基于网络的哈尔滨市护士食物频率问卷信度和效度研究
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摘要
目的对哈尔滨医科大学营养与食品卫生学教研室编制的网络食物频率问卷进行信度和效度的研究。方法在哈尔滨市主城区某医院随机抽取120名护士就最近4个月内膳食习惯进行的两次食物频率的问卷调查。比较前后两次护士食物摄入的营养素的相关性,检验问卷的信度;并在第一次网络食物频率问卷调查之后连续记录三天的膳食日志,用三日膳食日志的平均结果与第一次网络食物频率问卷的相关性分析结果评价问卷的内容效度。结果 (1)效度研究中,12个项目的网络食物频率问卷与三日膳食日志的能量的结果为显著正相关(P<0.05),r为0.286~0.768,平均值为0.441;(2)信度研究中,除维生素C,前后两次网络食物频率问卷的能量和其余23种营养素均为显著正相关,r为0.276~0.867,平均值为0.647;(3)一致率分析中,营养素的效度研究一致率为48%,营养素的信度一致率为96%。结论应用网络食物频率问卷进行调查虽然存在一系列误差,但仍可作为研究人群营养摄入量与慢性病关系的有效工具,比较稳定地估计居民食物和营养素的摄入进而评价居民的膳食状况。
Objective To study the reliability and validity of the internet-based food frequency questionnaire of nurses in Harbin. Methods Two times of food frequency questionnaire were performed on a random sample of 120 nurses of several hospital in Harbin in order to understand dietary habits of each subject during the past 4 months. The correlation of students' dietary nutrients intake was compared,the reliability of the questionnaire was examined. Moreover,dietary log was performed for 3 days after the first time of electronic food frequency questionnaire,and the correlation of the average of dietary log and food frequency questionnaire was used to examine the content validity of the questionnaire. Results(1)In the study of validity,12 items were positively associated between food frequency questionnaire and dietary log( r:0. 286 ~ 0. 768,average: 0. 441);(2)In the study of reliability,except for vitamin C,intakes of energy and 23 nutrients were positively correlated between two food frequency questionnaires( r: 0. 276 ~ 0. 867,average: 0. 647);(3)In the program of consistent rate analysis,the validity of the consistent rate was 48%,the reliability of nutrients was at a rate of 96%. Conclusion Although the internet-based food frequency questionnaire exists a series of error,the FFQ also can be a perfect tool to help to study the association between nutrients and chronic diseases and food and nutrients intake of residents stably,then assess dietary status of residents.
Objective To study the reliability and validity of the internet-based food frequency questionnaire of nurses in Harbin. Methods Two times of food frequency questionnaire were performed on a random sample of 120 nurses of several hospital in Harbin in order to understand dietary habits of each subject during the past 4 months. The correlation of students' dietary nutrients intake was compared,the reliability of the questionnaire was examined. Moreover,dietary log was performed for 3 days after the first time of electronic food frequency questionnaire,and the correlation of the average of dietary log and food frequency questionnaire was used to examine the content validity of the questionnaire. Results(1)In the study of validity,12 items were positively associated between food frequency questionnaire and dietary log( r:0. 286 ~ 0. 768,average: 0. 441);(2)In the study of reliability,except for vitamin C,intakes of energy and 23 nutrients were positively correlated between two food frequency questionnaires( r: 0. 276 ~ 0. 867,average: 0. 647);(3)In the program of consistent rate analysis,the validity of the consistent rate was 48%,the reliability of nutrients was at a rate of 96%. Conclusion Although the internet-based food frequency questionnaire exists a series of error,the FFQ also can be a perfect tool to help to study the association between nutrients and chronic diseases and food and nutrients intake of residents stably,then assess dietary status of residents.
引文
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[2]Bohlscheid-Thomas S,Hoting I,Boeing H,et al.Reproducibility and relative validity of energy and macronutrient intake of a food frequency questionnaire developed for the German part of the EPIC project.European prospective investigation into cancer and nutrition[J].Int J Epidemiol,1997,26(suppl 1):S71-S81.
[3]Johansson I,Hallmans G,Wikman A,et al.Validation and calibration of food-frequency questionnaire measurements in the Northern Sweden Health and Disease cohort[J].Public Health Nutr,2002,5(3):487-496.
[4]葛可佑.中国营养科学全书(下册)[M].北京:人民卫生出版社,2004:1281.
[5]Willett WC,Sampson L,Stampfer MJ,et al.Reproducibility and validity of a semiquantitative food frequency questionnaire[J].Am J Epidemiol,1985,122(1):51-65.
[6]杨月欣.中国食物成分表2002[M].北京:北京大学医学出版社,2002:2-256.
[7]王海军,徐克静.问卷调查中的信度和效度问题[J].中国健康教育,1994,10(11):21-23.
[8]黄莉莉,罗小铭,谈晔,等.广州地区食物频率问卷信度和效度研究[J].中华疾病控制杂志,2013,17(8):711-712.