Wen Meng-meng, Zhu Guang-rong, Wang Hai-xue
Department of Child, Adolescent and Women's Health, Peking University School of Public Health;Institute of Child and Adolescent Health of Peking University, Beijing 100191, China.
Beijing Da Xue Xue Bao Yi Xue Ban. 2015 Jun 18;47(3):406-9.
To analyze the association between obesity and age at spermarche among Chinese Han boys aged 11-18 years .
The height, weight and status of the spermarche of Chinese Han boys aged 11-18 years were selected from the data of 2010 National Physical Fitness and Health Surveillance.The body mass index (BMI), prevalence of spermarche in each age group and ages at spermarche by BMI groups were calculated. Chi square test was used to analyze the differences of prevalences of spermarche among the boys with different BMIs across ages. U-test was used to compare the differences of age at spermarche between the boys who were obese and not.
In the boys aged 12 and 17 years in urban areas and boys aged 13 years in rural areas, the differences of prevalences of spermarche among the normal weight, overweight and obesity groups were significant (P<0.05). The age at spermarche in the obesity group (13.90 years) was 0.1 years earlier than that in the non-obesity group (14.00 years) (P<0.05).
Obesity may make the age at spermarche ahead of time.
分析11 - 18岁中国汉族男孩肥胖与首次遗精年龄之间的关联。
从2010年全国学生体质与健康调研数据中选取11 - 18岁中国汉族男孩的身高、体重及首次遗精状况。计算各年龄组的体重指数（BMI）、首次遗精患病率以及按BMI分组的首次遗精年龄。采用卡方检验分析不同BMI男孩各年龄组首次遗精患病率的差异。采用U检验比较肥胖与非肥胖男孩首次遗精年龄的差异。
在城市12岁和17岁男孩以及农村13岁男孩中，正常体重、超重和肥胖组之间首次遗精患病率差异有统计学意义（P<0.05）。肥胖组首次遗精年龄（13.90岁）比非肥胖组（14.00岁）早0.1岁（P<0.05）。
肥胖可能使首次遗精年龄提前。
