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Table 2 Overall outcomes of group G and group GP before and after PS matching

From: Does the transfer of a poor quality embryo with a good quality embryo benefit poor prognosis patients?

  Before matching After matching
G (n = 4484) GP (n = 553) P G(n = 520) GP (n = 520) P
Clinical Pregnancy 2607 (58.1) 313 (56.6) 0.489 246 (47.3) 298 (57.3) 0.001
OR (95% CI) Ref 1.44 (1.18–1.76) < 0.001 Ref 1.51 (1.18–1.93) 0.001
Multiple pregnancy 74 (2.8) 96 (30.7) < 0.001 6 (2.4) 91 (30.5) < 0.001
OR (95% CI) Ref 18.56 (11.92–28.92) < 0.001 Ref 17.49 (7.49–40.81) < 0.001
Miscarriage 346 (13.3) 47 (15) 0.393 33 (13.4) 46 (15.4) 0.505
OR (95% CI) Ref 0.94 (0.64–1.36) 0.729 Ref 1.18 (0.73–1.9) 0.513
Live birth 2232 (49.8) 263 (47.6) 0.325 213 (41) 249 (47.9) 0.025
OR (95% CI) Ref 1.37 (1.11–1.68) 0.003 Ref 1.33 (1.04–1.7) 0.024
  1. Data are presented as n (%). Comparisons were made using chi-square test or Fisher’s exact test as appropriate
  2. ORs were adjusted for variables presented in Table 1 using multivariate GEE model before matching
  3. ORs after matching were adjusted for propensity score
  4. OR Odds ratio