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Use of Sperm Parameters to Predict Clinical Pregnancy with Intrauterine Insemination
The Journal of Reproductive Medicine
|July 19, 2016
Summary
Sperm morphology is the best predictor of clinical pregnancy (CP) in intrauterine insemination (IUI). Optimal results occur when both morphology and motility exceed established thresholds, enhancing IUI success rates.
Area of Science:
- Reproductive Medicine
- Sperm Analysis
- Intrauterine Insemination
Background:
- Intrauterine insemination (IUI) is a common fertility treatment.
- Predicting clinical pregnancy (CP) in IUI cycles is crucial for patient counseling and treatment optimization.
- The role of sperm morphology as a predictor of IUI success requires further investigation.
Purpose of the Study:
- To evaluate sperm morphology as the primary predictor of clinical pregnancy (CP) in intrauterine insemination (IUI).
- To establish optimal threshold values for sperm parameters in IUI cycles.
Main Methods:
- Retrospective analysis of 1,027 IUI cycles from 527 couples.
- Univariate and multivariate analyses to identify predictors of CP.
- Logistic regression and ROC curve analysis to determine optimal semen parameter thresholds.
Main Results:
- Clinical pregnancy (CP) rates were 12.9% per cycle and 23.3% by the third cycle.
- Sperm morphology was the most significant predictor of CP in IUI.
- Optimal threshold values for CP were identified as 16% morphology and 69% motility.
Conclusions:
- Sperm morphology is the best predictor of clinical pregnancy (CP) in IUI.
- Achieving optimal IUI success requires sperm parameters, including morphology and motility, to exceed established thresholds.

