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  • Title: Size-at-birth standards for an urban Canadian population.
    Author: Blidner IN, McClemont S, Anderson GD, Sinclair JC.
    Journal: Can Med Assoc J; 1984 Jan 15; 130(2):133-40. PubMed ID: 6692192.
    Abstract:
    By random sampling of all births occurring in Hamilton, Ont. over an 18-month period the percentile distributions of the newborn infants' weight, length, and head and chest circumferences were determined. The resulting standards may be used in the clinical evaluation of size for gestational age. The smoothed 50th percentile values for newborns of 40 weeks gestational age were as follows for boys and girls respectively: birth weight 3530 and 3355 g, crown-heel length 52.0 and 51.3 cm, head circumference 35.2 and 34.4 cm, and chest circumference 33.4 and 32.8 cm. The mother's height averaged 160.8 +/- 6.1 cm and her weight before the pregnancy 59.2 +/- 10.5 kg. The prevalence of cigarette smoking during pregnancy was 34.8%.
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