Table 1. Occurrence of PVCA in the 5-year period.
| Year | Total cases: 9783 | |
|---|---|---|
| n | % | |
| 2009 | 1886 | 19.3% |
| 2010 | 2213 | 22.6% |
| 2011 | 1972 | 20.2% |
| 2012 | 1893 | 19.3% |
| 2013 | 1819 | 18.6% |
| Mean±SD | 1956.6±153.25 | |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.