. Author manuscript; available in PMC: 2013 Nov 1.

Published in final edited form as: Birth Defects Res A Clin Mol Teratol. 2012 Oct 18;94(11):900–907. doi: 10.1002/bdra.23075

Table 4.

Variables remaining in multivariable regression models of congenital cryptorchidism

Variable	All Adjusted OR^# (95% CI)	Full term, non-SGA Adjusted OR^# (95% CI)	Caucasian only Adjusted OR^# (95% CI)
Age	0.8 (0.7, 0.9)	0.8 (0.7, 0.9)	0.8 (0.7, 0.9)
Race
• Caucasian	1.0 (reference)	1.0 (reference)	-
• African American	0.5 (0.3, 0.8)	0.4 (0.2, 0.7)	-
• Asian	1.2 (0.4, 3.7)	1.1 (0.4, 3.4)	-
• Other/Mixed	0.6 (0.3, 1.4)	0.5 (0.2, 1.1)	-
Cryptorchidism in first- degree relative	4.5 (1.4, 14.3)	5.3 (1.5, 19.8)	4.2 (1.1, 15.9)
Persistent nausea and/or vomiting	2.5 (1.3, 4.7)	3.0 (1.5, 6.2)	2.3 (1.0, 5.1)
Prior miscarriage or stillbirth	1.6 (0.3, 1.0)	-	0.5 (0.3, 1.1)
C-section	0.6 (0.3, 1.0)	-	0.5 (0.3, 1.1)

SGA: small for gestational age

OR, odds ratio; CI, confidence interval; Variables in each model: age, race (except Caucasian only model), primiparity, prior miscarriage or stillbirth, cryptorchidism in 1^st-degree relative; premature labor or persistent nausea/vomiting in index pregnancy and delivery (vaginal or C-section).