Treatment experiences for skin and soft tissue infections among participants of syringe service programs in North Carolina

Table 2 Unadjusted and adjusted prevalence differences between participant characteristics and skin and soft tissue infection (SSTI) history during the previous 12 months

	N with SSTI/Total Participants	SSTI Prevalence Difference (N per 100 persons)	SSTI Prevalence Difference 95% Confidence Interval
Drug use characteristics during the previous 12 months
Cocaine injection
Unadjusted estimate	47 102	18.8	(− 0.2, 37.9)
Adjusted estimate	47/100	17.5	(− 2.0, 37.0)
Crack-cocaine injection
Unadjusted estimate	47/102	25.5	(5.8, 45.3)
Adjusted estimate	47/100	23.5	(3.5, 43.5)
Fentanyl injection
Unadjusted estimate	47/102	18.8	(− 1.1, 38.8)
Adjusted estimate	47/100	18.6	(− 3.6, 40.7)
Heroin injection
Unadjusted estimate	47 102	13.4	(− 8.5, 35.2)
Adjusted estimate	47/100	12.6	(− 14.0, 39.1)
Methamphetamine injection
Unadjusted estimate	47/102	11.3	(− 8.1, 30.7)
Adjusted estimate	47/100	8.4	(− 11.4, 28.2)
Skin popping
Unadjusted estimate	47/100	13.6	(− 7.2, 34.4)
Adjusted estimate	47/100	12.9	(− 8.3, 34.0)
Missed a shot
Unadjusted estimate	47/100	19.5	(− 1.0, 40.0)
Adjusted estimate	47/100	17.9	(− 3.9, 39.7)
Healthcare access
Health insurance coverage
Unadjusted estimate	47/100	− 8.8	(− 29.3, 11.7)
Adjusted estimate	47/100	− 10.3	(− 31.3, 10.7)
Access to trusted doctor
Unadjusted estimate	47/100	− 24.3	(− 44.4, − 4.2)
Adjusted estimate	47/100	− 26.9	(− 51.8, − 2.1)

Prevalence differences reflect the difference in the prevalence of SSTI history in the previous 12 months among those with the drug use or healthcare access characteristic versus those without the characteristic of interest, excluding those with missing values. For example, the prevalence difference for cocaine injection compared the prevalence of SSTI history in the previous 12 months among those who injected cocaine versus those who had not in the previous 12 months. Adjustment variables included race, gender, and health insurance coverage for all predictors, excluding health insurance coverage. Health insurance coverage was adjusted for race and gender

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