Table 1 Demographic characteristics of women in the growth hormone and control groups
Characteristic | Before propensity score matching | After propensity score matching | ||||
|---|---|---|---|---|---|---|
Growth hormone (n = 1,326) | Control (n = 1,717) | P value | Growth hormone (n = 694) | Control (n = 694) | P value | |
Female age (y) | 32.3 ± 4.7 | 34.6 ± 5.8 | < 0.001 | 33.0 ± 4.8 | 33.0 ± 4.8 | 0.99 |
AFC | 10.5 ± 5.8 | 6.9 ± 5.3 | < 0.001 | 8.5 ± 5.1 | 8.5 ± 5.1 | 0.99 |
Male age (y) | 33.9 ± 5.1 | 36.6 ± 6.5 | < 0.001 | 34.6 ± 5.3 | 35.1 ± 5.4 | 0.08 |
Basal FSH (IU/L) | 8.8 ± 5.8 | 10.8 ± 7.5 | < 0.001 | 9.2 ± 6.2 | 9.9 ± 6.5 | 0.12 |
BMI (kg/m2) | 22.5 ± 3.2 | 22.7 ± 3.2 | 0.11 | 22.5 ± 3.2 | 22.6 ± 3.3 | 0.31 |
Infertility duration (y) | 4.0 ± 2.9 | 4.0 ± 3.4 | 0.05 | 4.0 ± 2.9 | 4.0 ± 3.1 | 0.89 |
Primary infertility | 665 (50.2%) | 745 (43.4%) | < 0.001 | 334 (48.1%) | 331 (47.7%) | 0.87 |
Oocytes retrieved previous cycle | 5.9 ± 4.4 | 5.5 ± 3.6 | 0.44 | 5.8 ± 4.1 | 5.9 ± 4.1 | 0.69 |
Embryo quality in previous cycle | < 0.001 | 0.99 | ||||
Grade III only | 39 (2.9%) | 248 (14.5%) | 17 (2.4%) | 17 (2.4%) | ||
Grade III + IV | 995 (75.0%) | 831 (48.4%) | 179 (25.8%) | 179 (25.8%) | ||
Grade IV only | 292 (22.0%) | 637 (37.1%) | 498 (71.8%) | 498 (71.8%) | ||