Table 4.
Final Multiple Regression Model for Square-Root Transformed Cotinine in 256 Male Smokeless Tobacco Users
| Variable | Parameter Estimate | S.E. | t-statistic | p-value |
|---|---|---|---|---|
| Demographic Characteristics | ||||
| Age | 0.17 | 0.04 | 3.91 | 0.0001 |
| Marital Status | ||||
| Divorced/Widowed/Separated | -- | |||
| Married | −2.36 | 1.19 | −1.98 | 0.049 |
| Single | −3.42 | 1.54 | −2.22 | 0.028 |
| Occupation | ||||
| Professional | -- | |||
| Skilled labor | 2.92 | 1.24 | 2.35 | 0.020 |
| Unskilled labor | 1.63 | 1.38 | 1.19 | 0.236 |
| Tobacco Use Characteristics | ||||
| Quit attempts in the past year | ||||
| 0 | -- | |||
| ≥ 1 | −3.27 | 0.91 | −3.59 | 0.0004 |
| Tobacco Dependence Score | 1.27 | 0.29 | 4.41 | <0.0001 |
| Psychosocial Characteristic | ||||
| Center for Epidemiologic Studies Depression Scale | −0.14 | 0.06 | −2.42 | 0.016 |
Adjusted R² = 0.27