Table 2 Rates of suicidal ideation, planning and attempts among boys and girls with and without substance use
| Â | Suicidal ideation n (%) | P value | Suicidal plaining n (%) | P value | Suicidal attempts n (%) | P value |
|---|---|---|---|---|---|---|
Boys | ||||||
 Cigarette use | ||||||
  Yes(n = 311) | 64 (20.58) | <0.001 | 60 (19.29) | <0.001 | 39 (12.54) | <0.001 |
  No(n = 6300) | 736 (11.68) |  | 562 (8.92) |  | 319 (5.06) |  |
 Alcohol use | ||||||
  Yes (n = 112) | 30 (26.79) | <0.001 | 25 (22.32) | <0.001 | 19 (16.96) | <0.001 |
  No (n = 6499) | 770 (11.85) |  | 597 (9.19) |  | 339 (5.22) |  |
 Ketamine use | ||||||
  Yes (n = 23) | 10 (38.46) | 0.001 | 8 (34.78) | 0.002 | 5 (21.74) | 0.012 |
  No (n = 6588) | 790 (12.00) |  | 614 (9.32) |  | 353 (5.36) |  |
 MDMA use | ||||||
  Yes (n = 29) | 16 (44.44) | <0.001 | 12 (33.33) | <0.001 | 9 (25.00) | <0.001 |
  No (n = 6582) | 784 (11.92) |  | 610 (9.28) |  | 349 (5.31) |  |
Girls | ||||||
 Cigarette use | ||||||
  Yes(n = 121) | 63 (52.06) | <0.001 | 49 (40.50) | <0.001 | 47 (38.84) | <0.001 |
  No(n = 7253) | 1378 (18.90) |  | 872 (12.05) |  | 712 (9.82) |  |
 Alcohol use | ||||||
  Yes (n = 54) | 26 (48.15) | <0.001 | 23 (42.59) | <0.001 | 23 (42.59) | <0.001 |
  No (n = 7320) | 1405 (19.19) |  | 898 (12.27) |  | 736 (10.05) |  |
 Ketamine use | ||||||
  Yes (n = 28) | 13 (46.43) | <0.001 | 10 (33.33) | 0.003 | 9 (47.37) | 0.002 |
  No (n = 7346) | 1418 (19.30) |  | 913 (12.43) |  | 750 (10.21) |  |
 MDMA use | ||||||
  Yes (n = 31) | 12 (34.48) | 0.027 | 10 (28.57) | 0.009 | 9 (25.71) | 0.007 |
  No (n = 7343) | 1419 (19.34) |  | 911 (12.41) |  | 750 (10.21) |  |