Hurley Medical Center, of Flint, Mich., has reported that a laptop computer went missing from the hospital’s pulmonary unit in mid-May. The computer’s hard drive contained 1,938 patients’ birth dates, heights, weights, pulmonary test results and other medical details over a four-year period, according to a July 6 press release on the medical center's website.

Hurley personnel have taken steps to secure equipment containing sensitive information, the hospital stated, and the missing laptop contained no Social Security numbers, home addresses, phone numbers or insurance information.

The laptop was part of a pulmonary diagnostic system used since 2007 to track patient test results in the Hurley Pulmonary Lab. Pulmonary Center personnel reported the missing equipment on May 13 and are working with hospital security, according to Hurley.

Hurley Medical Center, founded in 1908, is a 443-bed public teaching hospital in Genesee County, Mich., that provides patient care for more than 100,000 people annually. The center is affiliated with Michigan State University, the University of Michigan-Ann Arbor, the University of Michigan-Flint, Mott Community College and Henry Ford Health System.