Variables | Abstinence | 95% IC | Log rank (Mantel-Cox) | p | ||||
---|---|---|---|---|---|---|---|---|
Sample size | Number | Rates | Mean | Standard error | ||||
Cigarette brand | ||||||||
Blonde | 105 | 80 | 85% | 7.54 | .54 | 6.48 - 8.59 | 3.931 | .140 |
Black | 12 | 9 | 75% | 5.90 | 1.35 | 3.25 - 8.53 | ||
Rolling | 8 | 6 | 73.1% | 10.50 | 1.50 | 7.56 - 13.44 | ||
Nicotine concentration mg per cigarette | ||||||||
>1 | 23 | 20 | 85% | 6.45 | 1.10 | 4.29 - 8.61 | 1.619 | .44 |
>1 > 1.5 | 99 | 72 | 75% | 7.90 | .56 | 6.82 - 8.99 | ||
>1.5 2 | 3 | 3 | 73.1% | 7.00 | 2.65 | 1.81 - 12.19 | ||
Number of cigarettes smoked daily | ||||||||
> 10 | 20 | 17 | 85% | 7.94 | 1.14 | 5.71 - 10.17 | .186 | .980 |
>10 > 20 | 72 | 54 | 75% | 7.44 | .64 | 6.19 - 8.70 | ||
>20 > 30 | 26 | 19 | 73.1% | 7.58 | 1.13 | 5.37 - 9.78 | ||
>30 | 7 | 5 | 71.4% | 7.60 | 2.69 | 2.32 - 12.88 | ||
Fagerström test score | ||||||||
>6 | 99 | 77 | 77.8% | 7.69 | .54 | 6.63 - 8.75 | .296 | .586 |
>7 | 26 | 18 | 69.2% | 7.06 | 1.14 | 4.83 - 9.28 | ||
Years of smoking | ||||||||
> 10 years | 14 | 12 | 85.7% | 7.17 | 1.47 | 4.28 - 10.05 | 2.560 | .464 |
> 20 years | 28 | 19 | 67.9% | 8.26 | 1.09 | 6.12 - 10.40 | ||
> 30 years | 40 | 33 | 82.5% | 8.21 | .82 | 6.60 - 9.83 | ||
> 30 years | 43 | 31 | 72.1% | 6.61 | .84 | 4.98 - 8.25 | ||
Use of alcohol and/or tranquilizers | ||||||||
Neither | 116 | 87 | 75% | 8.07 | .50 | 7.10 - 9.04 | 17.679 | .001 |
Alcohol | 7 | 7 | 100% | 2.29 | .71 | .89 - 3.69 | ||
Tranquilizers | 2 | 1 | 50% | 1.00 | .00 | 1.00 - 1.00 |