Table 3

Statistical significance of the variables used in the models predicting substance use overestimation

Variable

p-value (Likelihood Ratio Test)


Tobacco

Cannabis

Alcohol

HED


Tobacco use

0.0438

-

0.0997

0.0059


Cannabis use

-

0.0062

-

-


Alcohol use

-

0.0632

0.0029

-


HED

-

-

-

0.0019


Discipline

-

0.0007

<0.0001

<0.0001


Tobacco use prevalence in class

<0.0001

-

-

-


Cannabis use prevalence in class

-

0.0004

-

-


Alcohol use prevalence in class

-

0.0657

0.0055

0.0042


HED prevalence in class

-

-

0.0267

<0.0001


Gender

0.0002

0.0569

-

0.0069


Previous questionnaires

-

-

0.0122

0.0893


Cannabis prevention campaigns

0.0217

0.0177

-

-


A "-" sign indicates that the variable was not included in this model. Bold p-values indicate significance at the 5% level. HED: Heavy episodic drinking.

Riou Franca et al. BMC Public Health 2010 10:169   doi:10.1186/1471-2458-10-169

Open Data