Table 5.

Factors associated with recurrence in patients with idiopathic granulomatous mastitis.

Characteristics (n = 41)	Univariate Logistic Regression
	Odds Ratio	95% CI			p-Value
Age, years	1.179	1.000	to	1.390	0.049
Body mass index, kg/m2	0.969	0.827	to	1.135	0.697
Age of menarche, years	1.113	0.604	to	2.052	0.731
Pregnancy	0.533	0.043	to	6.655	0.625
Gestation	1.817	0.873	to	3.783	0.110
Age of first pregnancy, years	1.027	0.904	to	1.166	0.687
Breastfeeding	0.828	0.075	to	9.074	0.877
Smoking	N.A.
Diabetes mellitus	N.A.
Lesion size, cm	1.165	0.737	to	1.843	0.514
Abscess formation	2.571	0.545	to	12.139	0.233
Multiple lesions	1.591	0.279	to	9.066	0.601
Skin ulcer or fistula	11.692	1.302	to	105.028	0.028
Symptom duration, weeks	1.016	0.975	to	1.059	0.456
Bilateral lesions	4.320	0.851	to	21.929	0.078
Extramammary manifestation	2.857	0.601	to	13.586	0.187
Corynebacterium infection	0.857	0.147	to	4.999	0.864
C-reactive protein, mg/dL	1.874	1.139	to	3.084	0.013
Methotrexate use	4.400	0.911	to	21.248	0.065
Surgery	0.955	0.199	to	4.571	>0.900
Time to resolution, weeks	1.015	0.993	to	1.038	0.171

CI, confidence interval; N.A., not applicable.