Table 5.
Variances of the Physician Level Intercept and the Proportion of Physicians Working in One Hospital within Hospitals, in 1999, 2000, and 2001
| 1999 | 2000 | 2001 | |||||
|---|---|---|---|---|---|---|---|
| DRG | Diagnosis/Procedure | Variance | Significance | Variance | Significance | Variance | Significance |
| 88 | Chronic obstructive pulmonary disease | 1.11 (0.08) | 0.60 (0.05) | 0.73 (0.05) | |||
| −2.22 (0.60) | p<.01 | 1.18 (0.53) | p=.03 | −0.36 (0.45) | nsig | ||
| 127 | Congestive heart failure | 0.79 (0.04) | 0.85 (0.04) | 0.88 (0.05) | |||
| −1.39 (0.55) | p=.01 | 0.01 (0.51) | nsig | −1.58 (0.48) | p<.01 | ||
| 209 | Major joint procedures | 0.78 (0.05) | 0.71 (0.05) | 0.55 (0.04) | |||
| −1.00 (0.10) | p<.01 | −0.73 (0.13) | p<.01 | −0.19 (0.17) | nsig | ||
| 358 | Hysterectomy with complications | 0.35 (0.05) | 0.28 (0.03) | 0.21 (0.03) | |||
| −0.35 (0.33) | nsig | −0.63 (0.19) | p<.01 | 0.22 (0.30) | nsig | ||
| 359 | Hysterectomy without complications | 0.17 (0.01) | 0.15 (0.01) | 0.15 (0.01) | |||
| −0.09 (0.06) | nsig | −0.07 (0.07) | nsig | −0.07 (0.07) | nsig | ||
| 370 | Cesarean section with complications | 0.08 (0.02) | 0.08 (0.02) | 0.09 (0.02) | |||
| −0.33 (0.15) | p=.03 | −0.19 (0.19) | nsig | −0.55 (0.16) | p<.01 | ||
| 371 | Cesarean section without complications | 0.03 (0.00) | 0.03 (0.00) | 0.03 (0.00) | |||
| 0.01 (0.02) | nsig | −0.02 (0.02) | nsig | −0.04 (0.01) | p=.01 | ||
DRG, diagnosis-related group; nsig, not significant.