Table 3 Sensitivity of peak day method for determining estimated day of ovulation compared to Clearblue® Easy fertility monitor in 26 cycles
Exact day | ≤1 day | ≤ 2 days | ≤ 3 days | >3 days | |
|---|---|---|---|---|---|
n (%) | n (%) | n (%) | n (%) | ||
“Last fertile sign1” algorithm including seven days prior to menses | 4 (15) | 13 (50) | 18 (69) | 18 (69) | 8 (31) |
“Last fertile sign1” algorithm excluding seven days prior to menses | 5 (19) | 14 (54) | 20 (77) | 20 (77) | 6 (23) |
“Best quality2” algorithm including seven days prior to menses | 5 (19) | 17 (65) | 23 (88) | 24 (92) | 2 (8) |
“Best quality2” algorithm excluding seven days prior to menses | 5 (19) | 17 (65) | 23 (88) | 24 (92) | 2 (8) |