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) |
1Last day during a menstrual cycle when a woman observed any of the three fertile-type cervical fluid characteristics.
2Last day during a menstrual cycle when a woman observed the most number of fertile-type cervical fluid characteristics.