Variables

Suicidal ideation

Value of p (*)

Self-harm behavior

Value of p (*)

Yes

(n = 416; 18.2%)

Yes

(n = 233; 10.2%)

n

%

n

%

n

%

n

%

A) Personal or individual:

Gender:

Male

914

48.9

167

40.1

0.036

969

47.2

112

48.1

0.857

Female

954

51.1

249

59.9

0.013

1082

52.8

121

51.9

0.851

Has eating disorders

754

40.4

203

48.8

0.032

790

38.5

167

71.7

<0.001

Two or more screen hours per day (TV, video games, among others)

544

29.1

133

32.0

0.512

630

30.7

47

20.2

0.130

Few physical activity (0 - 3 days/week)

734

39.3

120

28.8

0.028

760

37.0

94

40.3

0.533

Body image dissatisfaction

800

42.8

217

52.2

0.014

861

42.0

140

60.0

<0.001

Smokes cigarettes

99

5.3

74

17.8

0.008

108

5.3

65

27.9

<0.001

Drink alcoholic beverages

221

11.8

133

32.0

<0.001

277

13.5

77

33.0

<0.001

Smokes marijuana

77

4.1

55

13.2

0.056

81

3.9

51

21.9

0.001

Inhale cement or glue

18

1.0

27

6.5

0.373

21

1.0

24

10.3

0.189

Inhale cocaine

13

0.7

26

6.2

0.428

21

1.0

18

7.7

0.292

Belongs to a subculture:

Metalheads

252

13.5

54

13.0

0.922

258

12.6

48

20.6

0.141

Hiphoppers

102

5.5

26

6.2

0.890

109

5.3

19

8.2

0.616

Rockers

306

16.4

66

15.9

0.921

314

15.3

58

24.9

0.072

Emos

152

8.1

124

29.8

<0.001

198

9.7

78

33.5

<0.001

Gothics

111

5.9

38

9.1

0.496

118

5.8

31

13.3

0.155

Phosphorescent

265

14.2

89

21.4

0.109

298

14.5

56

24.0

0.075

Skaters

455

24.4

13

3.1

0.076

457

22.2

10

4.3

0.175

Prepaid

71

3.8

23

5.5

0.724

75

3.7

19

8.2

0.403

B) Family

Family structure:

Nuclear

1104

59.1

184

44.2

<0.001

1164

56.7

124

53.2

0.455

Not-nuclear

764

40.8

232

55.8

<0.001

887

43.3

109

46.8

0.487

Feeling insecure at home

78

4.2

34

8.2

0.390

85

4.1

27

11.6

0.150

Has no parental support

44

2.4

36

8.7

0.208

55

2.7

25

10.7

0.135

C) Social

Does not feel happy in the EC

188

10.1

62

14.9

0.300

219

10.7

31

13.3

0.665

Does not feel part of the EC

157

8.4

74

17.8

0.036

193

9.4

38

16.3

0.205

Victim of physical violence in EC

477

25.5

183

44.0

<0.001

548

26.7

112

48.1

<0.001

Victim of mocking by teachers

205

11.0

62

14.9

0.406

241

11.8

26

11.2

0.928

Victim of mocking by students

436

23.3

166

39.9

<0.001

498

24.3

104

44.6

<0.001

Feeling rejection in the EC

200

10.7

99

23.8

0.003

233

11.4

66

28.3

<0.001

Have suffered cyberbullying

225

12.0

103

24.8

0.003

272

13.3

56

24.0

0.042