Final answer:
The EDVR is usually updated monthly or quarterly by organizations like the CDC or AHRQ.
Step-by-step explanation:
The EDVR (Emergency Department Visit Rate) is typically updated on a regular basis, usually monthly or quarterly, depending on the reporting organization. This allows for the most up-to-date information on emergency department visits and trends. The report is typically updated by organizations such as the Centers for Disease Control and Prevention (CDC), the Agency for Healthcare Research and Quality (AHRQ), or other relevant health departments.