Table 3.

Logistic regression of yearly respectively monthly prevalence of secondhand bodily and non-bodily effects

	Yearly prevalence of secondhand effects				Monthly prevalence of secondhand effects
	Non-bodily secondhand effect		Bodily secondhand effect		Non-bodily secondhand effect		Bodily secondhand effect
	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Gender
Female	1		1		1		1
Male	0.8**	0.7–0.9	0.9	0.8–1.1	0.9	0.7–1.2	1.9*	1.1–3.2
Age	0.9*	0.9–1.0	0.9	0.9–1.0	0.9	0.9–1.0	0.9	0.9–1.1
Living arrangement
Parents/family relatives	1		1		1		1
Dormitory	1.4**	1.1–1.7	0.9	0.8–1.2	1.4*	1.0–1.9	1.3	0.7–2.5
Rented accommodation	1.7***	1.4–2.1	1.2*	1.0–1.4	1.2	0.9–1.5	1.5	0.9–2.4
Region
Hanoi	1		1		1		1
Hue	2.7***	2.2–3.5	2.0***	1.6–2.5	3.0***	2.2–4.0	2.4**	1.3–4.5
Hochiminh	1.5***	1.3–1.9	1.9***	1.6–2.3	2.0***	1.5–2.8	1.7	0.9–3.1
BuonMeThuat	3.2***	2.5–4.0	1.7***	1.4–2.1	2.5***	1.9–3.4	1.6	0.8–3.0
Drinking frequency of people the respondent lives with
No drinking/sometimes in a year	1		1		1		1
Monthly	1.6***	1.3–1.9	1.3**	1.1–1.5	2.1***	1.6–2.8	1.5	0.8–2.8
Weekly	2.3***	1.8–2.8	1.4***	1.2–1.7	3.7***	2.8–5.0	2.7**	1.5–5.1
Respondent's drinking behavior
AUDIT score <8	1		1		1		1
AUDIT score ≥8	2.0***	1.6–2.6	2.2***	1.9–2.6	2.0***	1.5–2.5	3.2***	2.0–5.0

OR: odds ratio adjusted for gender, age, living arrangement, region, drinking frequency of the people the respondent lives with, and the respondent's own alcohol problems; CI: confidence interval.

^*p<0.05;

^**p<0.01;

^***p<0.001.