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Table 4 Summary of the regression of the variable “total score in PANSS” (R2 = 0.82; F = 7.03; p = 0.000)

From: Cannabis and schizophrenia: characterisation of a risk factor in a sample of Moroccan patients hospitalised for psychosis

Independent variables BETA BETA standard error t P
Smoked cannabis alone 0.53 0.06 5.09 0.000
Tobacco consumption 0.80 0.23 6.13 0.000
Frequency of tobacco use 0.42 0.12 3.43 0.001
Age of onset of cannabis use − 0.91 0.15 − 4.74 0.000
Often smoked cannabis alone 0.91 0.39 7.20 0.000
Perception of risk related to tobacco and cannabis use 0.15 0.21 2.13 0.039
Representations of the unpleasant psychological effects and physical risks of cannabis − 0.32 0.65 − 3.85 0.000
Representations of positive school effects of cannabis 0.37 0.19 2.53 0.016
Representations of dependency 0.47 0.72 5.31 0.000
Cannabis dependence − 0.45 0.09 − 3.59 0.001
  1. R2 Multiple correlation coefficient, F F-statistic