Table 2.
Association between paternal age and reproductive outcomes after adjusting for female age.
| Variable | Male age category, y |
||
|---|---|---|---|
| Age <40 | Age ≥40 | P value | |
| Positive hCG rate | 1.06 (0.86–1.30) | .57 | |
| Delivery rate | 1.12 (0.94–1.32) | .19 | |
| Biochemical loss rate | Reference | 0.74 (0.55–1.00) | .05 |
| Clinical loss rate | 1.08 (0.80–1.46) | .61 | |
| Fertilization rate | 0.21 (0.56) | .70 | |
| Blastulation rate | −3.01 (0.91) | <.01 | |
| Euploid rate | −2.08 (0.94) | .03 | |
Note: Data presented as odds ratio (95% confidence interval) or beta value (standard error), unless stated otherwise. Statistical analysis was performed using logistic and linear regression models. hCG = human chorionic gonadotropin.