Table 1 Prevalence of never, former, and current smokers according to four different definitions
Definitions | Definition 1 Based on having smoked and smoking daily or occasionally | Definition 2 Based on having smoked and havingsmoked in the last month | Definition 3 Based on having smoked at least 100 cigarettes and smoking daily or occasionally | Definition 4 Based on having smoked at least 100 cigarettes and having smoked in the last month | ||||
Never smokers | Experimental smokers or those who have never smoked cigarettes | Experimental smokers or those who have never smoked cigarettes | Those who have not smoked 100 cigarettes in their lifetime | Those who have not smoked 100 cigarettes in their lifetime | ||||
Former smokers | Having smoked, but currently do not smoke daily nor occasionally | Having smoked, but not in the last 30 days | Those who smoked ≥ 100 cigarettes in their lifetime, but currently do not smoke daily nor occasionally | Those who smoked ≥ 100 cigarettes in their lifetime, but currently do not smoke daily nor occasionally | ||||
Current smokers | Those who currently smoke daily or occasionally | Those who have smoked in the last month | Those who smoked ≥100 cigarettes in their lifetime, AND currently smoke daily or occasionally | Those who smoked ≥100 cigarettes in their lifetime, AND have smoked in the last month | ||||
Prevalence rates In our population, per study group | N | % (95% CI) | N | % (95% CI) | N | % (95% CI) | N | % (95% CI) |
Prevalence of never smokers | ||||||||
Urban | 61 | 31.0 (24.5–37.4) | 61 | 31.0 (24.5–37.4) | 132 | 67.3 (60.8–73.9) | 132 | 67.3 (60.8–73.9) |
Migrant | 231 | 39.9 (35.9–43.9) | 231 | 39.9 (35.9–43.9) | 492 | 86.2 (83.3–89.0) | 492 | 86.2 (83.3–89.0) |
Rural | 96 | 48.0 (41.1–54.9) | 96 | 48.0 (41.1–54.9) | 175 | 93.1 (89.5–96.7) | 175 | 93.1 (89.5–96.7) |
Prevalence of former smokers | ||||||||
Urban | 85 | 43.1 (36.2–50.1) | 94 | 47.7 (40.7–54.7) | 29 | 14.8 (9.8–19.8) | 34 | 17.3 (12.0–22.6) |
Migrant | 251 | 43.4 (39.3–47.4) | 275 | 47.5 (43.4–51.6) | 39 | 6.8 (4.8–8.9) | 42 | 7.4 (5.2–9.5) |
Rural | 41 | 20.5 (14.9–26.1) | 70 | 35.0 (28.4–41.6) | 4 | 2.1 (0.1–4.2) | 5 | 2.7 (0.4–5.0) |
Prevalence of current smokers | ||||||||
Urban | 51 | 25.9 (19.8–32.0) | 42 | 21.3 (15.6–27.0) | 35 | 17.9 (12.5–23.2) | 30 | 15.3 (10.3–20.3) |
Migrant | 97 | 16.8 (13.7—19.8) | 73 | 12.6 (9.9—15.3) | 40 | 7.0 (4.9—9.1) | 37 | 6.5 (4.5—8.5) |
Rural | 63 | 31.5 (25.1—37.9) | 34 | 17.0 (11.8—22.2) | 9 | 4.8 (1.7—7.8) | 8 | 4.3 (1.4—7.1) |