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

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

  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)
  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