Table 3. Cascade-Attributable Event Rates and Spending Following Routine Urinalysis During an Annual Wellness Visit.
| Event rate per 100 beneficiaries | Exposure group (n = 7515) | Comparison group (n = 67 760) | Cascade-attributable rate | Adjusted cascade-attributable event rate (95% CI)a |
|---|---|---|---|---|
| All eventsb | 29.8 | 21.2 | 8.6 | 5.35 (4.20-6.50) |
| Laboratory tests | 13.4 | 9.0 | 4.4 | 1.73 (1.08-2.39) |
| Imaging | 4.9 | 3.9 | 1.0 | 1.05 (0.54-1.57) |
| Procedures | 2.8 | 2.0 | 0.8 | 0.67 (0.32-1.02) |
| Visits | 7.3 | 5.1 | 2.2 | 1.34 (0.76-1.92) |
| Hospitalizations | <0.20b | 0.13 | NRb | NRb |
| New diagnoses | 1.4 | 1.3 | 0.2 | 0.36 (0.07-0.65) |
| Allowable charges per beneficiary, mean (SD), $ | ||||
| Allowable charges related to cascade events in 90-d period, excluding hospitalizationsc | 26.8 | 16.9 | 9.9 | 7.46 (5.11-9.81) |
| Total Medicare-allowable charges in 90-d period | 2919.4 | 2780.7 | NA | NA |
Abbreviations: ECG, electrocardiogram; HRR, hospital referral region; NA, not applicable; NR, not reported.
a
This multivariable model includes the following covariates: age, sex, race, Medicaid enrollment, disability, Elixhauser condition count, residential setting, region, area-level income, clinician specialty, Accountable Care Organization status, visit co-billed status, HRR random effects, receipt of ECG, and receipt of thyrotropin test.
b
Entries with 11 or fewer events are not reported in accordance with the Centers for Medicare and Medicaid Services data use agreement.
c
To meet this requirement, we excluded hospitalizations from all event totals in this table.