Table 2.
Obstetrical characteristics of women and fetus at inclusion
| Disposable cup group (n = 295) | Metallic cup group (n = 283) | |
|---|---|---|
| Instrumental indication | ||
| Abnormal fetal heart rate pattern | 154 (52.2 %) | 166 (58.7 %) |
| No progress of the presentation (arrest of descent in active part of second stage) | 220 (74.6 %) | 200 (70.7 %) |
| Maternal indicationsb | 23 (7.8 %) | 29 (10.3 %) |
| Station of vertex at cup application | n = 286 | n = 273 |
| Outlet (+3, +4) | 57 (19.3 %) | 50 (17.7 %) |
| Low (+2) | 229 (77.6 %) | 223 (78.8 %) |
| Position of application of cup | n = 295 | n = 282 |
| LOA (Left Occipital Anterior) | 110 (37.3 %) | 111 (39.4 %) |
| ROA (Right Occipital Anterior) | 76 (25.8 %) | 64 (22.7 %) |
| OA (Occipital Anterior) | 55 (18.64 %) | 52 (18.4 %) |
| ROP (Right Occipital Posterior) | 25 (8.5 %) | 23 (8.2 %) |
| Others (OT, LOP, OP)a | 29 (9.8 %) | 32 (11.4 %) |
| Position at delivery | n = 286 | n = 278 |
| Occipital-anterior | 267 (93.4 %) | 257 (92.5 %) |
| Occipital-posterior | 19 (6.6 %) | 21 (7.6 %) |
| Duration of labor from 4 cm of dilation to delivery (hour, mean ± SD) | n = 292 | n = 282 |
| 6.7 ± 2.6 | 6.5 ± 2.9 |
a OT Occipital Transverse, LOP Left Occipital Posterior, OP Occipital Posterior
bAssistance with delivery for women with uterine scarring or a maternal disorder (eclampsia, pre-eclampsia, cardiac pathology, respiratory difficulty, para or tetraplegia, cerebral aneurism, retinopathy etc.)