Optimizing hCG cut-off values: a single determination on day 14 or 15 is sufficient for a reliable prediction of pregnancy outcome.


OBJECTIVE Optimizing the cut-off level for a single serum hCG determination around day 15 after oocyte retrieval or ovulation. STUDY DESIGN Retrospective data analysis. RESULTS 204 hCG samples >5 IU/L between March and October 1999 taken on day 14, 15 or 16 after oocyte retrieval in 204 patients undergoing IVF or ICSI were analyzed. ROC-curves and… (More)


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