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. 2018 Mar 13;10:172–175. doi: 10.1016/j.pmedr.2018.03.003

Table 2.

Hierarchical logistic regressions predicting healthcare provider advice to quit smoking.

Variables & Step Entered All Smokers (n = 512)
African American Smokers (n = 386)
Whites Smokers (n = 126)
β OR p 95% CI β OR p 95% CI β OR p 95% CI
STEP 1. Access to Healthcare
 Health Insurance: No (Reference)
 Yes 0.287 1.333 0.239 0.826,2.151 0.256 1.292 0.364 0.743,2.248 0.594 1.812 0.287 0.606,5.412
 Regular Doctor: No (Reference)
 Yes 0.556 1.743 0.024 1.075,2.825 0.481 1.618 0.093 0.923,2.836 0.875 2.400 0.122 0.792,7.278
STEP 2. Demographics
 Gender: Men (Reference)
 Women 0.625 1.868 0.006 1.200,2.910 0.747 2.110 0.004 1.275,3.492 0.189 1.208 0.714 0.439,3.330
 Education: ≤ High School (Reference)
 Some College to Bachelor's 0.296 1.344 0.194 0.860,2.101 0.311 1.365 0.227 0.824,2.261 −0.186 0.830 0.753 0.261,2.643
 Graduate degree 0.627 1.871 0.323 0.540,6.482 0.617 1.854 0.485 0.327,10.493 0.294 1.342 0.776 0.177,10.162
 Age: 18–24 (Reference)
 25–45 0.930 2.534 0.009 1.256,5.113 1.205 3.336 0.006 1.408,7.902 0.374 1.454 0.608 0.347,6.084
 46–64 1.147 3.150 0.003 1.469,6.753 1.384 3.991 0.003 1.598,9.967 0.685 1.985 0.445 0.342,11.513
 ≥65 0.649 1.913 0.353 0.487,7.517 0.678 1.969 0.385 0.427,9.083 19.38 None 0.999 0.000,0.000
STEP 3. Health Status
 Hypertension: No (Reference)
 Yes 0.410 1.508 0.109 0.913,2.490 0.520 1.683 0.065 0.969,2.922 −0.120 0.997 0.855 0.245,3.214
 Diabetes: No (Reference)
 Yes 0.663 1.941 0.063 0.965,3.905 0.687 1.988 0.083 0.915,4.321 0.756 2.129 0.393 0.377,12.030
 Obesity: No (Reference)
 Yes 0.376 1.456 0.134 0.891, 2.379 0.217 1.403 0.217 0.819,2.404 0.824 2.280 0.266 0.533,9.752
STEP 4. Daily Smoking
 ≤10 cigarettes (Reference)
 ≥11 0.573 1.773 0.017 1.109,2.836 0.518 1.679 0.059 0.981,2.874 0.723 2.060 0.169 0.736,5.765
STEP 5. Race
 African American (Reference)
 White 0.873 2.393 0.002 1.382, 4.144

Statistically significant.