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. 2015 Mar 8;10:9. doi: 10.1186/s13011-015-0003-8

Table 3.

Gambling participation, at-risk/problem gambling and substance use among adolescents by gender

All Boys Girls
n (%, CI) n (%, CI) n (%, CI)) Significance
Gambling frequency, past-year (n=956) Chi=77.263, df=3, p≤0.001
 No gambling 463 (48.4±3.1) 185 (37.4±4.3) 278 (60.2±4.5)
 Once or twice 298 (31.2±2.9) 160 (32.4±4.1) 138 (29.9±4.2)
 Sometimes 167 (17.5±2.4) 123 (24.9±3.8) 44 (9.5±2.7)
 Often 28 (2.9±1.1) 26 (5.3±2.0) 2 (0.4±0.6)
Past-year at-risk/problem gambling (DSM- IV-MR-J) (n=956) Chi=40.892, df=1, p≤0.001
 At-risk/problem gambling (score ≥2) 76 (7.9±1.7) 66 (13.4±3.0) 10 (2.2±1.3)
 No gambling or no risk/problem (score 0–1) 880 (92.1±1.7) 428 (86.6±3.0) 452 (97.8±1.3)
Smoking (n=946) Chi=4.512, df=1, p=0.041
 Yes 76 (8.0±1.7) 48 (9.9±2.7) 28 (6.1±2.2)
 No 870 (92.0±1.7) 439 (90.1±2.7) 431 (93.9±2.2)
Drinking for intoxication (n=949) Chi=2.298, df=1, p=0.138
 Yes 84 (8.9±1.8) 50 (10.2±2.7) 34 (7.4±2.4)
 No 865 (91.1±1.8) 440 (89.8±2.7) 425 (92.6±2.4)

Significance (p) is determined by Chi-squared test; N=988; CI, Confidence Intervals.