Table 2.
Compliance with each quality metric stratified by hospital volume.
| Low Volume |
Low Intermediate Volume |
Intermediate Volume |
High Intermediate Volume |
High Volume |
P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| ||||||||||||
| All | Hospitals | 299 | 465 | 157 | 194 | 153 | ||||||
| Lymph node dissection for early-stage tumors | Hospitals | 252 | 454 | 157 | 194 | 153 | ||||||
| Mean (SD) | 50.9% | (38.2%) | 58.1% | (27.1%) | 68.6% | (19.5%) | 72.6% | (15.9%) | 78.2% | (11.6%) | <0.001 | |
| Cytoreduction for advanced stage tumors | Hospitals | 272 | 465 | 157 | 194 | 153 | ||||||
| Mean (SD) | 59.7% | (33.0%) | 65.7% | (22.7%) | 75.4% | (15.4%) | 80.3% | (13.0%) | 82.2% | (12.4%) | <0.001 | |
| Avoidance of chemotherapy for low risk, early stage tumors | Hospitals | 50 | 202 | 123 | 187 | 150 | ||||||
| Mean (SD) | 90.0% | (30.3%) | 86.5% | (30.7%) | 87.9% | (26.6%) | 82.2% | (23.4%) | 83.9% | (17.2%) | 0.16 | |
| Chemotherapy for high risk, early stage tumors | Hospitals | 117 | 327 | 149 | 193 | 153 | ||||||
| Mean (SD) | 69.2% | (43.3%) | 69.3% | (36.8%) | 71.5% | (27.6%) | 72.5% | (23.8%) | 75.7% | (17.8%) | 0.28 | |
| Advanced stage chemotherapy | Hospitals | 269 | 465 | 157 | 194 | 153 | ||||||
| Mean (SD) | 79.0% | (27.5%) | 80.5% | (17.1%) | 81.0% | (14.0%) | 82.8% | (12.9%) | 85.2% | (10.0%) | 0.01 | |
| Overall quality | Hospitals | 287 | 465 | 157 | 194 | 153 | ||||||
| Mean (SD) | 64.2% | (24.5%) | 69.6% | (14.7%) | 76.0% | (11.4%) | 79.2% | (9.5%) | 82.2% | (7.7%) | <0.001 | |
The number of patients and hospitals varied by quality measures. ANOVA tests were used to make the comparison by hospital volume groups.