Table 2.
Crude and Adjusted Measurements
| Predictor | Crude parameter estimate (beta) with 95% confidence intervals | P value | Adjusted parameter estimate (beta) with 95% confidence intervals | P value |
|---|---|---|---|---|
|
| ||||
| Age per 10 years | 0.010 (0.007–0.020) | <0.0001 | 0.010 (0.002, 0.020) | 0.018 |
|
| ||||
| Male gender | 0.012 (−0.004, 0.028) | 0.137 | 0.003 (−0.014, 0.020) | 0.727 |
|
| ||||
| Race/ethnicity | ||||
| - White | 0.011 (−0.009, 0.031) | 0.266 | Ref | Ref |
| - Black | −0.017 (−0.038, 0.005) | 0.13 | 0.006 (−0.017, 0.030) | 0.598 |
| - Other | 0.010 (−0.029, 0.049) | 0.599 | 0.017 (−0.027, 0.062) | 0.446 |
|
| ||||
| Hispanic/Latino | 0.005 (−0.037, 0.047) | 0.803 | 0.036 (−0.013, 0.085) | 0.149 |
|
| ||||
| Marital status | ||||
| - Married/cohabitate | 0.006 (−0.011, 0.022) | 0.500 | Ref | Ref |
| - Separated/divorced | −0.005 (−0.025, 0.016) | 0.664 | 0.009 (−0.014, 0.031) | 0.446 |
| - Widowed | 0.001 (−0.023, 0.025) | 0.922 | −0.013 (−0.039, 0.013) | 0.338 |
| - Never married | −0.009 (−0.035, 0.018) | 0.515 | −0.004 (−0.033, 0.025) | 0.784 |
|
| ||||
| Insurance type | ||||
| - Private | 0.008 (−0.008, 0.024) | 0.347 | Ref | Ref |
| - Medicaid | −0.046 (−0.075, −0.018) | 0.002 | −0.026 (−0.058, 0.007) | 0.121 |
| - Medicare | 0.012 (−0.004, 0.028) | 0.138 | −0.002 (−0.023, 0.018) | 0.844 |
| - Self-pay | −0.027 (−0.062, 0.008) | 0.135 | −0.029 (−0.073, 0.015) | 0.202 |
|
| ||||
| Years of education | 0.003 (0.0003, 0.005) | 0.028 | 0.0001 (−0.003, 0.003) | 0.949 |
|
| ||||
| Presence of PCP prior to admission | 0.007 (−0.022, 0.037) | 0.630 | 0.002 (−0.032, 0.036) | 0.888 |
|
| ||||
| Site | −0.050 (−0.065, −0.034) | <0.0001 | −0.038 (−0.056, −0.021) | <0.0001 |
|
| ||||
| Number of preadmission medications | −0.0003 (−0.002, 0.001) | 0.684 | −0.0001 (−0.002, 0.002) | 0.918 |
|
| ||||
| Med understanding score per point | 0.007 (−0.009, 0.023) | 0.390 | 0.006 (−0.011, 0.023) | 0.513 |
|
| ||||
| Health literacy (STOFHLA) score per 10 points | 0.0006 (−0.008, 0.01) | 0.897 | 0.003 (−0.008, 0.01) | 0.644 |
|
| ||||
| Baseline adherence per point | 0.023 (0.016, 0.031) | <0.0001 | 0.017 (0.009, 0.024) | <0.0001 |
|
| ||||
| Cognitive function | 0.004 (−0.022, 0.031) | 0.757 | 0.008 (−0.019, 0.036) | 0.549 |
• For crude estimates, value is category versus absence of parameter in bivariate testing
• For adjusted estimates of categorical variables, value is each category compared to referent category
• Beta-coefficient represents absolute change in adherence (e.g., 0.010 for age means a 1% absolute increase in adherence for every 10 year increase in patient age)