Table II.

Perinatal outcomes for women receiving 17P, presented by randomization group. Adjusted odds ratios (aOR) are obtained from logistic regression models adjusting for GA at randomization and GA at first recorded 17P dose.

Outcome	Cerclage (n = 47)	No Cerclage (n = 52)	OR (95% CI)	aOR (95% CI)
PTB < 37 weeks	23 (49)	31 (60)	0.65 (0.29 – 1.44)	0.62 (0.27 – 1.41)
PTB < 35 weeks	14 (30)	20 (38)	0.68 (0.29 – 1.57)	0.64 (0.27 – 1.52)
PTB < 32 weeks	8 (17)	11 (21)	0.77 (0.28 – 2.10)	0.63 (0.22 – 1.81)
PTB < 28 weeks	4 (9)	8 (15)	0.51 (0.14 – 1.83)	0.46 (0.12 – 1.70)
Previable birth < 24 weeks	2 (4)	1 (2)	2.27 (0.20 – 25.8)	1.92 (0.15 – 25.3)
Perinatal death	3 (6)	2 (4)	1.67 (0.27 – 10.4)	1.44 (0.22 – 9.67)

Data presented as n (%)