Table 3.
Regression-Adjusted Differences in Total Charges
| Percent Effect on Individual’s Undiscounted Hospital Charge (95% Confidence Interval) | ||
|---|---|---|
| Individual’s Principal Payer: | ||
| Private Insurance | 10.7% ↑ (1.0% to 20.4%) | P=0.03 |
| Medicare | 8.9% ↑ (0.1% to 17.6%) | P=0.05 |
| Medicaid | 3.5% ↑ (−6.0% to 12.9%) | P=0.47 |
| Self-Pay (i.e., uninsured) | ||
| Reference Category | ||
| Fixed Effect Controls: | ||
| Sex | Included | |
| Age (in years) | Included | |
| Length of Stay (in days) | Included | |
| Priority of Admission | Included | |
| Principal Diagnosis | Included | |
| APR DRG/SOI Combinationa | Included | |
| Hospital of Admission | Included | |
|
| ||
| R-Squared | 0.685 | |
| Observations | 4,712,790 | |
a
All Patient Refined Diagnosis Related Group (APR DRG); Severity of Illness (SOI)