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Table 1 Baseline Characteristics of Patients in Surveillance vs Standard Protocols

From: Measuring serum estradiol and progesterone one day prior to frozen embryo transfer improves live birth rates

 Surveillance protocol (N = 524)Standard protocol (N = 379)p-value
Mean Age (years)34.6 (+ 4.3)34.7 (+ 3.9)0.7
Mean BMI (kg/m2)25.3 (+ 5.3)25.0 (+ 5.3)0.13
Infertility Diagnosis (%)Unexplained – (25%)Unexplained – (23%)0.1
DOR – (6%)DOR – (8%)
Endometriosis – (3%)Endometriosis – (8%)
Ovulation disorders – (11%)Ovulation disorders – (10%)
Male factor – (21%)Male factor – (19%)
Othera – (34%)Othera – (32%)
PGT testing of embryo, n (%)167/524 (32%)52/379 (14%)< 0.001
Number of embryos transferred per cycle, n (%)1–351 (67%)1–194 (51%)< 0.001
2–168 (32%)2–174 (46%)
3–5 (1%)3–10 (3%)
Number of heartbeats, n (%)1–245 (76%)1–135 (80%)< 0.001
2–41 (13%)2–33 (19%)
3–4 (1%)3–0 (0%)
  1. a = Included patients with tubal factor, uterine factor and other as infertility diagnoses