Research Article
Assessment of Bony Pelvis and Vaginally Assisted Deliveries
Table 2
Descriptive data of the patients subdivided according to the route of delivery and infant weight.
| Route of delivery | Inlet mm mean (SD) | Outlet mm mean (SD) | First stage of the delivery, minutes mean (SD) | Second stage of the delivery, minutes mean (SD) | Infant weight g mean (SD) | Apgar 1-minute mean (SD) |
| All () | 401 (22) | 361 (20) | 519 (284) | 50 (38) | 3750 (509) | 8.6 (1.1) | Spontaneous vaginal delivery () | 402 (22) | 362 (20) | 483 (282) | 40 (31) | 3750 (534) | 8.6 (0.95) | Operative vaginal delivery | 399 (21) | 357 (18) | 615 (280) | 94 (31) | 3760 (378) | 8.2 (1.4) | -value | 0.23 | 0.84 | 0.66 | <0.01 | 0.80 | 0.06 |
| Infant weight < 3700 g () | 392 (19) | 351 (17) | 521 (303) | 49 (33) | 3300 (291) | 8.5 (1.0) | Spontaneous vaginal delivery () | 391.5 (18) | 352 (17) | 515 (309) | 40 (29) | 3270 (302) | 8.7 (0.7) | Operative vaginal delivery () | 393 (19) | 347 (15) | 543 (282) | 85 (27) | 3430 (193) | 7.8 (1.8) | -value | 0.23 | 0.93 | 0.56 | 0.01 | 0.61 | <0.01 |
| Infant weight ≥ 3700 g () | 409 (20) | 370 (18) | 501 (267) | 51 (41) | 4120 (318) | 8.6 (1.1) | Spontaneous vaginal delivery () | 410 (20) | 370 (18) | 457.1 (256) | 40 (34) | 4130 (327) | 8.6 (1.1) | Operative vaginal delivery () | 402 (22) | 365.5 (16) | 675 (270) | 102 (32) | 4030 (259) | 8.6 (0.9) | -value | 0.37 | 0.31 | 0.65 | <0.01 | 0.78 | 0.82 |
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SD: standard deviation.
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