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This monograph is a detailed study of the accuracy of prediction of the surface area from various types of mathematical formulas based on height, weight or other measurements. Including the surface area measurements made by herself and those culled from the literature, Boyd has measurements on 1,114 individuals, including the antepartum group, for comparison of the accuracy of the various prediction formulas. The biologic and statistical significance of the various possible formulas will be of interest to those intensively working in this field. Boyd has shown that for the antepartum and postpartum period combined the surface area can be adequately represented, on the basis of height and weight, by a self-adjusting power equation: S = 3 207W0.7285-0.0188 log wH0.3 With this self-adjusting power equation the growth of the surface area is described in a manner similar to that of Scammon in "The Measurement of Man." It is found that growth
A Sat, study studied this question.