Held for Observation (IMAGE) Brown University Caption This map shows how monthly incidence of "observation stays" per 1,000 Medicare beneficiaries varies across states -- lower in the West, higher in the South and Midwest. Credit Feng Group/Brown University Usage Restrictions with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.