Interaction of smoking and being bullied on suicidal behaviors: a school-based cross-sectional survey in China

Table 3 ORs for the association between smoking and being bullied by suicidal behaviors among Chinese adolescents

Smoking	Being bullied	Suicidal ideation (n = 4982)				Suicidal plan (n = 2493)				Suicidal attempt (n = 983)
Smoking	Being bullied	n (%)	Crude OR (95% CI)	Adjusted OR (95% CI)^a	P^*	n (%)	Crude OR (95% CI)	Adjusted OR (95% CI)^a	P^*	n (%)	Crude OR (95% CI)	Adjusted OR (95% CI)^a	P^*
No	No	3142 (21.5)	Ref	Ref	< 0.001	1416 (9.7)	Ref	Ref	< 0.001	459 (3.1)	Ref	Ref	< 0.001
No	Yes	1529 (41.6)	2.60 (2.41–2.81)^***	2.69 (2.48–2.91)^***		840 (22.8)	2.77 (2.52–3.04)^***	2.74 (2.49–3.02)^***		339 (9.2)	3.14 (2.71–3.63)^***	3.13 (2.69–3.64)^***
Yes	No	162 (44.3)	Ref	Ref		115 (31.4)	Ref	Ref		93 (25.4)	Ref	Ref
Yes	Yes	149 (70.0)	2.93 (2.05–4.20)^***	2.91 (2.00–4.22)^***		122 (57.3)	2.93 (2.06–4.15)^***	2.82 (1.96–4.06)^***		92 (43.2)	2.23 (1.56–3.20)^***	2.07 (1.42–3.02)^***

^*^**P < 0.001 compared with reference
P^* is value of interaction between smoking and being bullied on suicidal behaviors in multiplicative model
^aAdjusted for gender, grade, any siblings, residential background, accommodation type, father’s education level, mother’s education level, self-reported family economical, and number of friends

ISSN: 1347-4715