Table 2.
Descriptive statistics of independent variables and by suicidal attempt
| Variable (# missing cases) | Total sample | Suicide attempt | ||||
|---|---|---|---|---|---|---|
| All | Boys | Girls | All | Boys | Girls | |
| N (%) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | |
| Socio-demographics | ||||||
| All | 4,274 | 16.6 (14.1, 19.4) | 12.2 (9.0, 16.4) | 20.2 (16.9, 23.9) | ||
| Sex (#84) | ||||||
| Female | 2,170 (50.6) | |||||
| Male | 2,120 (49.4) | |||||
| Age in years (#55) | ||||||
| 13 or less | 1,106 (28.6) | 27.6 (20.7, 35.9) | 28.6 (21.7, 36.8) | 18.7 (14.9, 23.1) | 15.0 (9.6, 22.6) | 22.7 (16.3, 30.8) |
| 14 | 1,278 (27.8) | 26.1 (20.6, 32.5) | 29.9 (25.2, 35.1) | 16.1 (14.9, 21.3) | 14.2 (8.7, 22.4) | 17.1 (11.6, 24.5) |
| 15 | 1,249 (25.8) | 26.1 (21.6, 32.5) | 26.4 (22.1, 31.2) | 16.5 (12.4, 21.5) | 11.2 (6.4, 18.9) | 22.2 (16.7, 28.9) |
| 16 or more | 686 (17.7) | 20.1 (12.5, 30.8) | 15.1 (7.6, 27.7) | 12.6 (7.6, 20.0) | 6.3 (2.4, 15.5) | 18.4 (7.6, 38.1) |
| Hunger (#56) | ||||||
| Never | 1,660 (62.4) | 59.6 (55.4, 63.8) | 65.4 (58.6, 71.6) | 14.3 (12.2, 16.7) | 10.7 (7.4, 15.2) | 17.1 (14.5, 19.9) |
| Rarely | 1,069 (22.5) | 26.0 (22.4, 29.9) | 19.0 (15.2, 23.5) | 17.7 (11.9, 25.4) | 11.1 (6.1, 19.3) | 26.1 (19.1, 34.6) |
| Sometimes/mostly/always | 589 (15.0) | 14.4 (10.5, 19.4) | 15.6 (10.4, 22.8) | 24.7 (17.5, 33.5) | 20.5 (11.2, 34.5) | 25.8 (16.4, 38.2) |
| Internalizing problems | ||||||
| No close friends (#116) | 386 (7.1) | 8.0 (5.9, 11.0) | 6.0 (4.5, 8.0) | 29.8 (22.0, 38.9) | 25.2 (14.0, 41.1) | 32.1 (18.1, 50.3) |
| Loneliness (#67) | 447 (8.9) | 5.3 (3.8, 7.3) | 12.5 (10.2, 15.3) | 50.5 (38.1, 62.7) | 42.9 (23.9, 64.3) | 52.8 (41.3, 63.9) |
| Anxiety (#151) | 360 (7.1) | 5.0 (3.5, 7.1) | 8.9 (6.8, 11.7) | 37.1 (26.4, 49.1) | 23.5 (14.0, 36.6) | 38.7 (21.7, 59.0) |
| Suicidal ideation (#184) | 869 (18.0) | 13.1 (9.7, 17.8) | 22.6 (19.2, 26.6) | 49.3 (42.7, 56.0) | 39.8 (30.8, 49.5) | 54.3 (44.8, 63.5) |
| Suicide plan (#158) | 700 (13.7) | 10.2 (8.3, 12.4) | 17.4 (14.3, 20.8) | 52.8 (41.5, 63.8) | 40.4 (21.3, 63.1) | 58.9 (49.0, 68.0) |
| Externalizing probems | ||||||
| Current alcohol use (#102) | 953 (18.3) | 19.8 (15.3, 25.2) | 16.2 (12.9, 20.2) | 30.2 (22.1, 39.7) | 21.8 (12.8, 34.7) | 36.0 (28.6, 44.1) |
| Current cannabis use (#197) | 322 (4.1) | 5.7 (4.0, 8.1) | 2.6 (1.7, 3.8) | 41.7 (24.7, 61.0) | 34.0 (17.8, 54.9) | 59.8 (33.7, 81.4) |
| Ever amphetamine use (#192) | 170 (3.4) | 4.7 (3.1, 7.0) | 1.6 (0.9, 2.9) | 60.9 (42.9, 76.5) | 55.2 (36.1, 72.8) | 76.9 (54.9, 90.1) |
| Ever sex (#472) | 797 (19.7) | 28.5 (23.1, 34.6) | 10.2 (7.7, 13.3) | 20.1 (13.7, 28.5) | 16.4 (9.8, 26.1) | 27.5 (18.0, 39.7) |
| Soft drinks (2 or more/day) (#26) | 1,418 (28.0) | 28.4 (22.8, 34.7) | 28.6 (22.0, 36.3) | 19.8 (15.6, 24.8) | 15.7 (11.0, 22.1) | 24.5 (17.1, 33.7) |
| Bullied (#294) | 884 (23.9) | 26.7 (21.8, 32.2) | 20.8 (18.0, 23.9) | 24.5 (17.6, 32.9) | 19.7 (11.9, 31.0) | 29.2 (19.3, 41.6) |
| Attacked (#56) | 1,067 (23.9) | 27.7 (23.4, 32.4) | 19.3 (15.6, 23.5) | 26.6 (20.8, 33.5) | 23.1 (15.4, 33.0) | 29.3 (20.7, 39.7) |
| In physical fight (#46) | 1,114 (22.8) | 30.9 (27.1, 35.0) | 14.1 (11.4, 17.3) | 22.1 (15.9, 29.8) | 16.0 (10.4, 23.9) | 31.6 (21.2, 44.2) |
| Injury (#26) | 1,481 (31.8) | 36.9 (32.3, 41.8) | 26.3 (21.6, 31.5) | 22.0 (17.5, 27.3) | 17.0 (11.5, 24.3) | 26.2 (19.5, 34.2) |
Abbreviation: CI, confidence interval.