![]() ![]() Serum cholesterol data were obtained for both groups, respectively, from pre- and postintervention and annual examinations. The study group worked in an office environment and participated in the annual medical examinations.Īn intervention group of 858 people with initially elevated serum cholesterol, and a reference group of 963 people randomly sampled from 10% of the study group. To elucidate a potential combined dietary and exercise intervention affect on cardiovascular risk reduction of the National Aeronautics and Space Administration Headquarters employees.Ī nonexperimental, longitudinal, clinical-chart review study (1987 to 1996) of an identified intervention group and a reference (not a control) group. ![]()
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