“…Previous studies (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16) have been restricted to hospitalized patients or narrowly defined groups such as pregnant women, individuals with asthma, and patients undergoing psychiatric treatment. The purpose of our study, however, was to determine the frequency, diagnostic yield, costs, and rate of false-positive results of routine chest radiography performed in asymptomatic primary care patients.…”