Table 5.

Association between education level and hazardous drinking behaviours in the past year, adjusted for other socio-economic factors.

	Incomplete secondary or less		Secondary, specialised or professional		Incomplete/complete higher
	OR	(95% CI)	OR	(95% CI)	OR (95% CI)	P for trend*
Ever consumed surrogates
Unadjusted	12.8	(5.6, 29.2)	3.9	(1.9, 7.7)		< 0.001
Adj. for employment status	9.6	(4.0, 22.8)	3.4	(1.7, 6.9)	1.0 (referent)	< 0.001
Adj. for amenity index	8.8	(3.8, 20.5)	3.4	(1.7, 6.9)		< 0.001
Adj. for both	7.7	(3.2, 18.5)	3.2	(1.6, 6.5)		< 0.001
Had been on zapoi
Unadjusted	9.4	(4.5, 19.7)	4.0	(2.3, 7.0)		< 0.001
Adj. for employment status	6.0	(2.7, 13.3)	3.3	(1.8, 5.8)	1.0 (referent)	< 0.001
Adj. for amenity index	7.2	(3.4, 15.4)	3.7	(2.1, 6.5)		< 0.001
Adj. for both	5.2	(2.3, 11.8)	3.2	(1.8, 5.7)		< 0.001
Had a hangover frequently
Unadjusted	5.8	(3.0, 11.3)	3.1	(2.0, 5.0)		< 0.001
Adj. for employment status	4.2	(2.1, 8.5)	2.7	(1.7, 4.4)	1.0 (referent)	< 0.001
Adj. for amenity index	4.6	(2.3, 9.1)	2.9	(1.8, 4.6)		< 0.001
Adj. for both	3.7	(1.8, 7.4)	2.6	(1.6, 4.2)		< 0.001
Drank spirits daily versus less frequently
Unadjusted	1.6	(0.6, 4.7)	1.1	(0.6, 2.0)		0.51
Adj. for employment status	1.3	(0.4, 3.9)	1.0	(0.5, 1.8)	1.0 (referent)	0.82
Adj. for amenity index	1.4	(0.5, 4.2)	1.0	(0.5, 1.9)		0.71
Adj. for both	1.3	(0.4, 3.8)	0.9	(0.5, 1.7)		0.91

^*P-value for χ² test for a general association (non-ordinal variables).

All analyses are adjusted for age group.