Table 3 Number and proportion of students with, and odds ratio for, symptoms of mental health problems on SDQ according to behavioral factors and school climate perception

 Males

155 (12.1)

1

1

1

 Females

366 (22.3)

0.5 (0.4,0.6)

0.6(0.4, 0,7)

0.6 (0.4,0.7)

 ≤ 8

94 (22.7)

1

1

1

 9–13

198 (15.1)

0.6 (0.5,0.8)

0.6 (0.5, 0.8)

0.6 (0.5,0.9)

 ≥ 14

200 (18.3)

0.8 (0.6,1.0)

1.0 (0.7,1.3)

1.0 (0.7,1.4)

 Tobacco smoking

No

301 (14.8)

1

1

1

Yes

220 (24.6)

1.9 (1.5,2.3)

1.7 (1.3,2.1)

1.7 (1.4,2.1)

 Perceived tobacco dependence

No

382 (15.4)

1

1

1

Yes

120 (32.3)

2.6 (2.1,3.3)

2.4 (1.8,3.2)

2.4 (1.9,3.2)

 Alcohol consumption

No

277 (16.2)

1

1

1

Yes

232 (19.9)

1.3 (1.1,1.6)

1.3 (1.1,1.6)

1.4 (1.1,1.7)

 Perceived drunkenness

No

451 (17.1)

1

1

1

Yes

48 (23.8)

1.5 (1.1,2.1)

1.5 (1.0,2.2)

1.5 (1.0,2.2)

 TV

  0–3 h

349 (15.0)

1

1

1

  ≥ 4 h

161 (30.2)

2.5 (2.0,3.0)

2.4 (1.9,3.1)

2.3 (1.8,3.0)

  0–3 h

199 (12.6)

1

1

1

  4–5 h

123 (19.2)

1.7 (1.3,2.1)

1.4 (1.1,1.8)

1.3 (1.0,1.8)

  ≥ 6 h

191 (29.1)

2.8 (2.3,3.6)

2.2 (1.7,2.9)

2.1 (1.6,2.7)

  0–3 h

436 (16.6)

1

1

1

  ≥ 4 h

70 (30.3)

2.2 (1.6,2.9)

1.9 (1.4,2.7)

1.8 (1.3,2.4)

  0–3 h

439 (17.2)

1

1

1

  ≥ 4 h

66 (21.2)

1.3 (1.0,1.7)

1.8 (1.3,2.6)

1.7 (1.2,2.4)

  Victims

No

186 (10.9)

1

1

1

Yes

328 (27.2)

3.1 (2.5,3.7)

3.1 (2.5,3.9)

3.1 (2.5,3.9)

  Author

No

236 (13.4)

1

1

1

Yes

277 (24.0)

2.0 (1.7,2.5)

2.1 (1.7,2.6)

2.1 (1.7,2.6)

  Victims

No

420 (15.6)

1

1

1

Yes

88 (45.4)

4.5 (3.3,6.1)

5.0 (3.5,7.0)

5.0 (3.6,7.0)

  Author

No

409 (16.0)

1

1

1

Yes

96 (29.3)

2.2 (1.7,2.8)

2.7 (2.0,3.7)

2.7 (2.0,3.7)

  Victims

No

274 (14.4)

1

1

1

Yes

234 (23.5)

1.8 (1.5,2.2)

1.9 (1.5,2.3)

1.9 (1.5,2.3)

  Author

No

328 (15.9)

1

1

1

Yes

177 (21.8)

1.5 (1.2,1.8)

1.4 (1.1,1.7)

1.4 (1.1,1.8)

 Positive perception

283 (14.4)

1

1

1

 Negative perception

238(24.7)

1.9 (1.6,2.4)

1.7(1.4,2.1)

1.8(1.4,2.2)