Table 6.
Dependent variables | |||||
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Knowledge on health risks of active smoking | Knowledge of health risks of secondhand smoking | ||||
Independent variables | Sub-categories | OR** | 95% CI* | OR** | 95% CI* |
Gender | Male | 1 | |||
Female | 0.8 | 0.7–1 | 0.8 | 0.5–1.1 | |
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Age group | 25–34 | 1 | |||
35–44 | 0.8 | 0.6–1 | 3 | 2.2–4.1 | |
45–54 | 0.8 | 0.7–1.1 | 2.6 | 2–3.4 | |
55–64 | 1 | 0.8–1.2 | 3.1 | 2.3–4.1 | |
65 and above | 0.7 | 0.5–0.9 | 1.7 | 1.2–2.2 | |
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Education | Primary | 1 | |||
Lower secondary | 1.6 | 1.3–1.9 | 2.4 | 1.9–3 | |
Upper secondary | 1.7 | 1.3–2.2 | 3.9 | 2.6–5.8 | |
College or above | 1.9 | 1.4–2.5 | 5.7 | 3.7–8.6 | |
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Income | Quintile 5 | 1 | |||
Quintile 1 | 0.7 | 0.6–0.9 | 0.3 | 0.2–0.4 | |
Quintile 2 | 0.8 | 0.6–1 | 0.5 | 0.4–0.7 | |
Quintile 3 | 0.8 | 0.6–0.9 | 0.5 | 0.4–0.7 | |
Quintile 4 | 0.9 | 0.7–1 | 0.7 | 0.5–1 | |
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Ethnic | Kinh | 1 | |||
Non-Kinh ethnic | 0.6 | 0.5–0.7 | 0.3 | 0.3–0.5 | |
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Access to positive information | No | 1 | |||
Yes | 2.4 | 2.1–2.8 | 2.2 | 1.8–2.6 | |
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Access to negative information | No | 1 | |||
Yes | 0.6 | 0.4–1.1 | 0.6 | 0.2–1.8 | |
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Area | Urban | 1 | |||
Rural | 1.1 | 0.9–1.2 | 1 | 0.8–1.2 | |
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Region | Red River Delta | 1 | |||
Northern midland and mountain | 1.2 | 0.9–1.5 | 1.8 | 1.1–2.9 | |
North Central area and Central coastal | 1.2 | 1–1.4 | 1.1 | 0.8–1.5 | |
Central highlands | 1.1 | 0.7–1.6 | 1 | 0.6–1.8 | |
South East | 1 | 0.8–1.3 | 0.6 | 0.5–0.9 | |
Mekong River Delta | 0.8 | 0.6–1 | 0.4 | 0.3–0.6 | |
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Regulation of ‘no smoking at home’ | No | 1 | |||
Yes | 1 | 0.8–1.3 | 0.8 | 0.6–1.2 | |
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Smoking status | Current smokers | 1 | |||
Current non-smokers | 1.6 | 1.3–2 | 1.8 | 1.2–2.7 |
95% confidence interval
odds ratio.
N=9,919 individuals from 656 PSUs of 6 strata.