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Growth Changes in the Mongoloid Head 1
Author(s) -
ROCHE A. F.,
SEWARD F. S.,
SUNDERLAND S.
Publication year - 1961
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1961.tb08032.x
Subject(s) - head circumference , medicine , mongoloid , demography , pediatrics , cephalometry , head (geology) , el niño , dentistry , population , biology , pregnancy , paleontology , genetics , environmental health , sociology , gestational age
Summary 1. The growth of the head has been investigated in 148 white Australian mongoloids. 2. The maximum head breadth was within the normal range (±2 S.D.) over approximately the first year. In comparison with normal children, the increase for males was then less rapid until the age of five years, more rapid until the age of nine years, after which no continuing increase was observed. In the female group, the changes were similar except for a slight increase throughout the period studied. 3. During first few months of life the maximum head length was almost normal. It then increased much more slowly than in normal children until about the age of five years after which both groups showed approximately equal rates of increase. 4. The breadth‐length index increased rapidly during the first few months of life to become much higher than in normal children, but variable. Most mongoloids are brachycephalic or hyperbrachycephalic, but examples of mesocephaly and dolichocephaly were observed. 5. The horizontal head circumference was normal until about the age of one year, but between this and the fifth year it increased more slowly than in normal children after which the rate of increase was approximately the same.