Table 4.
Annual healthcare utilization and mortality (mean ± standard error of mean; N=15,073–15,107)
| Adjusteda |
Unadjusted |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Control group | Primary TKA | Primary THA | Combination group | P value | Control group | Primary TKA | Primary THA | Combination group | P value | |
| Primary care clinic | 3.1±0.02 | 3.3±0.2 | 3.0±0.2 | 3.3±0.2 | 0.2805 | 3.1±0.02 | 4±0.2 | 3±0.3 | 3.8±0.2 | <0.0001 |
| Medical subspecialty clinic | 1.7±0.03 | 1.7±0.2 | 2.1±0.3 | 1.8±0.2 | 0.5930 | 1.7±0.04 | 2±0.3 | 2.4±0.5 | 3±0.4 | 0.0012 |
| Surgery clinic | 2±0.02 | 2.5±0.2 | 2.3±0.2 | 2.3±0.2 | 0.0100 | 1.9±0.03 | 4±0.2 | 4.2±0.3 | 5.1±0.2 | <0.0001 |
| ≥1 mental health clinic visits | 17.5% | 11.6% | 10.9% | 12.3% | 0.0039 | 8.4% | 8.3% | 10.3% | 10.2% | 0.8714 |
| ≥1 hospitalizations | 15.7% | 24.1% | 19.1% | 25.6% | <0.0001 | 22.0% | 25.2% | 21.7% | 23.4% | 0.7385 |
| 1-year mortalityb | 2.8% | 1.9% | 0.6% | 2.7% | 0.1736 | 3.8% | 3.6% | 0.9% | 5.9% | 0.1242 |
a
Adjusted for age, gender, race, education level, employment status, marital status; smoking status, self-report of six physician-diagnosed comorbidities (asthma/COPD, arthritis, depression, diabetes, heart disease, hypertension); percent service connection and single vs. multiple-site use; and respective prior utilization in the pre-survey year
b
models adjusted for variables listed above plus all pre-survey year inpatient and outpatient utilization and physical and mental component summary scores of the SF-36 V