PEDIATRICS Vol. 98 No. 4 October 1996, pp. 676-679
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Paternity After Unilateral Cryptorchidism: A Controlled Study

Peter A. Lee MD, PhD1, Leslie A. O'Leary PhD2, Nancy J. Songer BSN, MS1, Michael T. Coughlin MA2, Mark F. Bellinger MD3, and Ronald E. LaPorte PhD2

1 Department of pediatrics, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh
2 Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh
3 Department of Surgery, University of Pittsburgh School of Medicine, Children's Hospital of Pittsburgh

Address correspondence to: Peter A. Lee, MD, PhD, Children's Hospital of Pittsburgh, 3705 Fifth Aye, Pittsburgh, PA 15213-2583

Objective. To determine if paternity is decreased among formerly unilateral cryptorchid men compared with a control group of men.

Subjects and Methods. Formerly unilateral cryptorchid men who had orchiopexy between 1955 and 1971 at the Children's Hospital of Pittsburgh and a group of control men have had their medical records reviewed and have been surveyed by questionnaire.

Results. Among the men who had ever married and had attempted paternity, significantly more of the unilateral cryptorchid men had been unable to father children (10.5%) than among the control group (5.4%). No difference was found when the groups were compared for the duration of regular intercourse without contraception to conception of their first child. There was no relationship between the age of orchiopexy or lifestyle factors and paternity or between the age of orchiopexy and months of regular unprotected intercourse to conception. Paternity among both groups was related to femalerelated infertility factors and to the presence of vericoceles.

Conclusion. When compared with a control group, paternity was compromised after unilateral cryptorchidism. Infertility is about twice as frequent among the unilateral group. There was no evidence of subfertility requiring a longer exposure of regular intercourse without contraception among the fertile subgroup. No correlation was found between age of orchiopexy and paternity.

Submitted on October 20, 1995
Accepted on November 27, 1995




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