Zhōnghuá yùfáng-yīxué zázhì, 2011-06, Vol.45 (6), p.522
2011
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- Autor(en) / Beteiligte
- Titel
- Study of geographic distribution and 10 years' change of spermarche in Chinese boys of Han-group aged 11 to 18
- Ist Teil von
- Zhōnghuá yùfáng-yīxué zázhì, 2011-06, Vol.45 (6), p.522
- Ort / Verlag
- China
- Erscheinungsjahr
- 2011
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- To analyze the geographic distribution and 10 years' change of spermarche in Chinese boys of Hangroup aged 11 - 18. Calculate the average age of spermarche of Chinese boys who participated in National Physical Fitness and Health Surveillance in 2005 and 1995. The sample size of boys was 69 320 in 2005, 68 992 in 1995 National Physical Fitness and Health Surveillance, respectively. The geographic distribution of Chinese boys were categorized into 6 areas as north, northeast, east, south central, southwest and northwest by administrative divisions. The average ages at spermarche were 13.98 and 14.22 years old for urban and rural boys in 2005, respectively. The average ages at spermarche were 13.57 and 13.72 years old for urban and rural boys who living in southwest of China. And the average ages at spermarche were 14.18 and 14.39 years old for urban boys who lived in northwest of China, and rural boys who lived in south central of China, respectively. The average age of spermarche of the top 5 provinces were Ch
- Sprache
- Chinesisch
- Identifikatoren
- ISSN: 0253-9624Titel-ID: cdi_pubmed_primary_21914335
- Format
- –
- Schlagworte
- Adolescent, Age of Onset, Asian Continental Ancestry Group, Child, China - epidemiology, Ejaculation, Humans, Male, Puberty, Rural Population, Sexual Maturation, Urban Population