Table 3.

Logistic regression analysis of independent risk factors for stage IV of endometriosis disease.

Parameters	Univariate logistic regression			Multiple logistic regression
	Odds ratio	95% CIa	p-value	Odds ratio	95% CIa	p-value
Age at evaluation (years)	1.01	0.97–1.04	0.65
Age at diagnostic LS (years)	0.97	0.94–1.01	0.23
Age at symptoms onset (years)	0.97	0.94–1.01	0.19
Time from LS (years)	1.01	0.97–1.05	0.48
Number of LS procedures*	2.81	1.45–5.43	0.002	2.70	1.37–5.30	0.050
Number of clinical evaluations	0.91	0.79–1.05	0.20
Autoimmunity*	2.63	1.64–4.21	0.000	2.54	1.57–4.10	0.004
Hormone therapy	1.26	0.95–1.67	0.11

LS, laparoscopic surgery.

*Variables included in the multiple logistic regression analysis.

Bold values denote statistical significance at the p ≤ 0.05 level.

^a95% confidence intervals.