Chunk #39 — Results — Survival mixture analysis — Model comparisons

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The CHRNA5/A3/B4 gene cluster and tobacco, alcohol, cannabis, inhalants and other substance use initiation: replication and new findings using mixture analyses.

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The three information criteria indicated two different models for inhalants and other substances, namely the M2C2 model and the M3C1 model with constant hazard. In case of first use of other substances AIC was lowest for the M2C2 model whereas the two different BIC’s pointed to the more parsimonious M3c1 model. For other substances the pattern was similar although the saBIS was also lowest for the M2C2 model.