Oklahoma ranks first nationwide in the number of medical negligence lawsuits per capita, according to an analysis of U.S. Department of Health and Human Resources data. A team from Weiss & Paarz – a law firm that handles medical malpractice cases in New Jersey and Pennsylvania – reviewed 30 years of claims in every state and found a total of 1.41 million cases were filed involving various types of medical malpractice claims, an average of about 47,000 cases a year. The analysis showed Oklahoma topped the list of lawsuits filed per capita with one for every 3,573 residents.