| Univariate logistic regression analysis | Multivariate logistic regression analysis | ||||||
---|---|---|---|---|---|---|---|---|
OR | 95% CI | P-value | AUC | aOR | 95% CI | P-value | AUC | |
Female age | 0.832 | 0.796–0.868 | < 0.0001 | 0.704 | 0.827 | 0.778–0.878 | <  0.0001 | 0.732 |
Male age | 0.930 | 0.901–0.959 | < 0.0001 | 0.611 | 1.018 | 0.978–1.060 | 0.3681 |  |
Ovarian stimulation | Â | Â | Â | 0.594 | Â | Â | Â | Â |
 Natural | Reference | – |  |  | Reference | – |  |  |
 Clomiphene citrate | 0.401 | 0.263–0.618 | < 0.0001 |  | 0.732 | 0.455–1.177 | 0.1979 |  |
 Letrozole | 1.250 | 0.657–2.360 | 0.4938 |  | 1.046 | 0.526–2.077 | 0.8987 |  |
Insemination method | Â | Â | Â | 0.506 | Â | Â | Â | Â |
 cIVF | Reference | – |  |  | Reference | – |  |  |
 ICSI | 0.943 | 0.666–1.347 | 0.7472 |  | 0.927 | 0.629–1.363 | 0.6990 |  |
Blastomere number | 1.081 | 0.986–1.185 | 0.0983 | 0.535 | 1.100 | 0.997–1.214 | 0.0575 |  |
Morphological grade | Â | Â | Â | 0.550 | Â | Â | Â | Â |
 1 | Reference | – | – |  | Reference | – | – |  |
 2 | 1.212 | 0.731–2.049 | 0.4587 |  | 1.509 | 0.867–2.625 | 0.1452 |  |
 3 | 0.986 | 0.618–1.614 | 0.9560 |  | 1.138 | 0.681–1.899 | 0.6214 |  |
 4 | 0.981 | 0.049–6.974 | 0.9869 |  | 0.754 | 0.103–5.734 | 0.1656 |  |
TI from tHa to tHd | 0.879 | 0.825–0.934 | < 0.0001 | 0.593 | 0.879 | 0.817–0.946 | 0.0004 |  |