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Table 4 Subanalysis of serum hormone concentrations and endometrial thickness one week after FET.

From: Assessment of endometrial and ovarian characteristics using three dimensional power Doppler ultrasound to predict response in frozen embryo transfer cycles

  Pregnant (n = 12) P Pregnant, hCG positive (n = 6) P Pregnant, hCG negative (n = 6) P Nonpregnant (n = 14) P
P1 25,1 ± 3,3 0.002 24,2 ± 6,5 0.005 26,0 ± 2,4 0.028 48,7 ± 13,3 0.041
P2 174,5 ± 8,0   121,2 ± 23,9   227,8 ± 136,5   92,3 ± 18,3  
17-OHP1 9,0 ± 0,5 0.015 9,2 ± 0,8 0.046 8,8 ± 10,5 0.249 9,9 ± 0,8 0.300
17-OHP2 15,1 ± 2,1   16,9 ± 2,6   13,2 ± 3,3   8,3 ± 1,3  
Endometrial thickness 1 (mm) 11,2 ± 0,4 0.006 11,4 ± 0,8 0.028 10,9 ± 0,2 0.075 11,2 ± 0,8 0.132
Endometrial thickness 2 (mm) 12,5 ± 0,6   12,3 ± 1,0   12,7 ± 0,9   10,5 ± 0,6  
  1. P, progesterone; 17-OHP, 17-hydroxyprogesterone; Values are mean ± SEM or n (%).
  2. Index 1 = measurements on the day of FET, Index 2 = one week later, at the time of second visit.
  3. P-values of the longitudinal comparison confront the characteristics on the day of FET and on the day of the second visit.