. 2019 Nov 11;9(11):e031737. doi: 10.1136/bmjopen-2019-031737

Table 3.

Bivariate associations between different health-risk behaviours

	Alcohol intake			Smoking			Cannabis consumption			Gambling
	Never in the previous year	At least once in the previous year	P value	Never in the previous year	At least once in the previous year	P value	Never in the previous year	At least once in the previous year	P value	Non-gamblers+non-problem gamblers	At risk+problem gamblers	P value
	% (n)	% (n)	P value	% (n)	% (n)	P value	% (n)	% (n)	P value	% (n)	% (n)	P value
Alcohol intake
Never in the previous year				88.8 (7571)	11.2 (951)	<0.001	93.3 (7949)	6.7 (573)	<0.001	97.2 (8283)	2.8 (239)	<0.001
At least once in the previous year				57.1 (4042)	42.9 (3038)	<0.001	68.2 (4831)	31.8 (2249)	<0.001	89.1 (6307)	10.9 (773)	<0.001
Smoking
Never in the previous year							93.7 (10886)	6.3 (727)	<0.001	95.1 (11049)	4.9 (564)	<0.001
At least once in the previous year							47.5 (1894)	52.5 (2095)	<0.001	88.8 (3541)	11.2 (448)	<0.001
Cannabis consumption
Never in the previous year										95.3 (12174)	4.7 (606)	<0.001
At least once in the previous year										85.6 (2416)	14.4 (406)	<0.001