Table 6. Case-mix index values for operating cost weights and total charge weights, by type of hospital, bed size, and hospital teaching status.
| Type of hospital, bed size, and teaching status | Operating cost weights | Total charge weights |
|---|---|---|
|
| ||
| Case-mix index values | ||
| Urban hospital | ||
| Group 1 (0-99 beds) | .9686 | .9657 |
| Group 2 (100-404 beds) | 1.0486 | 1.0526 |
| Group 3 (405-684 beds) | 1.1094 | 1.1208 |
| Group 4 (685 beds or more) | 1.1447 | 1.1623 |
| Rural hospital | ||
| Group 5 (0-99 beds) | .9444 | .9391 |
| Group 6 (100-169 beds) | .9877 | .9863 |
| Group 7 (170 beds or more) | 1.0258 | 1.0278 |
| Teaching status | ||
| Nonteaching hospitals | .9827 | .9808 |
| Teaching hospitals with residents to bed ratio under .25 | 1.0802 | 1.0879 |
| Teaching hospitals with residents to bed ratio over .25 | 1.1410 | 1.1598 |
NOTE: Data are based on the 358 DRG's for which sufficient information was available on the 1981 Medicare provider analysis review file to compute relative weights.