Table 3.
Survival in surgically managed primary non-small cell lung cancer patients with a clinical stage of IA categorized by patient volume per hospital
| Survival rates (%) and number of subjects at risk | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | 1Y | 2Y | 3Y | 4Y | 5Y | ||||||||||
| Patient Volume | % | 95% CI | na | % | 95% CI | na | % | 95% CI | na | % | 95% CI | na | % | 95% CI | |
| High-volume Hospitals | 2587 | 98.5 | (±0.6) | 1336 | 97.3 | (±0.5) | 614 | 93.9 | (±1.1) | 195 | 92.1 | (±2.9) | 3 | 92.1 | (±2.9) |
| Low-volume Hospitals | 792 | 97.8 | (±1.2) | 427 | 94.9 | (±2.4) | 163 | 90.6 | (±4.5) | 50 | 81.4 | (±11.1) | 18 | 81.4 | (±11.1) |
aNumber at risk.