Table 4.

Comparison of frequency of gestational age at delivery in 2 study groups

Variable	Nif + SC	Nif	P-value	OR (95% CI)
Delivery in 24 hr	3 (4.8)	5 (7.9) $\ne$	0.71	1.7 (0.4-7.5)
Delivery in 48 hr	3 (4.8)	4 (6.3) $\ne$	1.00	1.3 (0.3-6.3)
Delivery in 72 hr	2 (3.2)	4 (6.3) $\ne$	0.68	2.1 (0.4-11.7)
Un delivery	55 (87.3)	50 (79.4)*	0.23	0.6 (0.2-1.7)
Data presented as n (%). *Chi-square, $\ne$ Fisher's exact, Nif: Nifedipine, SC: Sildenafil, OR: Odds ratio, CI: Confidence interval