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Table 1 Demographic information in adolescents with and without NSSI (N = 1602)

From: The psychosocial consequences of covid-19 in adolescents with nonsuicidal self-injury

 

Total sample

N = 1602

n (%)

NSSI

n = 488

n (%)

No NSSI

n = 1114

n (%)

Stats

NSSI vs. no NSSI

Gender

 Boy

681 (42.5)

121 (24.8)

560 (50.3)

χ2 [2] = 102.58,

p < .001,

Cramer’s V = .25

 Girl

903 (56.4)

353 (72.3)

550 (49.4)

 Non-binary identification

18 (1.1)

14 (2.9)

4 (0.4)

Age (m, sd)

18.1 (0.6)

18.1 (0.6)

18.1 (0.6)

ns

Study program

 Theoretical

1127 (70.3)

308 (63.1)

819 (73.5)

χ2 [2] = 18.30,

p < .001,

Cramer’s V = .11

 Practical

446 (27.8)

171 (35.0)

275 (24.7)

 Lacks formal merits for high-school

29 (1.8)

9 (1.8)

20 (1.8)

Fathers working

1396 (87.1)

416 (85.2)

980 (88.0)

ns

Mothers working

1410 (88.0)

420 (86.1)

990 (88.9)

ns

 Fathers with university education

643 (40.1)

173 (35.5)

470 (42.2)

ns

Mothers with university education

903 (56.4)

268 (54.9)

635 (57.0)

ns

Financial situation in the family

 Good

1220 (76.2)

316 (64.6)

904 (81.1)

χ2 [2] = 51.38,

p < .001,

Cramer’s V = .18

 Neither good nor bad

321 (20.0)

141 (28.9)

180 (16.2)

 Poor

61 (3.8)

31 (6.4)

30 (2.7)

Adolescents born in Sweden

1459 (91.0)

443 (90.8)

1015 (91.1)

ns

Fathers born in Sweden

1326 (82.8)

411 (84.2)

915 (82.1)

ns

Mothers born in Sweden

1302 (81.3)

404 (82.8)

898 (80.6)

ns

Living situation

 With both parents

997 (62.2)

261 (53.5)

736 (66.1)

χ2 [4] = 38.65,

p < .001,

Cramer’s V = .16

 Alternating between both parents

190 (11.9)

64 (13.1)

126 (11.3)

 With one parent with or without new partner

327 (20.4)

118 (24.2)

209 (18.8)

 Alone or with siblings or partner

77 (4.8)

43 (8.8)

34 (3.1)

 In foster care or institution

11 (0.7)

2 (0.4)

9 (0.8)

  1. NSSI = nonsuicidal self-injury