Associated factors related to first spermatorrhea and menarche among high and primary school students, in Chongqing
10.3760/cma.j.issn.0254-6450.2016.02.003
- VernacularTitle:重庆市中小学生首次遗精与月经初潮现状及相关因素研究
- Author:
Keqiong LI
1
;
Hong WANG
;
Jing GUO
;
Baocheng YUAN
;
Peiyu GUAN
Author Information
1. 400016,重庆医科大学公共卫生与管理学院妇幼卫生与儿童少年卫生学教研室医学与社会发展研究中心健康领域社会风险预测治理协同创新中心
- Keywords:
Emission;
Menarche;
Related factors
- From:Chinese Journal of Epidemiology
2016;37(2):169-173
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the status and correlative factors on menarche and first spermatorrhea among children and adolescents,in Chongqing,in order to provide theoretical basis for carrying out sex and health education in this population.Methods By random stratified and cluster sampling,10 498 students (5 372 boys and 5 126 girls),5 to 18 years old and living in Chongqing urban districts,were enrolled.General situation and physical features of the population were studied.Statistics analysis system included logistic regression methods,t-test and chi-square test.Results For urban kids,first experience of spermatorrhea was 0.218 years later than those living in the rural areas (Z=-73.287,P＜0.001),but median age for girls in urban areas was 0.073 years earlier than in rural areas (Z=-71.589,P＜0.001).Except for factor as mother' s education level in the family (x2=21.564,P＜0.001),other family or environment related factors did not show significant difference between the two groups of boys (P＞0.05).However,significant difference appeared in average family income (x2=6.175,P=0.046) between two groups of girls.Data from the logistic analysis showed that BMI,hip circumference,height,weight,number of children in the family,time of sleep and the diet structure were associated with menarche.Correlative factors of boys' first spermatorrhea would include:high-energy snacks,hip circumference,weight,height,school type and mother's education level (P＜ 0.05).Conclusion First spermatorrhea and menstruation of boys and girls were closely related to environment of the family,diet and the time of sleep.
