Table 3. The pregnancy outcomes of the patients in two groups after PSM.
| Outcomes | Before PSM (n=1,110) | After PSM (n=346) | |||||
|---|---|---|---|---|---|---|---|
| Fresh-Embryo group (n=632) | Frozen-Embryo group (n=478) | P value | Fresh-Embryo group (n=173) | Frozen-Embryo group (n=173) | P value | ||
| Live birth rate, n (%) | 116 (18.4) | 148 (31.0) | <0.001*** | 34 (19.7) | 53 (30.6) | 0.019* | |
| Clinical pregnancy rate, n (%) | 167 (26.4) | 191 (40.0) | <0.001*** | 44 (25.4) | 67 (38.7) | 0.008** | |
| Biochemical pregnancy rate, n (%) | 208 (32.9) | 221 (46.2) | <0.001*** | 55 (31.8) | 77 (44.5) | 0.020* | |
Values are presented as mean ± standard deviation or n (%). *, P<0.05; **, P<0.01; ***, P<0.001. P>0.05, not significant. PSM, propensity score matching.