应用主成分分析法评价医院控烟强度对无烟医院创建效果的影响  

Assessment of the Strength of Tobacco Control on Creating Smoke-free Hospitals Using Principal Components Analysis

作　　者：刘惠琳[1,2] 万霞[2] 杨功焕[1,2] 

机构地区：[1]中国疾病预防控制中心机关,北京100050 [2]中国医学科学院北京协和医学院基础医学研究所流行病与卫生统计学系,北京100005

出　　处：《中国医学科学院学报》2013年第1期40-46,共7页Acta Academiae Medicinae Sinicae

基　　金：美国国立卫生研究所国际Fogarty中心支持的"中国烟草控制流行病与干预研究"项目(9R01TW007949-06)~~

摘　　要：目的应用主成分分析法探讨医院控烟强度与无烟医院创建效果的关联,发现影响无烟环境创建的主要因素。方法采用分层随机抽样的方法,在7个省/直辖市中抽取210家医院,对医院控烟强度指标和无烟环境创建效果指标进行主成分分析和基于主成分的回归分析。结果控烟强度指标提取了2个主成分,分别反映了医院的禁烟制度及开展的工作、医院领导的控烟意愿及对患者开展的控烟工作,回归分析显示控烟强度的第一主成分对于无烟环境创建主成分得分变量有统计学意义(P<0.001)。结论医疗机构禁烟政策、无烟环境创建、烟草危害宣传及戒烟等方面的工作是影响无烟医院创建效果的主要因素,可用于评价无烟医院创建效果。主成分分析法可以简化无烟环境评价指标数量,发现影响创建效果的主要因素,具有较强的全面性和客观性。Objective To explore the relationship between the strength of tobacco control and the effectiveness of creating smoke-free hospital, and summarize the main factors that affect the program of creating smoke-free hospitals. Methods A total of 210 hospitals from 7 provinces/municipalities directly under the central government were enrolled in this study using stratified random sampling method. Principle component analysis and regression analysis were conducted to analyze the strength of tobacco control and the effectiveness of creating smoke-free hospitals. Results Two principal components were extracted in the strength of tobacco con- trol index, which respectively reflected the tobacco control policies and efforts, and the willingness and leadership of hospital managers regarding tobacco control. The regression analysis indicated that only the first principal component was significantly correlated with the progression in creating smoke-free hospital （P 〈 0. 001 1. e.hospitals with higher scores on the first principal component had better achievements in smoke-free environment creation. Conclusions Tobacco control policies and efforts are critical in creating smoke-free hospitals. The principal component analysis provides a comprehensive and objective tool for evaluating the creation of smokefree hospitals.

关 键 词：主成分分析 无烟医院 控烟强度 

分 类 号：R181.2[医药卫生—流行病学]