Table 1 Association of independent factors with suicidal behaviours (ideation, plan, and attempts) among participants

Demographic

 Sex

Male

165(9.3%)

494(27.8%)

.488

147(8.3%)

512(28.8%)

1.25

145(8.2%)

514(28.9%)

.02

Female

264(14.8%)

856(48.1%)

276(15.5%)

844(47.4%)

243(13.7%)

877(49.3%)

 Age (years)

13–15

216(12.1%)

744(41.8%)

2.97

232(13.0%)

728(40.9%)

.17

207(11.6%)

753(42.3%)

.075

≥ 16

213(12.0%)

606(34.1%)

191(10.7%)

628(35.3%)

181(10.2%)

638(35.9%)

 Grade

Grade 1–3

222(12.5%)

744(41.8%)

1.48

231(13.0%)

735(41.3%)

.02

207(11.6%)

759(42.7%)

.180

Grade 4–6

207(11.6%)

606(34.1%)

192(10.8%)

621(34.9%)

181(10.2%)

632(35.5%)

Personal

 Truancy

Yes

177(9.9%)

457(25.7%)

7.79**

178(10.0%)

456(25.6%)

10.04**

184(10.3%)

450(25.3%)

30.05***

No

252(14.2%)

893(50.2%)

245(13.8%)

900(50.6%)

204(11.5%)

941(52.9%)

 Hunger

Yes

48(2.7%)

162(9.1%)

.206

47(2.6%)

163(9.2%)

.26

43(2.4%)

167(9.4%)

.248

No

381(21.4%)

1188(66.8%)

376(21.1%)

1193(67.1%)

345(19.4%)

1224(68.8%)

Substance and drugs

 Uses amphetamine/methamphetamines

Yes

41(2.3%)

76(4.3%)

8.17**

46(2.6%)

71(4.0%)

16.69***

56(3.1%)

61(3.4%)

49.85***

No

388(21.8%)

1274(71.6%)

377(21.2%)

1285(72.2%)

332(18.7%)

1330(74.8%)

 Uses marijuana

Yes

57(3.2%)

83(4.7%)

22.88***

64(3.6%)

76(4.3%)

40.35***

66(3.7%)

74(4.2%)

57.19***

No

372(20.9%)

1267(71.2%)

359(20.2%)

1280(72.0%)

322(18.1%)

1317(74.0%)

 Drinks alcohol

Yes

87(4.9%)

147(8.3%)

25.13***

91(5.1%)

143(8.0%)

33.95***

100(5.6%)

134(7.5%)

69.18***

No

342(19.2%)

1203(67.6%)

332(18.7%)

1213(68.2%)

288(16.2%)

1257(70.7%)

 Drunk after consuming alcohol

Yes

71(4.0%)

115(6.5%)

22.43***

76(4.3%)

110(6.2%)

33.45***

71(4.0%)

115(6.5%)

32.61***

No

358(20.1%)

1235(69.4%)

347(19.5%)

1246(70.0%)

317(17.8%)

1276(71.7%)

 Smoke cigarettes

Yes

91(5.1%)

115(6.5%)

51.23***

96(5.4%)

110(6.2%)

66.97***

92(5.2%)

114(6.4%)

71.33***

No

338(19.0%)

1235(69.4%)

327(18.4%)

1246(70.0%)

296(16.6%)

1277(71.8%)

Psychosocial

 Physically attacked

Yes

113(6.4%)

216(12.1%)

23.09***

109(6.1%)

220(12.4%)

19.48***

114(6.4%)

215(12.1%)

39.03***

No

316(17.8%)

1134(63.7%)

314(17.7%)

1136(63.9%)

274(15.4%)

1176(66.1%)

 Physical fight

Yes

231(13.0%)

537(30.2%)

26.26***

214(12.0%)

554(31.1%)

12.46***

205(11.5%)

563(31.6%)

18.89***

No

198(11.1%)

813(45.7%)

209(11.7%)

802(45.1%)

183(10.3%)

828(46.5%)

 Seriously injured

Yes

245(13.8%)

571(32.1%)

28.77***

222(12.5%)

594(33.4%)

9.78**

228(12.8%)

588(33.1%)

33.23***

No

184(10.3%)

779(43.8%)

201(11.3%)

762(42.8%)

160(9.0%)

803(45.1%)

 Bullied

Yes

211(11.9%)

416(23.4%)

48.132***

208(11.7%)

419(23.6%)

47.17***

207(11.6%)

420(23.6%)

71.28***

No

218(12.3%)

934(52.5%)

215(12.1%)

937(52.7%)

181(10.2%)

971(54.6%)

 Loneliness

Yes

72(4.0%)

106(6.0%)

28.84***

66(3.7%)

112(6.3%)

19.31***

74(4.2%)

104(5.8%)

45.30***

No

357(20.1%)

1244(69.9%)

357(20.1%)

1244(69.9%)

314(17.7%)

1287(72.3%)

 Worry

Yes

81(4.6%)

104(5.8%)

43.65***

76(4.3%)

109(6.1%)

34.11***

79(4.4%)

106(6.0%)

52.85***

No

348(19.6%)

1246(70.0%)

347(19.5%)

1247(70.1%)

309(17.4%)

1285(72.2%)

 Close friends

Yes

48(2.7%)

116(6.5%)

2.62

53(3.0%)

111(6.2%)

7.27**

56(3.1%)

108(6.1%)

16.12***

No

381(21.4%)

1234(69.4%)

370(20.8%)

1245(70.0%)

332(18.7%)

1283(72.1%)

 Parental/guardian use of tobacco

Yes

140(7.9%)

369(20.7%)

4.48

142(8.0%)

367(20.6%)

6.68*

136(7.6%)

373(21.0%)

10.08**

No

289(16.2%)

981(55.1%)

281(15.8%)

989(55.6%)

252(14.2%)

1018(57.2%)

 People smoked in adolescent’s presence

Yes

330(18.5%)

903(50.8%)

15.41***

317(17.8%)

916(51.5%)

8.28**

295(16.6%)

938(52.7%)

10.54**

No

99(5.6%)

447(25.1%)

106(6.0%)

440(24.7%)

93(5.2%)

453(25.5%)

 Multiple sexual partners

Yes

64(3.6%)

101(5.7%)

21.40***

69(3.9%)

96(5.4%)

32.66***

69(3.9%)

96(5.4%)

42.69***

No

365(20.5%)

1249(70.2%)

354(19.9%)

1260(70.8%)

319(17.9%)

1295(72.8%)

 Parents/guardians check if homework is done

Yes

183(10.3%)

690(38.8%)

9.31**

188(10.6%)

685(38.5%)

4.76*

165(9.3%)

708(39.8%)

8.51**

No

246(13.8%)

660(37.1%)

235(13.2%)

671(37.7%)

223(12.5%)

683(38.4%)

 Understanding parents

Yes

81(4.6%)

399(22.4%)

18.83***

91(5.1%)

389(21.9%)

8.42**

80(4.5%)

400(22.5%)

10.19**

No

348(19.6%)

951(53.5%)

332(18.7%)

967(54.4%)

308(17.3%)

991(55.7%)

 Parents/guardians know what adolescent does with their free time

Yes

113(6.4%)

445(25.0%)

6.63*

113(6.4%)

445(25.0%)

5.58*

93(5.2%)

465(26.1%)

12.61***

No

316(17.8%)

905(50.9%)

310(17.4%)

911(51.2%)

295(16.6%)

926(52.1%)