Table 1 Comparison by three groups of mode of delivery groups for the second twin: elective cesarean section ECS, unplanned cesarean section UPC and vaginal delivery VD
From: Delivery of the second twin: influence of presentation on neonatal outcome, a case controlled study
planned C-section (ECS) n = 277 | Unplanned C-Section (UPC) n = 233 | Vaginal delivery (VD) n = 207 | P-values (ECS vs. UPC, ECS vs. VD, UPC vs. VD) | |
|---|---|---|---|---|
Age of the mother (years) | 32 ± 5.0 | 31.5 ± 5.7 | 31.4 ± 4.9 | ns. (p = 0.43) |
Gestational age (weeks) | 35.8 ± 1.6 | 35.0 ± 1.9 | 36.2 ± 1.7 | < 0.001, 0.012, < 0.001 |
Parity n | 1.6 ± 0.9 | 1.5 ± 0.9 | 2.0 ± 1.0 | 0.82, < 0.001, < 0.001 |
Gender m/f (%) | 118/159 (42.6/53.4) | 110/123 (47.2/52.8) | 100/107 (48.3/51.7) | ns. |
Chorionicity M/D (%) | 64/211 (23.1/76.9) | 49/183 (21.0/79.0) | 44/137 (21.2/78.8) | ns. |
Previous C-section | 18 (6,5%) | 9 (3.9%) | 0 | |
Presentation: | ||||
Vertex | 142 (51.3%) | 125 (53.6%) | 153 (73.9%) | < 0.001 |
Breech | 75 (27.1%) | 59 (25.3%) | 54 (26.1%) | |
Transverse | 51 (18.4%) | 45 (19.3%) | ||
Not applicable | 9 | 4 | ||
Lung maturation | 55 (19.9%) | 35 (15.0%) | 16 (7.7%) | 0.001 |
Induction of labor | 4 (1.4%) | 40 (17.2%) | 99 (47.8%) | < 0.001 |