Table 5. Results of Generalized Linear Models (GLM) Analyses (six groups)
Dependent variable Category Estimative p
Pregnancy (B-hCG) Natural-vaginalR - natural-oral 2.35 (1.06 - 5.21) 0.03
Pregnancy (B-hCG) Natural-oralR - artificial-oral 0.87 (0.22 - 0.93) 0.036
Abortion Natural-oralR - artificial-oral 1.31 (1.20 - 1.95) 0.001

Note: CI=confidence interval; p=statistical significance; R=reference values.
p-values are adjusted using the Holm method. All analyses were controlled for age. BMI. embryonic stage. and presence of endometriosis.