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. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Fertil Steril. 2011 Dec;96(6):1299–1305. doi: 10.1016/j.fertnstert.2011.10.025

Table 1. Recent Prospective Randomized Varicocelectomy Trials.

Prospective Study Screened Chose Assisted Reproduction Randomized (% enrolled) Drop out Intervention/Control
Nilson 1979 (27) 165 N/A 96 (58%) N/A N/A
Breznik 1993 (28) 96 N/A 79 (82%) N/A 38/41
Madgar 1995 (29) 57 N/A 45 (79%) N/A 25/20
Nieschlag 1998 (30) 226 23 (10%) 203 (90%) 78 (38%) 62/63
Yamamoto 1996 (31) 92 N/A 92 (100%) 7 (8%) 45/40
Abdel-Meguid 2011 (3) 251 N/A 150 (60%) 5 (0.03%) 73/72
Current Trial 7 1 (14%) 3 (43%) 1 (33%) 0/3

Not available = N/A