Table 1. Hospital-wide vs Cost Center–Specific CCRs for California Hospitals in Fiscal Year 2015a.
| Type of Facility | Sample Sizeb | Median (Interquartile Range) | |
|---|---|---|---|
| CCR | Deviation From Hospital CCR, %c | ||
| Hospital | 289 | 0.25 (0.21 to 0.30) | NA |
| Surgery and recoveryd | 289 | 0.19 (0.13 to 0.26) | −24.4 (−40.3 to −7.4) |
| Other cost centers | |||
| Computed tomography | 266 | 0.07 (0.05 to 0.09) | −74.0 (−79.1 to −68.2) |
| Anesthesia | 226 | 0.07 (0.04 to 0.14) | −71.3 (−80.7 to −45.2) |
| Clinical laboratory | 289 | 0.15 (0.11 to 0.20) | −41.9 (−52.3 to −28.4) |
| Emergency department | 264 | 0.18 (0.14 to 0.24) | −25.3 (−36.7 to −9.2) |
| Drugs sold to patients | 289 | 0.21 (0.15 to 0.29) | −16.7 (−35.4 to 3.7) |
| Supplies sold to patients (eg, implants) | 238 | 0.33 (0.23 to 0.47) | 32.0 (−6.5 to 78.7) |
| Medical/surgical intensive care unit | 248 | 0.35 (0.29 to 0.45) | 50.3 (24.8 to 77.2) |
| Medical/surgical unit | 270 | 0.39 (0.30 to 0.50) | 59.4 (31.1 to 96.4) |
| Blood bank | 196 | 0.45 (0.29 to 0.64) | 63.4 (2.9 to 162.0) |
Abbreviation: CCR, cost-to-charge ratio.
a
All comparisons between the hospital-wide CCR and cost center–specific CCR had a P value <.001 using the Wilcoxon matched-pairs signed rank test.
b
Sample sizes vary across cost centers based on the number of facilities reporting each cost center.
c
Calculated as ([cost center–specific CCR − hospital-wide CCR]/hospital-wide CCR).
d
Includes inpatient operating rooms that can be used for inpatient or outpatient procedures.