Table 6.
Cycle cancellation rates by risk group and estradiol exposure duration.
| Risk groups | Short (8–9 days) exposure | Intermediate (10–11 days) exposure | Prolonged (12–14 days) exposure | Overall |
|---|---|---|---|---|
| DOR | 13/133 9.8% (5.3-16.1) | 18/96 18.8% (11.5-28) | 6/31 19.4% (7.5-37.5) | 37/260 14.2% (10.2-19.1) |
| NNS | 10 (6-19) | 5 (4-9) | 5 (3-13) | 7 (5-10) |
| Age >37 | 6/77 7.8% (2.9-16.2) | 9/47 19.1% (9.1-33.3) | 5/18 27.8% (9.7-53.5) | 20/142 14.1% (8.8-20.9) |
| NNS | 13 (6-34) | 5 (3-11) | 4 (2-10) | 7 (5-11) |
| DOR + Age >37 | 6/42 14.3% (5.4-28.5) | 9/29 31.0% (15.3-50.8) | 4/8 50.0% (15.7-84.3) | 19/79 24.1% (15.1-35) |
| NNS | 7 (4-18) | 3 (2-7) | 2 (1-6) | 4 (3-7) |
| Normal reserve | 7/468 1.5% (0.6-3.1) | 9/346 2.6% (1.2-4.9) | 9/142 6.3% (2.9-11.7) | 25/956 2.6% (1.7-3.8) |
| NNS | 67 (33-166) | 38 (20-84) | 16 (9-34) | 38 (26-59) |
| PCOS | 1/379 0.3.% (0.0-1.5) | 2/304 0.7% (0.1-2.4) | 1/102 1.0% (0.0-5.3) | 4/785 0.5% (0.1-1.3) |
| NNS | 379 (68-14970) | 152 (42-1254) | 102 (19-4029) | 196 (77-719) |
Values are presented as n/N, percentages (95% CI), or estimates (95% CI).
NNS, number needed to screen to detect one progesterone-related cancellation.
DOR, diminished ovarian reserve; PCOS, polycystic ovary syndrome.