| 95% CI/ | |||
| State | Rate/100,000 (n) | % Ch. Rate | Significance |
| Alaska | |||
| 2010 | 152.30 (10) | ||
| 2011 | 258.18 (15) | 69.52% | |
| California | |||
| 2010 | 101.73 (349) | ||
| 2011 | 113.81 (385) | 11.88% | 0.001 - 0.167 (p < 0.05) |
| Hawaii | |||
| 2010 | 250.39 (32) | ||
| 2011 | 260.15 (33) | 3.90% | |
| Oregon | |||
| 2010 | 304.15 (94) | ||
| 2011 | 331.13 (102) | 8.87% | |
| Washington | |||
| 2010 | 201.56 (115) | ||
| 2011 | 232.86 (137) | 15.53% | |
| Other U.S. | |||
| 2010 | 196.90 (4378) | ||
| 2011 | 189.47 (4180) | −3.77% |