The roster is familiar, if not monotonous, to nearly all physicians: history, physical examination, urinalysis, hemoglobin, chest x-ray, ECG, sigmoidoscopy, another test or two and possibly a bit of serendipity.
This standard health examination, with variations, is performed on uncounted thousands each year. The result is a vast, mostly unanalyzed jungle of data that holds potential answers to a most important question:
Such broad questions may only be answered by a series of more precise observations, such as those being ferreted out in the Periodic Health Examination Research Project, based at the University of Pennsylvania. It is supported by a grant from the US Public Health Service.
More than 21,000 persons who have undergone one or more health examinations at eight