Anti-Müllerian hormone is a predictor of medium-term cumulative live birth following in vitro fertilization/intracytoplasmic sperm injection: A retrospective study.

OBJECTIVES

This study aims to examine the capacity of anti-Müllerian hormone (AMH) to predict cumulative live birth rate (CLBR) following IVF/ICSI within 36 months since start of treatment.

STUDY

DESIGN

This is a cohort study of women seeking IVF/ICSI fertility treatment in a private Australian IVF clinic in a single calendar year. Live births were monitored over three years following start date of IVF/ICSI. The impact of serum AMH level on the CLBR was assessed using Cox's proportional hazard models, and its incremental values in the prediction of CLBR were evaluated.

RESULTS

The CLBRs were significantly higher in women with AMH levels in the highest (>44.5 pmol/L; 87.0%, 95% CI 79.2% - 95.1%) and in the middle two quartiles (between 11.5 and 44.5 pmol/L; 81.0%, 95% CI 74.2% - 87.6%), compared with AMH levels below the 25th percentile (≤11.5 pmol/L; 63.2%, 95% CI 53.2% - 74.5%). Approximately half of the women with AMH in the lowest quartile conceived a live birth within 12 months of starting IVF compared with two-thirds of the women in the upper three quartiles. After adjusting for confounders, AMH remained a significant, albeit slight predictor of CLBR with a fall of 3 pmol/L equating to an 1% decrease in CLBR. The AMH's added values into the prediction of live birth were slight, indicated by a net reclassification improvement of 13.8%. The value is lower than that of maternal age (35.1%).

CONCLUSIONS

Serum AMH level was a significant slight predictor of CLBR following IVF/ICSI. AMH should not be used to exclude women from IVF/ICSI however, women with low AMH should be counselled on the likelihood of taking longer to achieve a live birth than individuals with normal AMH levels.