摘要
本研究对香港417名从事矽尘作业的职业人员以食物频率问卷的方法进行了膳食调查,并用先进的肺功能仪测定肺功能。以第一秒用力呼气量FEV_1和总用力呼气量FVCC的实测值占按其性别、身高调节计算出的标准预计值80％为界限和第一秒钟用力呼气量占总用力呼气量的比例FEV_1FVCM(FEV_1/FVCC)的75％为界限,将工人分成肺功能正常和较差两组,分析各类食品摄入频率的差异和食品对肺功能之间的相互关系。结果表明,豆类和全麦制品对肺功能有促进作用,而油炸食品的作用相反。肺和血类食品的摄入频率在不同肺功能组间有显著性差异。本文讨论了造成上述结果的可能原因。
417 employees of construction and quarry site at 8 quarry companies were investigated in Hong Kong. All the respondents were interviewed with a diet questionnaire which included the following foods: a) meat; b) liver; c) lung; d) blood; e) fish and shellfish; f) eggs; g) fresh fruits; h) beans and peas; i) carrots; j) leafy green vegetables; k) milk and ic-ecream; 1) cream and butter; m ) fried foods; n ) margarine; o) lard; p) whloe wheat. Each subjects lung function was measured by Vitalograph as the machine which recorded the measure value, predict value according to the six, age and hight of the subject. FYCC (FVC meaure value/FVC predict value), FEV1 (FEV1 measure value/FEV1 predict value) and FEV1- FVCM (FEVl/FVC) were used as indicators for luug function in the paper and the demarcation between normal and poor lung function was 80% for FVCC and FEV1C while 75% for FEV1FVCM of predict value. The investigation results showed that the workers could pay more attention to food and health. They selected balanced diet and took more high-protein, high-vitamins and high-fiber foods such as fish, vegetables and fruits while high-fat or high-cholesterol foods such as animal viscera and lard were less taken. The results of Chi-squre analysis for dietary intake and lung function showed:1) None of the differences of food intakes between normal and poor FVCC reached statistical significance; 2) There were si-gnificent differences between normal and poor FEV1C in the intakes of liver and lung (P<0.05);3) There was a very significant difference between normal and poor FEV1FVCM in the intake of blood (P<0.01). The results of multiple regression showed a trend that the more the whole wheat and beans intakes the higher the FEV1C but the more the fried foods intake, the lower the FEV1C. For FVCC, fried foods had a negative effect for FEV1FVCM, while beans and peas had positive effects. The t-test results for the different lung function values between low and high food intakes were similar with Chisquare test. The reasons for t
出处
《营养学报》
CAS
CSCD
北大核心
1991年第3期215-228,共14页
Acta Nutrimenta Sinica
关键词
石矿业工人
肺功能
膳食调查
diet investigation lung function dust exposure workers vitamin A vitamin E
