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Table 5 Results of the multilevel Poisson model for using unsterilized needles in the last 30 days

From: Longitudinal analysis of HIV-risk behaviors of participants in a randomized trial of prison-initiated buprenorphine

EffectbSEERR (95% CI)td.f.p
For intercept π0
 Intercept β001.150.383.16 (1.50, 6.65)3.02940.003
 Gender β010.550.561.74 (0.57, 5.27)0.99940.33
For days slope π1
 Intercept β10− 0.0020.0021.00 (1.00, 1.00)− 1.201200.23
 Condition β11− 0.00030.0021.00 (1.00, 1.00)− 0.151200.88
 Gender β12− 0.00020.0021.00 (1.00, 1.00)− 0.111200.91
 Community treatment entry β13− 0.010.0061.00 (0.98, 1.00)− 1.581200.12
 Condition * community treatment entry β14
  1. N = 211. b denotes the unstandardized partial regression coefficient; SE denotes its standard error. ERR denotes the Event Rate Ratio for a one unit increase in the given variable. t denotes the t statistic for the given parameter estimate and d.f. is its degrees of freedom. Participant gender; male = 0; female = 1. Treatment condition; buprenorphine initiated in the community = 0; buprenorphine initiated in prison = 1. Whether or not the participant entered community treatment within 10 days of release from prison; no = 0; yes = 1