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Prediction of Birthweight by the Use of Extrauterine Measurements During Labor
Author(s) -
Engstrom Janet L.,
Chen Edwin H.
Publication year - 1984
Publication title -
research in nursing and health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 85
eISSN - 1098-240X
pISSN - 0160-6891
DOI - 10.1002/nur.4770070410
Subject(s) - medicine , palpation , girth (graph theory) , obstetrics , pregnancy , abdomen , birth weight , regression analysis , statistics , mathematics , surgery , combinatorics , biology , genetics
Maternal height, pregravid weight, weight gain during pregnancy, fundal height, McDonald's measurement, uterine width, uterine height, abdominal girth, and station of the fetal head were measured in 44 laboring, nulliparous women and were used to construct a regression model for the prediction of infant birthweight during labor. A model constructed from maternal height, weight gain during pregnancy, fundal height, abdominal girth, and station accounted for 69.6% of the variance in birthweight. The use of this regression equation resulted in predictions that were within 100, 250, and 500 gm of the actual birthweights in 34.1%, 79.5%, and 97.7% of the 44 cases, respectively. In all 44 cases, the weights of the infants also were estimated by palpation of the maternal abdomen during labor. These estimates were within 100, 250, and 500 gm of the actual birthweights in 31.8%, 61.4%, and 88.6% of the cases, respectively.