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      Association between nutritional status and puberty onset in boys

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          Abstract

          Objective To explore the relationship between nutritional status and puberty onset in boys, and to provide a reference for promoting the development of physical and mental health of boys.

          Methods A total of 2 724 boys aged 7 to 12 years from grade 2 to 6 were recruited from Xiamen city by cluster sampling method in 2017. The nutritional status was assessed by physical examination pubertal developmental status was evaluated by rating scales of Tanner and Prader orchidometer and puberty timing was determined by the P 25 age of puberty onset. The association between nutritional status and puberty onset was estimated by logistic regression model.

          Results Pubertal onset was found in 29.0% of the boys and the incidence of early pubertal timing was 2.9%. The prevalence of puberty onset in wasting, normal weight, overweight and obesity boys was 19.6%, 28.7%, 34.4% and 31.5%, respectively. The age of puberty onset was significantly earlier in obese boys ( F = 3.23, P < 0.05). The results of Logistic regression analysis showed that with the increase of BMI, the possibility of puberty onset and risk of early pubertal timing increased. After adjusting for confounding factors, the odds of puberty onset in boys with wasting decreased by 64.0% ( OR = 0.36, 95% CI = 0.22-0.60), the possibility of puberty onset and risk of early pubertal timing in boys with obesity increased by 78.3% ( OR = 1.78, 95% CI = 1.14-2.79) and 192.9% ( OR = 2.93, 95% CI = 1.46-5.86), respectively. These relationships were more pronounced in boys of households with lower economic level ( P<0.05).

          Conclusion BMI was positively correlated with puberty onset in boys, the odds of puberty onset and risk of early pubertal timing were significantly increased in obese boys, especially in those with low household economic level.

          Abstract

          【摘要】 目的 探讨营养状况与男生青春期启动的关系, 为促进男童身心健康发展提供参考。 方法 2017 年在厦门 市采用整群抽样方法抽取 2 724 名二至六年级 7 ~ 12 岁男生为研究对象。通过体格检查评估研究对象的营养状况, 依据 Tanner 分期图谱和 Prader 睾丸模型判定青春期发育水平, 以该人群青春期启动年龄的 P25 划分青春发动时相。采用 Logis ̄ tic 回归分析营养状况与青春期启动的关系。 结果 男生青春期启动发生率为 29.0%, 青春发动时相提前率为 2.9%。消 瘦、正常体重、超重和肥胖男生青春期启动发生率分别为 19.6%, 28.7%, 34.4% 和 31.5%。肥胖男生青春期启动年龄较早 ( F = 3.23, P<0.05) 。Logistic 回归分析结果显示, 随着体质量指数( BMI) 的增加, 男生青春期启动的可能性增大, 青春发动 时相提前风险增加。在调整混杂因素后, 与正常体重男生相比, 消瘦男生青春期启动的可能性降低 64.0%( OR = 0.36, 95% CI = 0.22 ~ 0.60) ꎻ肥胖男生青春期启动的可能性增加 78.3%( OR = 1.78, 95%CI = 1.14 ~ 2.79) , 青春发动时相提前的风险增加 192.9%( OR = 2.93, 95%CI = 1.46 ~ 5.86) 。该关联在经济水平较低家庭中更加明显( P 值均<0.05) 。 结论 BMI 与男生青春 期启动呈正相关, 肥胖男生青春期启动的可能性和青春发动时相提前的风险明显增加, 特别是家庭经济水平较低的肥胖男 生中更为明显。

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          Author and article information

          Journal
          CJSH
          Chinese Journal of School Health
          Chinese Journal of School Health (China )
          1000-9817
          01 June 2020
          01 June 2020
          : 41
          : 6
          : 807-810
          Affiliations
          [1] 1Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing (100191), China
          Author notes
          *Corresponding author: MA Jun, E-mail: majunt@ 123456bjmu.edu.cn
          Article
          j.cnki.1000-9817.2020.06.003
          10.16835/j.cnki.1000-9817.2020.06.003
          1a310cd2-68e4-4059-8a1b-8f72ded10ff2
          © 2020 Chinese Journal of School Health

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 Unported License (CC BY-NC 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by-nc/4.0/.

          Product
          Self URI (journal-page): http://www.cjsh.org.cn
          Categories
          Journal Article

          Ophthalmology & Optometry,Pediatrics,Nutrition & Dietetics,Clinical Psychology & Psychiatry,Public health
          Health promotion,Regression analysis,Nutritional status,Puberty,Students,Male

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