Table 10. Regressions of cost and charge ratios on operating cost weights for diagnosis-related groups.
| Dependent variables | Constant | Coefficient of operating cost weights | R2 |
|---|---|---|---|
| (1) Total charges-to-operating cost ratio | 1.40 | .0351 (13.0) |
.32 |
| (2) Total cost-to-operating cost ratio | 1.13 | .0096 (6.38) |
.10 |
| (3) Total charges-to-total cost ratio | 1.24 | .0200 (9.24) |
.19 |
| (4) CCP (Total charges-to-total cost ratio with mean charge-to-cost ratios and DRG-specific cost proportions) | 1.23 | .0221 (11.8) |
.28 |
| (5) CCR (Total charges-to-total cost ratio with DRG-specific charge-to-cost ratios and mean cost proportions) | 1.25 | .0052 (3.69) |
.03 |
NOTES: DRG is diagnosis-related group.
t-statistics are shown in parentheses. The number of observations in all 5 equations is 358—the number of DRG's used throughout this analysis.