Prevalence and factors associated with suicidal ideation, cannabis, and alcohol use during the COVID-19 pandemic in Saskatchewan: findings from a joint-effect modeling

Table 2 Predicted probabilities, goodness-of-fit, and correlation of the outcome measures

	Suicidal ideation	Problematic cannabis use	Problematic alcohol use
Marginal probability	0.068	0.073	0.134
Joint probability of occurrence of all events (success)	0.012
Joint probability of failure of all events	0.805
Correlation coefficient (suicidal ideation and problematic cannabis use)	0.20
Correlation coefficient (suicidal ideation and problematic alcohol use)	0.46***
Correlation coefficient (problematic alcohol and cannabis use)	0.65***
Number of draws	26
Number of observations	556
AIC	792.62
BIC	974.09
Log likelihood	-354.31
Wald Chi2	149.58
Prob > Chi2	< 0.001

Likelihood ratio test of rho21 = rho31 = rho32 = 0: Chi2(3) = 43.17, p-value < 0.001; where 1 = suicidal ideation, 2 = cannabis use and 3 = alcohol use
AIC Akaike Information Criteria, BIC Bayesian Information Criteria
^***p < 0.001

ISSN: 1471-244X