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为了解饮食因素、进餐间隔时间及偏食对胆石病发病的影响,作者以美国第1次全国营养和健康抽样调查(NHANESI)的资料为基线,进行了胆石病住院的前瞻性研究。 NHANESI是在1971～1975年进行的一次大规模综合性的营养与健康调查,当时曾对研究对象了解调查前一天24 h内摄取食物的种类及数量、进餐次数及时间、偏食状况,并进行体格检查。1982～1984年对NHANESI中的4730名基线年龄为25～74岁的妇女进行随访,了解胆石病的住院情况,胆石病诊断以
To understand the effects of dietary factors, mealtime, and partial eclipse on the incidence of gallstone disease, a prospective cohort study of gallstone disease hospitalization was conducted using data from the first National Nutrition and Health Sampling Survey (NHANESI) in the United States. NHANESI was a large-scale comprehensive nutrition and health survey conducted from 1971 to 1975. At that time, NHANESI was informed of the type and quantity of food intake, the frequency and timing of meals, partial eclipse status within 24 hours before the survey, and physical fitness an examination. From 1982 to 1984, 4730 women aged 25 to 74 years old in NHANESI were followed up to understand the prevalence of gallstone disease. The diagnosis of gallstone disease