (7585 to 8298) | 5663 (5332 to 5992) |
| Low risk women without complicating conditions | |||
| Cost difference (95% CI) | −504 (−535 to −474) | −150 (−187 to −116) | −69 (−105 to −36) |
| Difference in normal birth* (95% CI) | 0.266 (0.256 to 0.275) | 0.218 (0.207 to 0.229) | 0.149 (0.138 to 0.160) |
| Mean ICER (95% CI) | −1897 (−1985 to −1812) | −689 (−823 to −538) | −464 (−685 to −254) |
| Quadrant on cost effectiveness plane | South east | South east | South east |
| Mean net benefit (95% CI)† | 5822 (5612 to 6036) | 4507 (4285 to 4766) | 3042 (2812 to 3307) |
| Mean net benefit (95% CI)‡ | 8483 (8178 to 8788) | 6688 (6367 to 7057) | 4526 (4188 to 4911) |
*Normal birth defined by Maternity Care Working Party as birth without any of induction of labour; epidural or spinal analgesia; general anaesthetic; episiotomy; forceps, ventouse, or caesarean section.
†Estimated at £20 000 cost effectiveness threshold.
‡Estimated at £30 000 cost effectiveness threshold.