Table 3.
Unadjusted and adjusted predicted percentages of authentication by specific clinical condition.
| Condition group (N=6,012,875)a | Unadjusted predicted percentages of authentication (CI) |
Adjustedb predicted percentages of authentication (CI) |
Difference (adjusted–unadjusted) |
| HIV | 15.33 (14.26-16.46) | 16.20 (15.01-17.46) | 0.87 |
| Hyperlipidemia | 11.78 (10.98-12.64) | 16.11 (14.99-17.30) | 4.33 |
| Spinal cord injury | 16.36 (15.23-17.55) | 15.74 (14.58-16.98) | -0.62 |
| Depression | 15.21 (14.23-16.26) | 15.34 (14.26-16.47) | 0.13 |
| Hypertension | 11.05 (10.30-11.84) | 14.97 (13.92-16.09) | 3.92 |
| Post-traumatic stress disorder | 16.60 (15.56-17.70) | 14.66 (13.62-15.76) | -1.94 |
| Diabetes | 12.51 (11.68-13.39) | 14.53 (13.50-15.62) | 2.02 |
| Anxiety | 15.37 (14.37-16.41) | 13.95 (12.96-15.01) | -1.42 |
| Traumatic brain injury | 16.62 (15.55-17.76) | 13.77 (12.77-14.83) | -2.85 |
| Chronic obstructive pulmonary disease | 11.08 (10.34-11.88) | 13.47 (12.51-14.50) | 2.39 |
| Hepatitis | 10.64 (9.91-11.41) | 13.34 (12.38-14.36) | 2.70 |
| Psychosis | 11.63 (10.85-12.46) | 13.02 (12.09-14.02) | 1.39 |
| Coronary artery disease | 10.26 (9.56-11.00) | 12.78 (11.86-13.76) | 2.52 |
| Congestive heart failure | 9.89 (9.21-10.61) | 12.64 (11.72-13.62) | 2.75 |
| Stroke | 9.64 (8.97-10.35) | 12.37 (11.46-13.33) | 2.73 |
| Drug abuse | 11.04 (10.29-11.83) | 12.29 (11.39-13.24) | 1.25 |
| Alcohol abuse | 10.90 (10.16-11.68) | 12.08 (11.20-13.02) | 1.18 |
| Schizophrenia / schizoaffective disorder | 8.04 (7.47-8.65) | 10.40 (9.62-11.25) | 2.36 |
aAfter excluding patients with missing data for facility or one of the covariates, data for 5,988,043 observations were used for logistic regression analysis. Facility was included as a random effect in both unadjusted and adjusted logistic regression models to adjust for clustering and IPA variation between facilities. For all disease conditions, P<.001 in both unadjusted and adjusted logistic regression analyses, except congestive heart failure (P=.74) in the unadjusted model.
bAdjusted for presence of each other specific clinical condition and demographics including age (continuous), gender, race/ethnicity, economic need, and rural/urban residence. Race/ethnicity includes non-Hispanic white, non-Hispanic African-American, hispanic, other, and unknown/missing with white as reference group.