TABLE 3—
Baseline Levels and Multiplicative Effect of Demographic Variables on Estimated Mean Physician Distrust, by Race/Ethnicity: Community Tracking Study, United States, 1998–1999
| White, mean (95% CI) | Black, mean (95% CI) | Hispanic, mean (95% CI) | Pa | |
| Baseline physician distrust scoreb | 17.4 (16.4, 18.5) | 19.7 (18.3, 21.3) | 18.9 (17.7, 20.2) | |
| Gender | .01 | |||
| Men | 1.00 | 1.00 | 1.00 | |
| Women | 0.97 (0.95, 0.99) | 0.91 (0.88, 0.95) | 0.95 (0.92, 0.99) | |
| Age, y | NS | |||
| < 40 | 1.00 | |||
| 40–60 | 0.98 (0.96, 0.99) | |||
| > 60 | 0.94 (0.91, 0.97) | |||
| Education level | .063 | |||
| < High school degree | 1.00 | 1.00 | 1.00 | |
| High school degree | 0.97 (0.93, 1.02) | 0.99 (0.93, 1.06) | 0.98 (0.93, 1.04) | |
| College degree or higher | 0.97 (0.93, 1.02) | 0.94 (0.88, 1.00) | 0.93 (0.88, 0.98) | |
| Insurance status | .037 | |||
| None | 1.00 | 1.00 | 1.00 | |
| Medicaid/Medicare | 0.93 (0.89, 0.97) | 0.97 (0.90, 1.05) | 0.98 (0.92, 1.05) | |
| Private | 0.95 (0.91, 0.99) | 0.92 (0.86, 0.97) | 0.96 (0.91, 1.03) | |
| Income percentage quartilesc | ||||
| ≤ 25 | 1.00 | NS | ||
| 26–50 | 0.99 (0.96, 1.02) | |||
| 51–76 | 0.98 (0.95, 1.00) | |||
| ≥ 75 | 0.96 (0.94, 0.99) |
Note. CI = confidence interval; NS = not significant. The baseline was the average across all sites of men who were young, uninsured, uneducated (< high school), and poor (≤ 25% income quartile).
aP values are shown for test of the interaction between the sociodemographic characteristics and race/ethnicity in the final model.
bFor any 1 group, the mean is calculated by multiplying the baseline value by the appropriate factors; e.g., mean distrust for young (< 40 years), college-educated Black women with private insurance in the 26th to 50th percentile of income is 19.7 × 0.91 × 0.94 × 0.92 × 0.99 = 15.3.
cReported annual household income was divided by the US Census Bureau 1998 poverty level for the corresponding family size and the categorized according to percentage quartiles.