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. 2022 Feb;76(1):39–44. doi: 10.5455/medarh.2022.76.39-44

Table 4. Factors Associated with Cesarean Section (CS).

Variables Vaginal delivery CS p RR (95% CI)
Maternal Age 28.0 (4.8) 27.7 (3.2) > 0.05
Parity – n (%)
Nulliparous 38 (56.7) 29 (43.3) 0.001 3.8 (1.4–9.9)
Multiparous 31 (88.6) 4 (11.4)
Gestational age – n (%)
< 40/ 30 (71.4) 12 (28.6) > 0.05
≥ 40/ 39 (65.0) 21 (35.0)
Bishop score
Mean 4.09 (0.74) 3.97 (0.73) > 0.05
Bishop 3 (n=25) – n (%) 16 (64.0) 9 (36.0) > 0.05
Bishop 4 (n=47) – n (%) 31 (66.0) 16 (34.0)
Bishop 5 (n=30) – n (%) 22 (73.3) 8 (26.7)
Neonatal weight
Mean 3234.1(244.4) 3154.6 (272.2) > 0.05
< 3000 (n=17) 8 (47.1) 9 (52.9) > 0.05
3000–3499 (n=67) 49 (73.1) 18 (26.9)
≥ 3500 (n=18) 12 (66.7) 6 (33.3)
Epidural analgesia – no. (%)
No 18 (50.0) 18 (50.0) 0.005 2.2 (1.3–3.8)
Yes 51 (77.3) 15 (22.7)
Time from induction to active labor in hours (n = 92) 9.0 (5.2) 14.0 (7.0) 0.0022