Table 1 Comparisons of substance use and suicidal behavior between girls and boys
|  | Girls (n = 7374) n (%) | Boys (n = 6611) n (%) | χ 2 | P |
|---|---|---|---|---|
Cigarette use | 121(1.64) | 311(4.70) | 109.27 | <0.001 |
Alcohol use | 54(0.73) | 112(1.69) | 27.50 | <0.001 |
MDMA use | 31(0.42) | 29(0.44) | 0.03 | 0.898 |
Ketamine use | 28(0.38) | 23(0.35) | 0.10 | 0.779 |
Suicidal ideation | 1431(19.41) | 800(12.10) | 138.74 | <0.001 |
Suicidal planning | 921(12.49) | 622(9.41) | 33.76 | <0.001 |
Suicidal attempts | 759(10.29) | 358(5.42) | 112.85 | <0.001 |