| 摘要: |
| 目的:为制定老年男性一秒率参考值的统一标准提供科学依据。方法:收集了中国26个省、市、自治区的72个市(县)级医院和有关科研单位及高等院校测定的4 342例健康老年男性一秒率参考值。运用相关分析、因子分析及GIS软件,研究了其与6项地理因素指标\[海拔高度(X1)、年日照时数(X2)、年平均气温(X3)、气温年较差(X4)、年平均相对湿度(X5)、年降水量(X6)\] 的关系。结果:发现老年男性一秒率参考值与地理因素之间有显著的相关关系。利用因子分析及回归分析的方法推导出了一个回归方程=79.279 8+0.000 901 5X1-0.001 931 4X2+0.001 966 8X3-0.002 615X4+0.001 293 4X5+0.001 650 3X6±1.032 8,计算得到的预测值与实测值拟合程度较高(P<0.01)。借助GIS软件中的地统计分析模块,通过克里格(Krig-ing)插值法精确地内插出中国老年男性一秒率参考值的空间趋势分布图。结论:知道某地的地理因素值,就可以利用回归方程估算出中国任何地方的老年男性一秒率参考值,也可以通过中国老年男性一秒率参考值的空间趋势分布图得出任何一地的老年男性一秒率参考值。 |
| 关键词: 一秒率 参考值 地理因素 因子分析 回归分析 |
| DOI：10.3724/SP.J.1008.2009.01269 |
| 投稿时间：2008-11-28修订日期：2009-09-16 |
| 基金项目:国家自然科学基金 (40671005). |
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| Factor analysis-based relationship analysis between geographical factors and value of FEV1.0% in aged Chinese males |
| YAN Yan-chun1,GE Miao1*,WANG Xin1,HE Jin-wei1,CAO Li-xia1,WANG Zhi-kui2 |
| (1.Department of Environmental Science,College of Tourism and Environment,Shaanxi Normal University,Xi’an 710062,China;2.College of Chemistry and Material Science,Shaanxi Normal University,Xi’an 710062) |
| Abstract: |
| Objective:To provide a scientific basis for establishing a standard reference value of FEV1.0% for aged Chinese males.Methods:The reference values of FEV1.0% of 4 342 healthy aged Chinese males were collected from hospitals,research units,and higher institutions of 72 counties or cities.Correlation analysis,factor analysis and GIS software were used to investigate the relationship between the reference values of FEV1.0% with six geographical factors.Results:It was found that the reference values of FEV1.0% in aged Chinese males were significantly associated with geographical factors.Factor analysis and regression analysis yielded a regression equation as:=79.279 8+0.000 901 5X1-0.001 931 4X2+0.001 966 8X3-0.002 615X4+0.001 293 4X5+0.001 650 3X6±1.032 8.The fitting degree between the predicted and the measured values was high.With the aid of geostatistical analysis module of GIS spatial analysis and Kriging interpolation method,we interpolated the geographical distribution map of the reference value of FEV1.0% in aged Chinese males.Conclusion:The regression equation can be used to accurately calculate the reference value of FEV1.0% for aged Chinese males, if the geographical values for an area are available.The reference value of FEV1.0% can also be obtained by the geography Trend-surface distribution map of an area. |
| Key words: FEV1.0% reference values geographical factors factor analysis regression analysis |
