Læknablaðið - 15.08.1982, Blaðsíða 28

182
LÆKNABLADID
hvað varðar tímasetningu á kynþroskavaxt-
arsprettinum. Þessi ályktun fær ákveðinn
stuðning frá rannsóknum í tann- og kynþroska
(21, 22), en jafnframt frá rannsóknum á líkams-
hæð (29) hérlendis, sem sýna hverfandi mun
milli íslenskra og danskra barna, en þó sýna
íslensk börn í flestum tilvikum fyrri þroska.
Pakkir. Bestu þakkir færi ég Porvaldi Gunnlaugssyni B.S.,
Reiknistofnun Háskóla íslands fyrir tölfræöilega meðferð
rannsóknargagna. Á sama hátt þakka ég Heilbrigðismála-
ráði Reykjavíkurborgar og Raunvísindadeild Vísindasjóðs
fyrir ómetanlega aðstoð.
SUMMARY
The mean time at onset of seven stages of skeletal
maturation of the hand, in a cross-sectional sample
of Icelandic school children in Reykjavík, a total of
1426 (690 boys and 736 girls), was assessed on
radiographs of the hand and compared with results
published from Denmark and Greenland. On the
whole, the Icelandic children reached their skeletal
maturity earlier than the Danish children and
significantly earlier than the Greenlandic ones,
except for two of the stages in the boys. Otherwise,
the mutual relationship between the skeietal stages
was very similar. Giris reached all stages significant-
ly sooner than boys, and this agrees with the
findings in Denmark and in Greenland. The sex
difference was most marked in the Icelandic materi-
al. The accidental error due to method in assessing
the differences in skeletal maturation proved to be
less than 5 °/o, similar to that reported by others.
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