Ages at thelarche and menarche: study in southern Thai schoolgirls.
Ages at thelarche and menarche have been studied by a status quo method in 3,029 Thai schoolgirls in Hat Yai municipality. The median ages at thelarche and menarche estimated by probit analysis are 9 years 11 months, and 12 years 5 months, respectively. Declining in ages of thelarche and menarche is observed and can be explained by improvement in nutritional status and higher living standards.
Jauratanasirikul
S
S
Department of Pediatrics, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand.
Lebel
L
L
D000293:Adolescent; D017677:Age Distribution; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008572:Menarche / Q000502:physiology; D011627:Puberty / Q000502:physiology; D013785:Thailand