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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Urology. 2015 Feb 16;85(4):809–813. doi: 10.1016/j.urology.2014.09.005

Figure 2.

Figure 2

Association between the presence of sperm in the vasal fluid during vasectomy reversal and postoperative patency in identified retrospective studies. The summary estimate was calculated using a random effects model. Exponentiation of the pooled log(OR) plotted above yielded an unadjusted OR of 4.1 (95% CI: 2.3 to 7.3). The pooled log(OR) calculated using a fixed effect model was 1.5 (95% CI: 1.1 to 1.9) with a corresponding OR of 4.3 (95% CI: 2.9 to 6.4). Assessment of heterogeneity: Q = 3.4, df = 5, p = 0.6, I2 = 22%. CI = confidence interval, OR = odds ratio, P = patent.