港粤两地儿童血胆固醇含量和膳食脂肪摄入量的比较研究

A Com parative Study on Blood C holesterol and Dietary Fat Intake betwcen Hong Kong and Cantoncse CMIdren

香港７岁儿童的血胆固醇水平（４．５９ｍｍｏｌ／Ｌ）明显高于同种族的广东省江门市同龄儿童的水平（４．１６ｍｍｏｌ／Ｌ）。用双份法收集两地各２０名儿童连续两日膳食，用化学法分析脂肪和脂肪酸含量的结果表明：江门市儿童每口摄入脂肪为３４．７ｇ，比香港儿童的摄人量（每口４７．６ｇ）低３０％左右；膳食脂肪酸模式中，多不饱和脂肪与饱和脂肪比例和亚油酸与豆蔻酸比例，江门市儿童（各为０．８１和２０．７３）均明显高于香港儿童（各为０．６９和１０．９１）。提示：在经济迅速发展、人民生活富裕后，膳食模式也会发生变化，必须尽早预防可能由此带来的营养过多造成对健康的危害，特别是对以后发生冠心病危险性的影响。

Blood cholesterol level in children aged 7 in Hong Kong(4.59mmol /L) was significantly higher than that in Jiangmen City. Guangdong Province(4. 16mmol / L). Duplicate meals were collected from 20 children each in Hong Kong and Jiangmen for chemical analysis of fat intake and fatty acid profile.Results showed daily fat intake was 34.7 g for children in Jiangmen,which was about 30% lower than that in Hong Kong(47.6g).Fatty acid profiie in the diet of Jiangrnlen children showed a sigflificantly higher polyunsaturatid fatty acid saturated fatty acid ratio(0.81 vs 0.69) and linoleic acid /myristic acid ratio(20.73 vs 10.91) than that of Hong Kong children。 It suggested dietary mode in a society with rapid developing economy and well-to-do life has changed,and it is necessary to prevent from the damage to health,especially the risk of coronary heart disease,caused by over-nutrition,as early as possible.