The association between endometrial thickness and pregnancy outcome in gonadotropin-stimulated intrauterine insemination cycles

Table 3 Comparison of outcomes among Peak EST groups for all patients treated

Models:		Outcomes			P-value
		Clinical Pregnancy	P-value	Conception
		estimate (se)	P-value	estimate (se)
Piece-wise linear Model**	Peak EST (peak EST < 14)	0.32 (0.17)	0.06	0.37 (0.16)	0.022
Piece-wise linear Model**	Peak EST (Peak EST > =14)	−0.94 (0.69)	0.17	−1.27 (0.68)	0.06
Multiple logistic regression model ***		Adjusted OR(95%CI)	P-value	Adjusted OR(95%CI)	P-value
	Group 1 vs 3	0.44(0.16,1.21)	0.11	0.61(0.23,1.58)	0.31
	Group 2 vs 3	0.77(0.52,1.14)	0.2	0.69(0.48,0.99)	0.046
	ref, Group 3	1		1
	Group 4 vs 3	0.6(0.19,1.94)	0.39	0.46(0.15,1.38)	0.16

**Multivariable piecewise linear model with change point at peak EST = 14
***: The adjusted OR (95%CI) were determined based on Multiple logistic regression model for the outcomes with GEE approach to account for the clustering of cycles for the same patient
For both models, the potential confounders adjusted for were age, dominant follicles, motile sperm count, and peak estrogen
Group 1: peak EST < 7 (mm); Group 2: peak EST: 7–10.4 (mm); peak EST: 10.5–13.9 (mm); Group 4: peak EST > =14 (mm)

ISSN: 1477-7827