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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: J Health Psychol. 2016 Oct 9;23(14):1884–1894. doi: 10.1177/1359105316671187

Table 2.

Zero-inflated Growth Curve Model Estimates for Insertive Condomless anal sex Among Young Gay and Bisexual Men

Model 1 (N = 599) Model 2 (N = 527)

Intercept Slope Intercept Slope
Poisson Model (log odds of inflated

In a Relationship - - 2.33*** -0.42**
Relationship Fear - - -0.05 0.01
Relationship Control - - -0.37* 0.09*
Means -2.17*** 0.32*** -2.49** 0.12
Variance 7.13*** 0.25*** 5.71*** 0.21***
COV -1.06*** -1.36*

Logit Model (log count from Poisson

In a Relationship - - 0.44 -0.14
Relationship Fear - - 0.21 -0.04
Relationship Control - - -0.07 0.001
Means - 0.07 - 0.30
Variance - - - -

Model Fit Statistics
Number of Free 7 19
AIC 5422.90 4678.95
BIC 5453.67 4760.03
Log-Likelihood -2704.45 -2320.48

Note. Standard errors are calculated by robust estimation. “-“ indicates parameters not in the model or fixed to 0. COV = error variance; AIC = Akaike’s Information Criterion; BIC = Bayesian Information Criterion.

***

p <.001,

**

p <.01,

*

p <.05