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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Drug Alcohol Depend. 2012 Jul 11;127(1-3):101–107. doi: 10.1016/j.drugalcdep.2012.06.016

Table 4.

Summary of the logistic regression models for the association of MA use and a positive diagnosis for a psychiatric disorder

 Combined US and NZ Model Odds Ratio (OR) 95% CI
MA use during pregnancy (Yes/No) 2.34 1.54 – 3.58
Country .62 .41 – .95
SES .99 .97 – 1.01
Marijuana use (joints/day) .82 .53 – 1.26
Alcohol (drinks/day) .19 .02 – 1.58
Tobacco (cigarettes/day) 1.02 .98 – 1.05
Country by alcohol interaction 14.09 1.49 – 133.50

US Model Odds Ratio (OR) 95% CI

MA use during pregnancy (Yes/No) 2.37 1.37 – 4.07
SES .99 .96 – 1.01
Marijuana use (joints/day) 1.44 .37 – 5.67
Alcohol (drinks/day) .14 .02 – 1.33
Tobacco (cigarettes/day) 1.01 .978 – 1.05

NZ Model Odds Ratio (OR) 95% CI

MA use during pregnancy (Yes/No) 2.19 1.10 – 4.36
SES .99 .96 – 1.02
Marijuana use (joints/day) .78 .49 – 1.23
Alcohol (drinks/day) 2.75 1.24 – 6.13
Tobacco (cigarettes/day) 1.01 .97 – 1.07