When we considered only the first 2 cycles of treatment, the results were identical except for two couples in the IVF arm who discontinued treatment after the first IVF cycle.
a 25 couples chose to discontinue treatment after a median of 4.0 cycles (interquartile range, 3 to 5 cycles) over a median duration of 12.2 months (interquartile range, 8.8 to 17.4 months).
b The median duration of follow-up for these couples whom we were unable to contact was 18.3 months (interquartile range, 12.0 to 21.4 months) and was 17.5 months (interquartile range 12.3 to 21.9 months) among couples who completed follow-up.