| Table 2. Sample Characteristics by Subgroups | ||||||||
| Variable | Category | Natural | Artificial | p value | ||||
|---|---|---|---|---|---|---|---|---|
| Combined | Vaginal | Oral | Combined | Vaginal | Oral | |||
| Age | 38.3 (4.35) | 38.6 (3.27) | 38.2 (3.27) | 39.0 (3.04) | 38.9 (3.62) | 39.2 (3.75) | 0.836 | |
| BMI | 24.4 (3.40) | 25.0 (4.11) | 23.3 (3.39) | 24.1 (3.85) | 25.2 (5.95) | 25.5 (4.17) | 0.175 | |
| Birth weight | 3255 (372) | 3203 (474) | 3000 (455) | 3338 (556) | 3278 (451) | 3320 (266) | 0.404 | |
| Embryo stage | 4 | - | 4 (1.3) | 8 (2.7) | - | - | - | 0.003 |
| 5 | 15 (5.0) | 114 (38.1) | 33 (11.0) | 22 (7.4) | 39 (13.0) | 15 (5.0) | ||
| 6 | - | 23 (7.7) | 5 (1.7) | 2 (0.7) | 14 (4.7) | 5 (1.7) | ||
| Endometriosis | Yes | 1 (0.3) | 10 (3.4) | 2 (0.7) | 4 (1.4) | 6 (2.0) | 1 (0.3) | 0.479 |
Note: Continuous data (age. BMI. and neonatal weight) are expressed as mean ± standard deviation (ANOVA).
Categorical data are expressed as frequencies and percentages (chi-square test).
The p-value in bold indicates a statistically significant difference between the groups