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Issue Date
2000-10-01
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Puberty in Icelandic girlsCitation
Læknablaðið 2000, 86(10):649-53Abstract
In a crosssectional study, 2775 healthy Icelandic girls, aged 6-16 years, were examined for physical signs of puberty. The study was performed in 1983-1987 and was a part of a larger crosssectional study of growth and development of 5526 Icelandic children all of whom were examined by the authors. Breast development stage 2 according to Tanner (B 2) was considered the first sign of puberty in girls. The mean age of Icelandic girls reaching B 2 was 10.84 years (SD 1.43). The mean time interval between B 2 and menarche was 2.42 years. The first signs of pubic hair growth, Tanner stage 2 (PH 2) were found at 11.46 years (SD 1.25). The mean time interval between PH 2 and PH 5 was 3.40 years. Comparison with studies from other countries is difficult because of different methods and different study designs, but the timing and tempo of puberty in Icelandic girls seems to be similar to what has been reported from other Nordic countries and countries in Western-Europe.Lýst er þverskurðarrannsókn (crosssectional) á kynþroska íslenskra stúlkna. Rannsóknin var hluti af stórri þverskurðarrannsókn á vexti og þroska íslenskra barna á aldrinum 6-16 ára. Í rannsókninni, sem fór fram á árunum 1983-1987, tók þátt alls 2751 drengur og 2775 stúlkur, eða samtals 5526 börn og unglingar. Allar mælingar og líkamsskoðun barnanna voru framkvæmdar af höfundum greinarinnar. Þroski brjósta og kynhára var stiggreindur samkvæmt aðferð Tanners (B 1-5 og PH 1-5). Til að kanna aldur við fyrstu tíðablæðingar (menarche) voru stúlkurnar spurðar hvort þær hefðu haft blæðingar. Svarið var skráð já eða nei. Meðalaldur stúlkna við upphaf brjóstaþroska (B 2) var 10,84 (staðalfrávik 1,43) ár og við fyrsta mælanlegan kynháravöxt (PH 2) 11,46 (staðalfrávik 1,25) ár. Meðalaldur stúlkna við fyrstu tíðablæðingar var 13,26 (staðalfrávik 1,15) ár. Þroski íslenskra stúlkna fylgir svipuðu ferli og lýst hefur verið á öðrum Norðurlöndum. Hins vegar virðist tímabilið 2,42 ár frá fyrstu einkennum kynþroska stúlkna (B 2) að fyrstu tíðablæðingum vera tiltölulega langt, borið saman við niðurstöður erlendra rannsókna.
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