Logistic regressions of behaviour of purchasing smuggled cigarettes of 437 Taiwan male imported cigarette smokers in year 2000
| Model 1 | Model 2 | Model 3 | ||||
|---|---|---|---|---|---|---|
| Independent variables | OR | 95% CI | OR | 95% CI | OR | 95% CI |
| CI, confidence interval; OR, odds ratio | ||||||
| Demographic factors | ||||||
| Age (years) | ||||||
| 18–34 | 1.00 | |||||
| 35–64 | 0.74 | (0.46 to 1.20) | 0.74 | (0.46 to 1.18) | 0.71 | (0.44 to 1.15) |
| Marital status | ||||||
| No | 1.00 | |||||
| Yes | 0.86 | (0.52 to 1.36) | 0.86 | (0.54 to 1.37) | 0.89 | (0.56 to 1.42) |
| Education | ||||||
| Preliminary or lower | 1.00 | |||||
| Junior high school | 0.30 | (0.14 to 0.67) | 0.35 | (0.16 to 0.77) | 0.34 | (0.15 to 0.74) |
| High school | 0.59 | (0.28 to 1.26) | 0.66 | (0.31 to 0.38) | 0.68 | (0.32 to 1.42) |
| Undergraduate or graduate | 0.54 | (0.24 to 1.21) | 0.61 | (0.28 to 1.33) | 0.61 | (0.28 to 1.35) |
| Urbanisation | ||||||
| Metropolitan areas | 1.00 | |||||
| General counties | 0.88 | (0.51 to 1.51) | 0.87 | (0.52 to 1.48) | 0.87 | (0.52 to 1.48) |
| Rural areas | 1.01 | (0.52 to 1.97) | 1.03 | (0.53 to 1.99) | 1.01 | (0.53 to 1.96) |
| Employed | ||||||
| No | 1.00 | |||||
| Yes | 1.20 | (0.53 to 2.71) | 1.41 | (0.65 to 3.05) | 1.46 | (0.67 to 3.17) |
| Economic factors | ||||||
| Personal monthly income | ||||||
| <NT$20K | 1.00 | |||||
| NT$20–40K | 1.31 | (0.61 to 2.80) | – | – | ||
| ⩾NT$40K | 1.23 | (0.55 to 2.75) | – | – | ||
| Ln personal monthly Income | – | 1.03 | (0.74 to 1.43) | 1.00 | (0.72 to 1.38) | |
| Ln estimated retail cigarette price per pack | 2.77 | (1.14 to 6.72) | 2.60 | (1.08 to 6.26) | – | |
| Ln reported retail cigarette price per pack | – | – | 3.96 | (1.01 to 15.46) | ||
| Smoking behaviour | ||||||
| Smoking >20 cigarettes daily | ||||||
| No | 1.00 | |||||
| Yes | 0.69 | (0.36 to 1.34) | 0.64 | (0.33 to 1.25) | 0.64 | (0.32 to 1.25) |
| Monthly expenditure on smoking | ||||||
| NT$1–1000 | 1.00 | |||||
| ⩾NT$1000 | 2.34 | (1.48 to 3.70) | – | – | ||
| Ln monthly expenditure on smoking | – | 1.51 | (1.21 to 1.90) | 1.52 | (1.20 to 1.92) | |
| Other factors | ||||||
| Attitude toward cigarette taxation | ||||||
| Favour | 1.00 | |||||
| No opinion | 1.68 | (0.94 to 3.01) | 1.59 | (0.90 to 2.81) | 1.58 | (0.90 to 2.80) |
| Oppose | 1.64 | (0.99 to 2.73) | 1.69 | (1.01 to 2.79) | 1.66 | (1.01 to 2.75) |
| Betalnut chewer | ||||||
| No | 1.00 | |||||
| Yes | 1.79 | (1.09 to 2.91) | 1.80 | (1.11 to 2.90) | 1.71 | (1.06 to 2.77) |
| χ2(16)=50.88 | χ2(15)=56.34 | χ2(15)=52.54 | ||||