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Table 8 Pregnancy outcome – Monotherapy vs Combination Protocol

From: The continuum of ovarian response leading to BIRTH, a real world study of ART in Spain

  All women Poor
Responders
Suboptimal responders Normal
Responders
Monotherapy
 Implantation rates 32.8% 25.0% 22.9% 35.7%
(Total number of sacs / Total number of embryos transferred) (79/241) (2/8) (11/48) (66/185)
 Clinical pregnancy rate 38.8% 27.3% 35.6% 40.4%
(Total clinical pregnancies / Total number of women with embryos transferred d) (100/258) (3/11) (21/59) (76/188)
Combination
 Implantation rates 21.7% 14.3% 22.2% 23.5%
  (Total number of sacs / Total number of embryos transferred) (75/345) (6/42) (38/171) (31/132)
 Clinical pregnancy rate 28.9% 21.9% 28.1% 31.7%
  (Total clinical pregnancies / Total number of women with embryos transferred) (83/287)) (7/32) (38/135) (38/120)
  1. Note: Means & percentages are based on the number of patients with non-missing data