Table 2.
Weighted and Unweighted Covariates for Nurse Practitioners and Primary Care Physician Assigned Beneficiaries
| Characteristic of Beneficiaries | Unweighted | Weighted | ||||
|---|---|---|---|---|---|---|
| Primary Care Physician (%) | NP (%) | p‐value | Primary Care Physician (%) | NP (%) | p‐value | |
| Demographic characteristics | ||||||
| Female | 62.3 | 66.2 | <.0001 | 66.4 | 66.2 | .29 |
| White | 86.6 | 83.5 | <.0001 | 83.4 | 83.5 | .78 |
| Mean age (years) | 73.6 | 72.0 | <.0001 | 71.8 | 71.9 | .03 |
| Dually eligible for Medicare and Medicaid | 26.4 | 40.4 | <.0001 | 40.7 | 40.4 | .09 |
| Rural | 2.6 | 16.0 | <.0001 | 4.3 | 4.2 | .08 |
| CMS region | ||||||
| Region 1 | 7.5 | 6.6 | <.0001 | 6.7 | 6.6 | .70 |
| Region 2 | 5.9 | 5.7 | .13 | 5.7 | 5.7 | .73 |
| Region 3 | 13.3 | 6.9 | <.0001 | 6.9 | 6.9 | .95 |
| Region 4 | 26.0 | 29.7 | <.0001 | 29.5 | 29.6 | .32 |
| Region 5 | 20.1 | 18.0 | <.0001 | 17.9 | 18.0 | .72 |
| Region 6 | 7.9 | 11.3 | <.0001 | 11.5 | 11.4 | .37 |
| Region 7 | 6.1 | 7.3 | <.0001 | 7.3 | 7.3 | .76 |
| Region 8 | 6.6 | 9.7 | <.0001 | 9.8 | 9.7 | .37 |
| Region 9 | 6.4 | 4.5 | <.0001 | 4.5 | 4.5 | .83 |
| Elixhauser comorbidity | ||||||
| Congestive heart failure | 21.0 | 19.0 | <.0001 | 18.8 | 18.8 | .81 |
| Valve disorders | 17.3 | 10.7 | <.0001 | 10.7 | 10.7 | .93 |
| Pulmonary circulation disease | 6.3 | 3.9 | <.0001 | 3.9 | 3.9 | .79 |
| Peripheral vascular disease | 24.1 | 23.1 | <.0001 | 23.0 | 23.0 | .49 |
| Hypertension | 77.5 | 70.1 | <.0001 | 69.9 | 70.1 | .31 |
| Complex hypertension | 4.6 | 3.7 | <.0001 | 3.7 | 3.7 | .91 |
| Paralysis | 4.3 | 5.1 | <.0001 | 5.1 | 5.1 | .48 |
| Neurological disorders | 23.5 | 27.3 | <.0001 | 27.5 | 27.3 | .41 |
| Chronic pulmonary disease | 30.0 | 26.1 | <.0001 | 26.1 | 26.1 | .71 |
| Diabetes w/o complications | 36.8 | 32.6 | <.0001 | 32.6 | 32.6 | .95 |
| Diabetes w/complications | 14.8 | 12.7 | <.0001 | 12.7 | 12.7 | .86 |
| Hypothyroidism | 23.5 | 21.5 | <.0001 | 21.5 | 21.5 | .98 |
| Renal failure | 15.6 | 13.1 | <.0001 | 13.1 | 13.1 | .94 |
| Liver disease | 3.3 | 2.8 | <.0001 | 2.9 | 2.9 | .85 |
| Bleeding ulcer | 0.24 | 0.15 | <.0001 | 0.15 | 0.15 | .96 |
| AIDS | 0.32 | 1.10 | <.0001 | 1.1 | 1.1 | .63 |
| Lymphoma | 1.15 | 0.74 | <.0001 | 0.75 | 0.75 | .85 |
| Metastatic cancer | 2.1 | 1.5 | <.0001 | 1.5 | 1.5 | .95 |
| Solid tumor w/o metastasis | 11.8 | 7.7 | <.0001 | 7.7 | 7.7 | .74 |
| Rheumatoid arthritis | 6.2 | 4.6 | <.0001 | 4.6 | 4.6 | .93 |
| Coagulopathy | 6.5 | 4.9 | <.0001 | 4.9 | 4.9 | .82 |
| Obesity | 8.3 | 7.6 | <.0001 | 7.7 | 7.6 | .41 |
| Weight loss | 9.9 | 10.8 | <.0001 | 10.7 | 10.7 | .92 |
| Fluid disorders | 23.7 | 20.3 | <.0001 | 20.3 | 20.2 | .86 |
| Anemia | 2.6 | 1.8 | <.0001 | 1.8 | 1.8 | .94 |
| Deficiency anemia | 30.4 | 27.9 | <.0001 | 27.8 | 27.9 | .63 |
| Alcohol abuse | 2.0 | 2.0 | .19 | 2.0 | 2.0 | .81 |
| Drug abuse | 2.5 | 2.6 | .49 | 2.6 | 2.6 | .52 |
| Psychoses | 16.6 | 19.3 | <.0001 | 19.5 | 19.3 | .13 |
| Depression | 18.9 | 20.8 | <.0001 | 21.0 | 20.8 | .13 |
Sidak adjusted p‐value = 0.0012205.
Bonferroni adjusted p‐value = 0.0011905.