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Table 3 Comparison between: Group 1 (patients with P  1.0 ng/ml), Group 2 (patients with P between 1.0 ng/ml to 1.25 ng/ml) and Group 3 (patients with P ≥ 1.25 ng/ml)

From: Progesterone levels predict pregnancy outcomes in individuals with fallopian tube associated infertility

  Total Group 1 Group2 Group 3 P-value
Patient demographics
 N 854 440 162 252  
 Age (y) 31.99 ± 4.32 31.82 ± 4.29 32.02 ± 4.12 32.25 ± 4.50 NS
 BMI (kg/m2) 23.67 ± 3.85 24.13 ± 3.40 23.42 ± 3.43 23.67 ± 3.85 0.001**a
 Duration of infertility (y) 3.39 ± 2.38 3.44 ± 2.46 3.56 ± 2.60 3.21 ± 2.05 NS
 Basal FSH (IU/L) 6.80 ± 1.61 6.85 ± 1.65 6.51 ± 1.57 6.90 ± 1.54 0.034*b
Treatment protocol and outcomes
 Duration of stimulation (days) 11.64 ± 2.49 11.70 ± 2.61 11.57 ± 2.48 11.58 ± 2.26 NS
 Total gonadotropin (IU) 2662.23 ± 1087.50 2668.16 ± 1140.31 2629.49 ± 1108.43 2672.92 ± 977.73 NS
 Peak estradiol (pg/ml) 2751.16 ± 1165.52 2527.78 ± 1086.78 2872.97 ± 1107.16 3062.86 ± 1252.98 < 0.001**a
 luteinizing hormone on HCG day (IU/L) 1.80 ± 2.16 1.72 ± 2.33 1.91 ± 1.50 1.88 ± 2.20 NS
 No.of oocytes retrieved 9.86 ± 3.32 9.45 ± 3.30 9.70 ± 3.15 10.66 ± 3.34 < 0.001**c
 2PN fertilization rate (%) 63.19 ± 23.57 66.32 ± 20.32 63.18 ± 20.93 63.78 ± 21.16 NS
 High quality embryo rate (%) 29.66 ± 28.57 29.79 ± 27.95 29.51 ± 29.13 29.54 ± 29.38 NS
 Clinical pregnancy rate (%) 55.86(477/854) 55.68(245/440) 58.64(95/162) 54.37(137/252) NS
 Live birth rate (%) 42.04(359/854) 42.28(186/440) 44.45(72/162) 40.08(101/252) NS
 Premature rate (%) 7.73(66/854) 6.36(28/440) 9.26(15/162) 9.13(23/252) NS
 Full-term delivery (%) 34.31(293/854) 35.91(158/440) 35.19(57/162) 30.95(78/252) NS
  1. Note: If it is measurement data, we use analysis of variance to test; if it is count data, Chi-square test was used to test. All tests between the three groups are performed first, and if the difference between the three groups is significant, then pairwise comparisons are made
  2. NS not significant
  3. **, Correlation is significant <0.01 level
  4. *, Correlation is significant <0.05 level
  5. a, P-values were <0.05 in any two groups among three groups, except in the normal-versus-high group
  6. b, P-values were <0.05 in any two groups among three groups, except in the low-versus-high group
  7. c, P-values were<0.05 in any two groups among three groups, except in the low-versus-normal group