Characteristic | Sole CC (n = 114) | Sole EC (n = 178) | Dual Users (CC and EC) (n = 130) | Chi-Square P-value |
---|---|---|---|---|
Form |  |  |  | < 0. 001 |
 Form 1 | 6 | 20 | 9 |  |
 Form 2 | 34 | 36 | 24 |  |
 Form 3 | 36 | 16 | 38 |  |
 Form 4 | 31 | 61 | 33 |  |
 Form 5 | 7 | 45 | 26 |  |
Age |  |  |  | < 0. 001 |
 13 | 6 | 19 | 9 |  |
 14 | 34 | 35 | 24 |  |
 15 | 36 | 18 | 36 |  |
 16 | 31 | 58 | 34 |  |
 17 | 7 | 48 | 27 |  |
Gender |  |  |  | < 0. 001 |
 Male | 111 | 164 | 106 |  |
 Female | 3 | 14 | 24 |  |
Ethnicity |  |  |  | < 0. 001 |
 Bumiputra | 106 | 115 | 110 |  |
 Non-bumiputra | 8 | 63 | 20 |  |
Daily Pocket Allowance (MYR) | Â | Â | Â | 0.305 |
 < 2 | 10 | 6 | 2 |  |
 2- < 5 | 52 | 78 | 38 |  |
 5- < 10 | 42 | 74 | 42 |  |
 ≥10 | 10 | 20 | 8 |  |
Household Monthly Family Income (MYR) | Â | Â | Â | 0.005 |
 1000 and below | 15 | 5 | 7 |  |
 1001-RM 4000 | 91 | 148 | 108 |  |
 4000 and above | 8 | 25 | 15 |  |
Part-time Worker | Â | Â | Â | 0.003 |
 Yes | 22 | 11 | 18 |  |
 No | 92 | 167 | 112 |  |
HONC |  |  |  | < 0. 001 |
 Not Hooked (< 1) | 10 | 67 | 13 |  |
 Hooked (≥1) | 104 | 111 | 117 |  |
CO ppm |  |  |  | < 0. 001 |
 Non-Smoker (1–3) | 75 | 164 | 98 |  |
 Light Smoker (4–6) | 28 | 11 | 21 |  |
 Regular Smoker (≥7) | 11 | 3 | 11 |  |