Table 2.
Cycle outcomes for lesbian and heterosexual patients.
| Outcome | Lesbian N = 393 | Heterosexual N = 11,477 | ASDa |
|---|---|---|---|
| Positive βhCG result, n (%) | 58 (14.8) | 1,396 (12.2) | 0.08 |
| Clinical pregnancy, n (%) | 52 (13.2) | 1,279 (11.1) | 0.06 |
| Live birth/ongoing pregnancy, n (%) | 41 (10.4) | 939 (8.3%) | 0.10 |
| Biochemical miscarriage, n (%) | 5 (1.3) | 95 (0.8) | 0.07 |
| Clinical miscarriage, n (%) | 8 (15.4) | 305 (23.8) | 0.21 |
| Ectopic pregnancy, n (%) | 1 (0.3) | 22 (0.2) | 0.01 |
Note: ASD = absolute standardized difference; βhCG = beta human chorionic gonadotropin.
a
ASD calculated between heterosexual and lesbian groups; this represents the difference in means or proportions between the two groups divided by the pooled standard deviation. 0.2, 0.5, and 0.8 correspond to small, medium, and large differences respectively. Therefore, smaller standardized differences represent less difference between the two groups.