作者
Gladys Block, Margo Woods, Arnold Potosky, Carolyn Clifford
发表日期
1990/1/1
期刊
Journal of clinical epidemiology
卷号
43
期号
12
页码范围
1327-1335
出版商
Pergamon
简介
The validity of a self-administered diet history questionnaire has been estimated using as the reference data the mean of three 4-day diet records collected over the year prior to the administration of the questionnaire, in 1985–1986. Subjects were women ages 45–70 years, participants in the Women's Health Trial Feasibility Study, a multi-center clinical trial in which some women were randomized to be taught to adopt and maintain a low-fat diet, while others maintained their usual diet. The questionnaire produced group mean nutrient estimates closely approximating the values obtained by three 4-day records, e.g. in the usual-diet group, 37.7% of calories from fat by both food records and by questionnaire, and in the low-fat, group, 21.3% of calories from fat by food records and 23.7% of calories from fat by questionnaire. Correlations between questionnaire and diet records for per cent of calories from fat were 0.67 …
引用总数
学术搜索中的文章
G Block, M Woods, A Potosky, C Clifford - Journal of clinical epidemiology, 1990