Table 1. Numbers of aSAH in publically-accessible DPC database.
| Year (Report date) | No. of Hps | Duration (term) | No. of Patients | Total aSAH | Summed-up aSAH* (No. of Hps) | Masked Rate |
|---|---|---|---|---|---|---|
| 2005 (4/27/06) | 372 | 4 months (Jul-Oct) | 987,726 | 2,192 | 824 (52) | 62.4% |
| 2006 (6/22/07) | 731 | 6 months (Jul-Dec) | 2,578,442 | 4,622 | 2,988 (162) | 35.4% |
| 2007 (5/9/08) | 1,428 | 6 months (Jul-Dec) | 3,944,700 | 9,093 | 4,083 (230) | 55.1% |
| 2008 (5/14/09) | 1,559 | 6 months (Jul-Dec) | 4,229,184 | 9,375 | 4,342 (246) | 53.7% |
| 2009 (6/30/10) | 1,607 | 6 months (Jul-Dec) | 4,379,114 | 9,673 | 4,429 (251) | 54.2% |
| 2010 (11/7/11) | 1,648 | 9 months (Jul-Mar) | 6,769,203 | 14,660 | 8,868 (397) | 39.5% |
| 2011 (8/21/12) | 1,634 | 12 months (Apr-Mar) | 8,780,880 | 17,339 | 11,605 (463) | 33.1% |
| 2012 (9/20/13) | 1,774 | 12 months (Apr-Mar) | 9,249,923 | 18,033 | 12,282 (482) | 31.9% |
*Numbers are calculated by summing up the patient numbers from hospitals reporting 10 or more patients, the numbers of which are indicated in parentheses.
Hps = hospitals.