The results suggest that if the chance of pregnancy after the use of a gradient technique is assumed to be 24%, the chance of pregnancy after using the swim‐up technique is between 14% and 30%. The main limitations were (unclear) risk of bias, signs of imprecision and inconsistency in results among studies and the small number of studies/participants included.Ĭonsidering the quality of evidence, we are uncertain whether there was a difference between clinical pregnancy rates (CPR) for swim‐up versus a gradient technique (odds ratio (OR) 0.83, 95% CI 0.51 to 1.35 I² = 71% 4 RCTs, 370 participants very low‐quality evidence).
No trials reported the primary outcome of live birth. We included seven RCTS in the review we included six of these, totalling 485 couples, in the meta‐analysis.
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