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. 2015 Aug 31;10(8):e0136856. doi: 10.1371/journal.pone.0136856

Table 2. Induction to delivery interval and mode of delivery.

30-mL/12h (n = 121) 30-mL/24h (n = 124) 80-mL/12h (n = 125) 80-mL/24h (n = 125) p
Vaginal delivery within 24 hours (h) n (%) 66(54.5) 41(33.1) 58(46.4) 30(24.0) < 0.001
Time to delivery (h) (median [IQR]) 22.9 (19.5–33.0) 29.2 (20.6–41.2)  23.8 (18.0–30.5)  29.5 (24.2–37.7) < 0.001
Time to active phase (h) (median [IQR])* 19.0 (16.5–23.0) 22.7 (14.5–31.3) 19.0 (15.3–23.3) 25.5 (17.2–31.3) < 0.001
Time to vaginal delivery (h) (median [IQR])* 22.5 (19.1–27.7) 25.6 (18.2–34.8) 21.5 (17.3–28.5) 28.8 (21.6–35.9) 0.001
Mode of delivery n (%)       0.621
Spontaneous 104 (86.0) 95 (76.6) 98 (78.4) 98 (78.4)
Vaginal instrumental 3 (2.4) 3 (2.4) 3 (2.4) 3 (2.4)
Cesarean section 14 (11.6) 26 (21.0) 24 (19.2) 24 (19.2)
Indications for Cesarean section n (%) 0.514
    Failed induction 7 (50.0) 10 (38.5) 6 (25.0) 12 (50.0)
    Failure to progress 5 (35.7) 11 (42.3) 15 (62.5) 10 (41.6)
    Fetal distress 1 (7.1) 2 (7.7) 0 (0.0) 0 (0.0)
    Chorioamionitis 1 (7.1) 3 (11.5) 3 (12.5) 2 (8.3)
Indications for vaginal instrumental delivery n (%) 0.721
    Failure to progress 3 (100.0) 2 (66.7) 2 (66.7) 2 (66.7)
    Fetal distress 0 (0.0) 1 (33.3) 1 (33.3) 1(33.3)
Oxytocin use n (%) 106 (87.6) 109 (87.9) 108 (86.4) 113 (90.4) 0.800
Epidural analgesia n (%) 24 (19.8) 26 (21.0) 15 (12.0) 23 (18.4) 0.251

* Excluding cesarean deliveries.