Urinary Luteinizing Hormone Tests: Which Concentration Threshold Best Predicts Ovulation?

ABSTRACT:

Objective

To study the best possible luteinizing hormone (LH) threshold to predict ovulation within the 24, 48, and 72 h.

Design

Observational study.

Setting

Multicenter collaborative study.

Patients

A total of 107 women.

Interventions

Women collected daily first morning urine for hormonal assessment and underwent serial ovarian ultrasound. This is a secondary analysis of 283 cycles.

Main outcome measures

The sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios were estimated for varying ranges of LH thresholds. Receiver operating characteristic curves and cost-benefit ratios were used to estimate the best thresholds to predict ovulation.

Results

The best scenario to predict ovulatio

SUBMITTER: Leiva RA 

PROVIDER: S-EPMC5712333 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature