[영문]A national survey was given to characterize the availability of clinical preventive services to employees of 2180 U.S. private and government employers as a function of health plan type and employer size (21% response rate). Over 90% of employers indicated that increased productivity and decreased healthcare costs were important reasons to support clinical preventive services. Health insurance coverage of physical examinations, immunizations, and screening usually exceeded 50%, whereas coverage of lifestyle modification was less than 20%. Only 41% offered clinical preventive services at the worksite and only 4% provided an ?optimal? benefit. Relative to their priority ranking in terms of overall impact and value in prevention, alcohol-problem prevention, flu vaccination, and tobacco cessation services were available less than recommended, whereas breast cancer screening was higher. Generally large employers and HMOs offered the most clinical preventive services to employees