Table 1.
Rates of New ESA Treatment and Overall ESA Prescription by Ontario Regional Cancer Center, January 1, 2008 to December 31, 2009
| Regional Cancer Center | No. Patients | New ESA Users (N = 1,221) |
All ESA Prescriptions (N = 7,870) |
|||||
|---|---|---|---|---|---|---|---|---|
| No. | % | No. per 1,000 Patients | 95% CI | No. | % | No. per 1,000 Patients | ||
| 1 | 7,271 | 129 | 10.6 | 17.7 | 14.7 to 20.7 | 1,070 | 13.6 | 147.2 |
| 2 | 11,439 | 192 | 15.7 | 16.8 | 14.4 to 19.2 | 763 | 9.7 | 66.7 |
| 3 | 19,794 | 200 | 16.4 | 10.1 | 8.7 to 11.5 | 1,402 | 17.8 | 70.8 |
| 4 | 4,658 | 44 | 3.6 | 9.4 | 6.6 to 12.2 | 178 | 2.3 | 38.2 |
| 5 | 10,980 | 90 | 7.4 | 8.2 | 6.5 to 9.9 | 580 | 7.4 | 52.8 |
| 6 | 6,740 | 50 | 4.1 | 7.4 | 5.4 to 9.4 | 138 | 1.8 | 20.5 |
| 7 | 38,845 | 254 | 20.8 | 6.5 | 5.7 to 7.3 | 2,295 | 29.2 | 59.1 |
| 8 | 21,366 | 133 | 10.9 | 6.2 | 5.1 to 7.3 | 850 | 10.8 | 39.8 |
| 9 | 5,236 | 28 | 2.3 | 5.3 | 3.3 to 7.3 | 105 | 1.3 | 20.1 |
| 10 | 2,186 | 7 | 0.6 | 3.2 | 0.8 to 5.6 | 8 | 0.1 | 3.7 |
| 11 | 7,302 | 21 | 1.7 | 2.9 | 1.7 to 4.1 | 91 | 1.2 | 12.5 |
| 12 | 8,098 | 19 | 1.6 | 2.3 | 1.3 to 3.3 | 84 | 1.1 | 10.4 |
| 13 | 13,651 | 30 | 2.5 | 2.2 | 1.4 to 3.0 | 163 | 2.1 | 11.9 |
| 14 | 14,401 | 24 | 2.0 | 1.7 | 1.0 to 2.4 | 143 | 1.8 | 9.9 |
| Total | 171,967 | 1,221 | 100.0 | 7.1 | 6.7 to 7.5 | 7,870 | 100.0 | 45.8 |
Abbreviation: ESA, erythropoiesis-stimulating agent.