Table 3.

Logistic regression analysis of reproductive outcomes for the four progesterone groups

Type of analysis		Unadjusted analysis		Adjusted analysis
		OR (95% CI)	P value	OR (95% CI)	P value
Clinical pregnancy
	Q1	1		1
	Q2	1.47 (0.68-3.18)	0.329	1.85 (0.81-4.22)	0.144
	Q3	1.17 (0.54-2.57)	0.689	1.63 (0.70-3.78)	0.259
	Q4	1.87 (0.87-4.03)	0.109	2.02 (0.89-4.57)	3
Fetal heart beat
	Q1	1		1
	Q2	1.53 (0.68-3.44)	0.307	1.92 (0.82-4.52)	0.135
	Q3	1.20 (0.52-2.74)	0.673	1.61 (0.67-3.90)	0.288
	Q4	1.45 (0.64-3.28)	0.377	1.56 (0.66-3.638)	0.311
Live birth
	Q1	1		1
	Q2	1.86 (0.81-4.29)	0.146	2.36 (0.98-5.71)	0.056
	Q3	1.34 (0.56-3.17)	0.512	1.79 (0.72-4.46)	0.214
	Q4	1.49 (0.63-3.51)	0.36	1.59 (0.65-3.89)	0.308
Miscarriage
	Q1	1		1
	Q2	0.38 (0.08-1.88)	0.236	0.33 (0.06-1.75)	0.193
	Q3	0.64 (0.14-2.92)	0.565	0.59 (0.11-3.10)	0.537
	Q4	1.35 (0.36-5.08)	0.657	1.17 (0.30-4.60)	0.822

Data shows OR of groups Q2, Q3, and Q4 when Q1 is set to 1. Adjusted variables: age, body mass index, and transferred embryo.