Table 1.
Patient and cycle characteristics by ART outcome
| Variable | Clinical pregnancy (n = 115) | Not pregnant (n = 175) | P-value |
|---|---|---|---|
| Female Age, years | 34.5 (4.4) | 35.2 (4.4) | 0.16a |
| Primary infertility, % | 33.0 (38) | 43.4 (76) | 0.07b |
| Nulliparity, % | 35.7 (41) | 31.4 (55) | 0.45b |
| First ART cycle, % | 59.1 (68) | 45.1 (79) | 0.47b |
| FSH, mIU/ml | 7.5 (2.6) | 7.5 (2.7) | 0.89 |
| Female BMI, kg/m2 | 25.5 (5.4) | 26.0 (5.9) | 0.48 |
| Male BMI, kg/m2 | 27.4 (4.1) | 28.6 (4.3) | 0.02a d |
| GnRH agonist luteal suppression, % | 80.9 (93) | 74.3 (130) | 0.19 b |
| Oocytes retrieved | 12 (8–17) | 11 (7–16) | 0.14a |
| ICSI, % | 72 (83/115) | 75 (126/167) | 0.53 b |
| Embryos available on Day 3 | 6 (3–9) | 4 (2–7) | <0.01 c b |
| Embryos transferred | 2.6 (0.8) | 2.3 (1.0) | <0.01a d |
Continuous variables are presented as mean (standard deviation) if normally distributed or median (interquartile range) if skewed. Categorical variables are presented as percent (n)
aStudent Test
bChi square
cMann-Whitney
dDenotes statistical significance