Table 2 Distribution of male smokers by age of smoking initiation and number of cigarettes smoked per day
From: Epidemiology of smoking among Malaysian adult males: prevalence and associated factors
| Â | n (%) | Estimated population | 95% CI |
|---|---|---|---|
Age started smoking (years) | Â | Â | Â |
 4–6 | 12(0.1) | 4175 | 0.1–0.3 |
 7–9 | 51(0.6) | 18002 | 0.5–0.8 |
 10–12 | 448(5.8) | 164112 | 5.3–6.4 |
 13–15 | 1501(19.7) | 552322 | 18.8–20.6 |
 16–18 | 2558(33.8) | 949289 | 32.7–34.9 |
 19–21 | 1869(24.3) | 683068 | 23.3–25.3 |
 22–24 | 442(5.8) | 161312 | 5.3–6.3 |
 25 and above | 762(9.9) | 276913 | 9.2–10.6 |
No. of cigarettes smoked per day | Â | Â | Â |
 1–5 | 1835(24.2) | 661943 | 23.2–25.3 |
 6–10 | 2338(31.3) | 855871 | 30.3–32.4 |
 11–15 | 1423(19.4) | 530519 | 18.5–20.4 |
 16–20 | 1420(19.4) | 529399 | 18.4–20.4 |
 21 and more | 415(5.6) | 154046 | 5.1–6.2 |