A Prospective Randomized Trial Comparing Urinary Luteinizing Hormone and Basal Body Temperature Graphs for Timed Sexual Intercourse in Unexplained lnfertility

Abstract

Objective To investigate the influence of simple methods for timed sexual intercourse in natural menstrual cycles between the two groups of patients with unexplained infertility.
Group 1 : timed sexual intercourse by conventional basal body temperature graphs.
Group 2 : timed sexual intercourse by urinary luteinizing hormone or urine LH home kit.
Subjects A total of 77 couples with unexplained infertility more than 2 years' duration
who attended the infertility clinic for the investigation and treatment of infertility.
Main outcome measures Number of conceptions and monthly fecundability rates.
Resutts Patients in group 1, of the 39 patients with 194 cycles of follow up who timed
sexual intercourse using BBT graphs, 12 (30.77%) conceived which gave the
monthly fecundability rate of 0.06. ln group 2, of the 38 patients with 183 cycles of
follow up using urine LH home kit 20 (52.63%) conceived. The monthly fecundability rate was 0.11. The monthly fecundability rates between these two groups
were not statistically significant.

Conclusion This prospective randomized study demonstrated using urine LH home kit for timed sexual intercourse had the trend for higher monthly fecundability
rate comparing to BBT graphs and it would require a larger sample size to explore
a significant difference.