. Author manuscript; available in PMC: 2021 Apr 1.

Published in final edited form as: Int J Drug Policy. 2020 Mar 5;78:102716. doi: 10.1016/j.drugpo.2020.102716

Table 4.

SSP visits and Syringe Coverage Estimates between Substance Use Latent Classes

Variable	Meth-Dominant Use	Heroin/Cocaine Use	Heroin-Dominant Use
Number of Visits (mean, SE)	7.09 (SE=1.14)	10.0 (SE=1.87)	12.2 (SE=0.87)
Lower Coverage Estimate (%, SE)	93.2% (SE=15.1%)	24.7% (SE=6.3%)	40.4% (SE=3.9%)
Upper Coverage Estimate (%, SE)	185.5% (SE=30.4%)	34.6% (SE=8.8%)	67.8% (SE=7.6%)

Class Comparisons	Lower Coverage (mean)	Chi-squared (χ²)	Upper Coverage (mean)	Chi-squared (χ²)
Meth-Dominant vs. Heroin/Cocaine	93.2% vs. 24.7%	17.40 (p<0.001)	185.5% vs. 34.6%	22.69 (p<0.001)
Meth-Dominant vs. Heroin-Dominant	93.2% vs. 40.4%	11.11 (p=0.001)	185.5% vs. 67.8%	13.75 (p<0.001)
Heroin/Cocaine vs. Heroin-Dominant	24.7% vs. 40.4%	3.83 (p=0.05)	34.6% vs. 67.8%	6.84 (p=0.009)