| 3 Months | 1 Year | 5 Years | 10 Years | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Tx 2006 - 2007) | (Tx 2006 - 2007) | (Tx 2002 - 2007) | (Tx 1997 - 2007) | ||||||||||
| N | % | Std. Err. | N | % | Std. Err. | N | % | Std. Err. | N | % | Std. Err. | ||
| Total | All | 3,547 | 92.1% | 0.5% | 3,547 | 85.4% | 0.6% | 9,510 | 57.4% | 0.7% | 15,438 | 28.6% | 0.7% |
| Yearly Center Volume | 0-12 | 30 | 90.0% | 5.5% | 30 | 86.3% | 6.4% | 67 | 47.8% | 9.1% | 222 | 32.0% | 4.8% |
| 13-28 | 116 | 87.9% | 3.0% | 116 | 82.7% | 3.5% | 430 | 56.6% | 3.5% | 917 | 27.4% | 2.7% | |
| 29-47 | 321 | 92.8% | 1.4% | 321 | 83.4% | 2.1% | 918 | 54.9% | 2.2% | 1,873 | 28.2% | 2.1% | |
| 48-81 | 580 | 94.0% | 1.0% | 580 | 88.6% | 1.3% | 1,880 | 58.4% | 1.6% | 3,332 | 28.0% | 1.5% | |
| 82+ | 2,500 | 91.8% | 0.5% | 2,500 | 85.0% | 0.7% | 6,215 | 57.6% | 0.9% | 9,094 | 28.8% | 0.9% | |