Table 4. Relationships between suspected intellectual disability (ID) and primary substance of use in homeless people who regularly use substances (n = 180)^*.

	Suspected ID	No suspected ID	OR	95% CI	p-value
Mainly alcohol use (%)	55.9	47.9	1.25	0.637–2.467	0.512
Mainly cannabis use (%)	30.5	46.3	0.53	0.251–1.101	0.088
Mainly other substances (%) (1)	13.6	5.8	2.46	0.836–7.247	0.102

*Multivariate logistic regression analysis adjusted for age and gender.

(1) Other substances: cocaine (n = 12), methadone (n = 2), heroin (n = 1), XTC (n = 1), amphetamine (n = 1).

ID  =  intellectual disability.

Note: for each comparison, the no suspected ID group is the reference group.