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重新思考高度和儿童成长:来自西藏多高度研究的证据
Shubin Shao1, Xiaowei Ma2,3, Dawa Wangyai4
1Education Bureau of Chamdo City, Chamdo, China.
Frontiers in nutrition
|October 10, 2025
概括
儿童在高海拔地区的成长受社会经济因素的影响,而不仅仅是海拔本身. 生活条件的改善显示出追赶增长的潜力,这表明有针对性的政策是关键.
科学领域:
- 儿科内分泌学 儿科内分泌学
- 人体生理学 人体生理学
- 环境健康 环境健康
背景情况:
- 高海拔环境传统上与儿童生长缺陷有关,通常归因于慢性缺氧.
- 新出现的证据表明,社会经济和基础设施因素可能比单独的高度发挥更重要的作用.
- 这项研究调查了西藏儿童在不同高度的成长和营养状况.
研究的目的:
- 为了评估西藏儿童在不同海拔地区的成长和营养差异.
- 评估高度增长范式在资源充足的高地社区中的持续相关性.
- 检查海拔高度对发育迟缓,体重不足和超重的流行程度的影响.
主要方法:
- 2019年和2024年在西藏的卡姆多 (3200-4500米) 进行的一项重复的横截面研究.
- 调查了8230名年龄在6-17岁的儿童,收集了人体测量和肺功能数据.
- 利用后勤回归来分析年龄,性别,海拔和营养状况之间的关联,并更新了区域增长标准.
主要成果:
- 到2024年,青少年的身高接近了国家标准,自2019年以来一直保持着追赶增长.
- 发育迟缓 (12.3%) 和体重不足 (9.2%) 仍然很普遍,在较高的海拔 (~3600m和>4000m) 处的几率更高.
- 与女孩相比,男孩的发育迟缓和体重不足的几率更高;身体质量指数和身体脂肪仍然低于国家平均水平.
结论:
- 高度似乎是增长赤字的间接风险因素,由社会经济因素介导.
- 非线性高度效应和观察到的追赶增长挑战了决定性的高度增长模型.
- 研究结果支持实施有针对性的营养和基础设施政策,以改善高海拔地区儿童的成长.
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