Comparative international studies of osteoporosis using isotope techniques

Over three hundred volunteers were recruited through newspaper advertisements and other means to measure the BMD of the lumbar spine and femoral neck of normal healthy Canadians from the Toronto area. Trained scientists or medical personnel with respect to their medical history, lifestyle and habits carefully interviewed all these people. Persons with histories that will affect bone mineral status were excluded from the study. The resulting study population consisted of 200 persons. The data was used to determine the age or the range of ages at which peak BMD is attained in this normal population. The measurements were made using a DEX4 instrument made by Hologic Inc., Model 1000W. (author)