| Univariable tests | Linear regression model | |
---|---|---|---|
Patient Characteristic | Likert Score, Mean (SE) or r (correlation) | p * | β coefficient (95% CI) |
Age | 0.09 | 0.06 | 0.006 (-0.01, 0.02) |
Gender | Â | 0.05 | -0.45 (-0.80, -0.10) |
   Male (0) | 2.75 (0.13) |  |  |
   Female (1) | 2.42 (0.11) |  |  |
Race/ethnicity | Â | 0.01 | -0.40 (-0.75, -0.05) |
   Non-white (0) | 2.75 (0.13) |  |  |
   White (1) | 2.31 (0.12) |  |  |
Insurance | Â | 1.00 | Â |
   Insured | 2.57 (0.14) |  |  |
   Uninsured | 2.57 (0.11) |  |  |
Education | Â | 0.03 | -0.40 (-0.81, -0.01) |
   Finished high school | 2.44 (0.10) |  |  |
   Did not finish high school | 2.92 (0.19) |  |  |
Smoking-related ICD-9 diagnosis | Â | 0.52 | Â |
   Yes | 2.73 (0.28) |  |  |
   No | 2.55 (0.09) |  |  |
Heavy Smoking Index (HSI) | 0.03 | 0.60 | Â |
Smoking-related symptoms | 0.10 | 0.05 | 0.09 (0.01, 0.16) |