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. Author manuscript; available in PMC: 2018 Oct 14.
Published in final edited form as: Am J Drug Alcohol Abuse. 2018 Apr 19;44(4):488–496. doi: 10.1080/00952990.2018.1458234

Table 1.

Parameter estimates for linear latent growth models for opioid-positive samples at baseline and 4 weeks of treatment

Independent variable Dependent variable Unstandardized estimate (B) 95% CI P-value
Model 1:
Total sample
--- UA intercept .53 −1.26, 2.32 .56
--- UA slope .77 .19, 1.25 .01
Sex UA intercept −1.18 −1.22, −.21 .02
Trial arm UA intercept .35 −.14, .85 .16
Age (years) UA intercept −.04 −.08, .002 .06
Trial arm*sex UA intercept .70 .17, 1.23 01
Sex UA slope .33 .09, .58 .01
Trial arm UA slope −.23 −.35, −.10 <.001
Age (years) UA slope −.003 −.01, .01 .64
Trial arm*sex UA slope −.11 −.25, .02 .12
UA intercept UA slope −.12 −.19, −.05 .001

Buprenorphine/naloxone tapering groups were coded as −.5 = 7-day taper group (referent group), .5 = 28-day taper group, and sex was coded as −.5 = male (referent group), .5 = female; ASI-L composite scores were grand-mean centered.