Objective:To investigate the prevalence and risk factors of bronchial asthma in the Li ethnic group in Hainan,China.Methods:This study employed a stratified random sample design using custom-designed questionnaires.Su...Objective:To investigate the prevalence and risk factors of bronchial asthma in the Li ethnic group in Hainan,China.Methods:This study employed a stratified random sample design using custom-designed questionnaires.Subjects with asthma-like symptoms were first identified by two rounds of surveys and then confirmed by respiratory physicians using pulmonary function test,bronchial dilation test and challenge test.Demographic data,information on family history of asthma,history of allergies,smoking habits,domestic cooking fuel and other potential risk factors were collected.Logistic regression was performed to evaluate risk factors for asthma.Results: The prevalence of asthma in the Li ethnic group was 3.38%,much higher than the national average level in China.Aging,agriculture industry(the rubber industry in particular),rural residence,family history of asthma,history of allergies,cold air,inhalation of dust and irritant gases,smoking,domestic cooking fuel and living environment were associated with increased risk of asthma.Conclusions:The high prevalence of asthma in the Li ethnic group highlights the importance of asthma prevention and treatment in this population.Risk factors indentified in this study warrant special attention.Elevating public awareness about asthma in local communities will benefit the prevention of the disease.展开更多
Taking Ningxia Hui Autonomous Region as an example, this research makes an empirical analysis on the factors influencing the migration activities of the research subject: the southern mountainous farmers who don't...Taking Ningxia Hui Autonomous Region as an example, this research makes an empirical analysis on the factors influencing the migration activities of the research subject: the southern mountainous farmers who don't emigrate and the farmers who immigrated in Hongsibao Development Zone. With Probit Model, the research shows that the age, educational degree, farming land per capita, number of school-aged children, vocational training experience and the quantity of gained information are all the factors which influence the farmers' emigration choice. However, the influential strength of the factors is different. The research aims to provide the government with more scientific evidences for its policies of promoting ecological migration and to encourage more poverty families to immigrate into the areas suitable for living.展开更多
目的探究溃疡性结肠炎(ulcerative colitis,UC)与无症状胆结石的关系及其危险因素。方法纳入194例UC患者,按民族、性别、年龄及体质量指数(body mass index,BMI)匹配582名健康体检者作为对照。分析UC患者胆结石的检出率,探讨UC合并胆结...目的探究溃疡性结肠炎(ulcerative colitis,UC)与无症状胆结石的关系及其危险因素。方法纳入194例UC患者,按民族、性别、年龄及体质量指数(body mass index,BMI)匹配582名健康体检者作为对照。分析UC患者胆结石的检出率,探讨UC合并胆结石的危险因素。单因素分析采用t检验或χ2检验,多因素分析采用非条件Logistic回归分析。结果 UC患者胆结石检出率为11.86%,健康体检者仅4.64%,差异有统计学意义(P<0.05)。单因素分析显示,民族为维吾尔族、年龄≥50岁、BMI≥24 kg/m2、TG水平升高的UC患者患胆结石的风险显著增加(P<0.05)。多因素分析显示,民族和年龄是UC患者合并胆结石的危险因素(P<0.05)。结论 UC患者可能存在较高的胆结石患病率,民族和年龄是其重要的危险因素,维吾尔族UC患者胆结石的患病率明显高于汉族,随着年龄增长患胆结石的风险增加,UC相关的特异性因素与胆结石的发生无关。展开更多
基金supported by Hainan Natural Science Fund (2002-203-30222)
文摘Objective:To investigate the prevalence and risk factors of bronchial asthma in the Li ethnic group in Hainan,China.Methods:This study employed a stratified random sample design using custom-designed questionnaires.Subjects with asthma-like symptoms were first identified by two rounds of surveys and then confirmed by respiratory physicians using pulmonary function test,bronchial dilation test and challenge test.Demographic data,information on family history of asthma,history of allergies,smoking habits,domestic cooking fuel and other potential risk factors were collected.Logistic regression was performed to evaluate risk factors for asthma.Results: The prevalence of asthma in the Li ethnic group was 3.38%,much higher than the national average level in China.Aging,agriculture industry(the rubber industry in particular),rural residence,family history of asthma,history of allergies,cold air,inhalation of dust and irritant gases,smoking,domestic cooking fuel and living environment were associated with increased risk of asthma.Conclusions:The high prevalence of asthma in the Li ethnic group highlights the importance of asthma prevention and treatment in this population.Risk factors indentified in this study warrant special attention.Elevating public awareness about asthma in local communities will benefit the prevention of the disease.
基金supported by National Natural Science Fundation of China (Grant No.70763008)
文摘Taking Ningxia Hui Autonomous Region as an example, this research makes an empirical analysis on the factors influencing the migration activities of the research subject: the southern mountainous farmers who don't emigrate and the farmers who immigrated in Hongsibao Development Zone. With Probit Model, the research shows that the age, educational degree, farming land per capita, number of school-aged children, vocational training experience and the quantity of gained information are all the factors which influence the farmers' emigration choice. However, the influential strength of the factors is different. The research aims to provide the government with more scientific evidences for its policies of promoting ecological migration and to encourage more poverty families to immigrate into the areas suitable for living.
