农村居民膳食中胡萝卜素摄入水平与食管癌关系初探

A Primary Study of Dietary Carotene Intake and Esophageal Cancer Mortality in Rural Areas of China

流行病学研究表明，β-胡萝卜素在预防人类疾病方面有重要作用。本组于1975年～1981年在河南林县．鹤壁．新乡，河北涉县．江苏扬中，淮安以及四川盐亭7个食管癌高发区，和河南范县．山东胶县．江苏如皋．邳县及吴县5个食管癌低发区进行了膳食营养调查。在调查的12个县里．居民膳食总胡萝卜素的日人均摄入量为3.0毫克～10.4毫克．薯类食品和深绿叶蔬菜是膳食总胡萝卜素的主要来源，占76％～99％。12个县中有5个县（占42％）居民膳食β-胡萝卜素的日人均摄入量未达到国际专业组织的建议量6毫克，其中．有4个是食管癌高发县。根据初步膳食调查的结果、我们认为我国食管癌病发区人群膳食中是存在胡萝卜素摄入不足的情况，鼓励该地区居民多食富含β-胡萝卜素的新鲜蔬菜、水果和薯类食品对预防癌症有益。

Epidemiological evidences show that β-carotene plays important roles in prevention of human diseases The intakes of dietary carotene derived frorn our dietary aurvey conducted among the rural residents in 12 conties with different risk for esophateal Cancer in 1975~1984. It showed ! that the avernge daily intake of total carotene ranged in 3.0~10.4mg per capita .of which 76％~ 99％came from yams and dark green vegetables. There were five counties Tesidents whose daily intake of β-earotene were less than 6 mg and four of them were the counties with high risk for esophageal cancer, while only one from low risk areas. It implied the carotene inadquate intake in the residents with high risk for esophaheal cancer. It could be of much benefit to them by encouragement to consume more fresh vegetables and fresh fruits containing rich in β-carotene for provention of cancer.