Table 4 First Set of Regression Results. Control Variables Only (Second Set from Same Regression included in Table 5)a
Covariate | Linear Regression Coefficient | Lower 95% Confidence Limit | Upper 95% Confidence Limit |
|---|---|---|---|
age <35 | 0.146* | 0.009 | 0.283 |
age 35 to 44 | 0.100** | 0.038 | 0.161 |
age 45 to 54 | referent | referent | referent |
age 55 to 64 | 0.084* | 0.014 | 0.153 |
age 65 to 74 | 0.132* | 0.030 | 0.235 |
age 75+ | 0.104 | -0.113 | 0.321 |
White, non-Hispanic | referent | referent | referent |
African-American, non-Hispanic | -0.096 | -0.204 | 0.013 |
Hispanic | 0.011 | -0.079 | 0.102 |
Asian, Pacific Island, non-Hispanic | 0.017 | -0.076 | 0.109 |
Other race/ethnic | -0.185** | -0.310 | -0.060 |
Male | 0.057 | -0.012 | 0.125 |
New England | -0.024 | -0.159 | 0.110 |
Middle Atlantic | -0.065 | -0.168 | 0.038 |
East North Central | -0.001 | -0.123 | 0.122 |
West North Central | 0.082 | -0.075 | 0.239 |
South Atlantic | -0.058 | -0.178 | 0.061 |
East South Central | 0.143* | 0.033 | 0.252 |
West South Central | 0.017 | -0.099 | 0.133 |
Mountain | -0.001 | -0.142 | 0.139 |
Pacific | referent | referent | referent |
Rural/town | 0.054 | -0.054 | 0.163 |
Board certified | 0.057 | -0.019 | 0.133 |
Foreign school graduate | -0.053 | -0.134 | 0.028 |
Continuous income up to $400,000 ($100,000 units) | 0.073*** | 0.035 | 0.111 |
Top income $400,000+, binary | 0.005 | -0.112 | 0.123 |
Work hours ≤ 40 | 0.017 | -0.045 | 0.080 |
Work hours 41-50 | referent | referent | referent |
Work hours 51-60 | -0.114* | -0.204 | -0.024 |
Work hours >60 | -0.201*** | -0.280 | -0.122 |
Full owner | -0.076* | -0.141 | -0.010 |
Partner | 0.023 | -0.052 | 0.099 |
Currently employed by medical school | 0.105* | 0.001 | 0.209 |
Percent revenue managed care 20 percent units | -0.020* | -0.038 | -0.002 |