| 摘要: |
| 目的:探讨中国健康成年人肺顺应性的参考值与地理因素的关系规律,为制定中国健康成年人肺顺应性参考值的标准提供科学依据。方法和结果:收集了全国46个市县的4 489例(2 726例男性,1 763例女性)健康成年人的肺顺应性参考值,运用相关分析法分析了肺顺应性参考值与地理指标之间的相关性,多重共线性诊断法诊断5个地理指标\[海拔高度(X1),年日照时数(X2),年平均气温(X3),年平均相对湿度(X4),年降水量(X5)\]的共线性,然后用主成分分析的方法分析成年人肺顺应性参考值与地理指标的关系,可得应变量与原自变量X1~X5的线性回归方程:＝0.079-0.000 001 66X1-0.000 032 3X2-0.002 21X3+0.001 47X4-0.000 017 4X5±0.021。即为主成分回归分析法求得的线性回归模型。结论:如果我们知道了中国某地的地理指标,就可以用回归方程计算出这个地区健康成年人肺顺应性的参考值范围。 |
| 关键词: 主成分分析 肺顺应性 参考值 地理指标 |
| DOI：10.3724/SP.J.1008.2009.00036 |
| 投稿时间：2008-06-05修订日期：2008-11-02 |
| 基金项目:国家自然科学基金(40671005). |
|
| Principal component analysis of geographic influence on adult lung compliance |
| CAO Li-xia,GE Miao*,HE Jin-wei,gemiao |
| (College of Tourism and Environment Science,Shaanxi Normal University,Xi’an 710062,China) |
| Abstract: |
| Objective:To study the relationship between the lung compliance and the geographic factor in healthy Chinese adults,so as to provide scientific evidence for establishing the standard value of lung compliance for healthy Chinese adults.Methods and Results: We colleted the lung compliance data from 4 489 (2 726 males,1 763 females)healthy adult Chinese from 46 cities and counties across China.The relationship between lung compliance data and geographic factors (altitude\[X1\],annual sunshine duration\[X2\],annual mean air temperature\[X3\],annual mean relative humidity\[X4\],and annual precipitation \[X5\]) were assessed by correlative analysis and co-linearity diagnostics.Then we analyzed the relationship between the reference value and the geographical factors by using the method Principal Component Analysis.The regression equation was:＝0.079-0.000 001 66X1-0.000 032 3X2-0.002 21X3+0.001 47X4-0.000 017 4X5±0.021.Conclusion: If geographical factors of an area are obtained,the reference value range of healthy adult lung compliance of this area can be calculated by using the regression equation. |
| Key words: principal component analysis lung compliance reference value geographical factors |
