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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Am J Obstet Gynecol. 2012 Sep 17;207(5):390.e1–390.e8. doi: 10.1016/j.ajog.2012.09.013

Table 2.

Maternal outcomes and interventions stratified by treatment group

17-OHP
(N = 327)
Placebo
(N = 330)
RR (95% CI)
Delivery < 37 weeks 82/327 (25.1) 80/330 (24.2) 1.03 (0.79 – 1.35)
   Spontaneous 54/327 (16.5) 55/330 (16.7) 0.99 (0.70 – 1.40)
   Medically indicated 27/327 (8.3) 25/330 (7.6) 1.09 (0.65 – 1.84)
   Fetal loss/abortion < 20 weeks 1/327 (0.3) 0/330 --
Gestational age at delivery (weeks) 37.6 ± 3.9 37.4 ± 4.3 P = 0.93
Preterm premature rupture of membranes 25/327 (7.6) 24/330 (7.3) 1.05 (0.61 – 1.80)
Delivery < 35 weeks 44/327 (13.5) 53/330 (16.1) 0.84 (0.58 – 1.21)
Delivery < 32 weeks 28/327 (8.6) 32/330 (9.7) 0.88 (0.54 – 1.43)
Delivery < 28 weeks 15/327 (4.6) 22/330 (6.7) 0.69 (0.36 – 1.30)
Hospital visit for preterm labor 145/327 (44.3) 151/330 (45.8) 0.97 (0.82 – 1.15)
Tocolytic therapy 35/321 (10.9) 42/325 (12.9) 0.84 (0.55 – 1.29)
Corticosteroid therapy 55/321 (17.1) 51/325 (15.7) 1.09 (0.77 – 1.55)
Cerclage placement 6/321 (1.9) 4/325 (1.2) 1.52 (0.43 – 5.33)
Gestational hypertension or preeclampsia 46/327 (14.1) 40/329 (12.2) 1.16 (0.78 – 1.72)
Gestational diabetes mellitus 15/327 (4.6) 13/330 (3.9) 1.16 (0.56 – 2.41)
Cholestasis 1/327 (0.3) 0/329 --
Placental abruption 11/327 (3.4) 15/328 (4.6) 0.74 (0.34 – 1.58)
Chorioamnionitis 29/327 (8.9) 20/328 (6.1) 1.45 (0.84 – 2.52)
Cesarean delivery 67/327 (20.5) 63/329 (19.1) 1.07 (0.79 – 1.46)
Side effects
   Any 223/326 (68.4) 220/328 (67.1) 1.02 (0.92 – 1.13)
   Injection site 217/326 (66.6) 209/328 (63.7) 1.04 (0.93 – 1.17)
   Urticaria 10/326 (3.1) 2/328 (0.6) 5.03 (1.11 – 22.78)
   Nausea 7/326 (2.1) 10/328 (3.0) 0.70 (0.27 – 1.83)

Data are presented as mean ± standard deviation or n/N (%)