Table 4.

Predictive factors for duration of triptorelin treatment (Cox regression analysis).

	Univariate analysis		Multivariate analysis
Factors	HR (95% CI)	P value	HR (95% CI)	P value
Age at surgery, y	0.985 (0.970–1.001)	.064	0.983 (0.968–1.000)	.044∗
Associated DIE lesion
Yes vs no	0.819 (0.650–1.033)	.092
Previously surgically diagnosed with endometriosis
Yes vs no	0.837 (0.653–1.072)	.158
Previously treatment with a hormonal for endometriosis
Yes vs no	0.748 (0.569–0.981)	.036∗	0.724 (0.543–0.950)	.024∗
Intensity of dysmenorrhea prior to surgery (vs mild)
Null	0.860 (0.617–1.200)	.376
Moderate	0.693 (0.509–0.944)	.020∗
Severe	0.784 (0.599–1.026)	.076
Intensity of pain at time of ovulation prior to surgery (vs mild)
Null	1.126 (0.881–1.440)	.342
Moderate	0.796 (0.534–1.186)	.262
Severe	0.637 (0.373–1.088)	.098
Intensity of GI symptoms prior to surgery (vs mild)
Null	0.942 (0.698–1.271)	.695
Moderate	0.642 (0.412–0.999)	.049∗
Severe	0.774 (0.501–1.196)	.248
Infertility
Yes vs. no	1.377 (1.042–1.821)	.025∗	1.401 (1.046–1.844)	.019∗

CI = confidence interval, DIE = deep infiltrating endometriosis, GI = gastrointestinal, HR = hazard ratio.

^∗P < .05.