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目的使用总膳食研究的食物样本检测结果和食物成分表食物营养素含量2种不同数据分析浙江省杭州市居民膳食钙摄入水平及分布。方法采用3 d食物称重法和3 d 24 h回顾法收集杭州市1 744名调查对象食物消费量数据,并对烹调后代表性食物样品钙含量进行检测,分别使用检测结果及食物成分表钙含量数据计算个体摄入量,并与膳食营养素参考摄入量(DRIs)比较,分析2种方法的相关性。结果杭州市不同性别与年龄组居民每日钙摄入量中位数为303.9~544.2 mg/d(检测法)和385.9~610.1 mg/d(查表法),两者rSpearman为0.712~0.911(均P<0.001),除城区男性14~17岁组外,检测法结果明显低于查表法(均P<0.05);城、郊居民摄入量达到推荐摄入量(RNI)者分别为6.9%、6.1%(查表法)和1.8%、0.3%(检测法)。结论杭州市居民膳食钙摄入量普遍明显不足,使用食物样品检测结果及食物成分表数据计算膳食钙摄入量具有较高的相关性,但前者明显低于后者。
Objective To analyze the dietary calcium intake and distribution of residents in Hangzhou City, Zhejiang Province, using two kinds of data, which are the result of food sample test of total diet and the food nutrient content of food ingredient table. Methods The food consumption data of 1 744 subjects in Hangzhou were collected by 3 d food weighing method and 3 d 24 h retrospective method. The calcium content of the representative food samples after cooking was tested. The results of the detection and the calcium Content data Calculate individual intake, and compared with the reference intake of dietary nutrients (DRIs), analysis of the relevance of the two methods. Results The median daily calcium intake of residents of different sexes and age groups in Hangzhou was 303.9-54.4.2 mg / d (detection method) and 385.9-610.1 mg / d (table look-up method), and the rSpearman was 0.712-0.911 (P <0.001). In addition to urban male 14-17 age group, the test results were significantly lower than the table look-up method (all P <0.05); urban and rural residents intake reached the recommended intake (RNI) were 6.9%, 6.1% (look-up table) and 1.8%, 0.3% (test method). Conclusion The dietary calcium intake of Hangzhou residents is generally not enough. Calcium intake is calculated by the test results of food samples and dietary composition data, but the former is obviously lower than the latter.