TABLE 4.

Multivariate logistic regression analysis of the association between tetracycline prescriptions and medical speciality in HS patient visits, adjusting for sex, race/ethnicity, insurance type, age, rural/urban status and Charlson comorbidity index.

Tetracyclines versus no tetracyclines	OR (95% CI)	p‐value
Visit type
Ambulatory non‐dermatology	(Ref)	‐
Ambulatory dermatology	5.48 (1.19–25.26)	0.03
Sex
Female	(Ref)	‐
Male	0.13 (0.02–0.72)	0.02
Age	1.08 (0.99–1.18)	0.08
Insurance type
Private insurance	(Ref)	‐
Medicare	0.15 (0.02–1.15)	0.07
Self‐pay	6.62 (0.55–80.26)	0.13
Medicaid	0.24 (0.02–2.80)	0.24
Other	2.27 (0.13–38.98)	0.56
Race
White	(Ref)	‐
Black	0.82 (0.20–3.42)	0.78
Hispanic	0.34 (0.05–2.32)	0.26
Other race	3.60 (0.74–17.44)	0.11
Charlson comorbidity index	0.52 (0.14–2.01)	0.33
Rural/Urban status
Urban	(Ref)	‐
Rural	1.77 (0.07–46.17)	0.72
F(12, 19)	1.12
Prob > F	0.40