Hankin J H, Wilkens L R, Kolonel L N, Yoshizawa C N
Epidemiology Program, Cancer Research Center of Hawaii, University of Hawaii, Honolulu 96813.
Am J Epidemiol. 1991 Mar 15;133(6):616-28. doi: 10.1093/oxfordjournals.aje.a115934.
The validity of a quantitative diet history method was evaluated among 262 men and women from the five major ethnic groups of Hawaii (Japanese, Caucasian, Chinese, Filipino, and Hawaiian) in 1984-1987. The reference data included four 1-week food records obtained at approximately 3-month intervals. The diet history was administered 6 months after the fourth week of food records and included 47 foods that were major sources of protein, fat, cholesterol, vitamins A and C, and beta-carotene. Photographs showing three portion sizes were utilized for quantifying intakes in the food records and the diet history. Generally, among all ethnic-sex groups, intakes from the diet history were greater than those from the record sets, particularly for the vitamins. Agreement was measured by the intraclass correlation coefficient (rl) and the weighted kappa statistic (kappa w), and consistency was measured by Spearman's rank correlation (rho). For the total group, the rl's ranged from 0.48 for vitamin A to 0.61 for cholesterol. The kappa w's were generally lower than the rl's, whereas the rho's were higher, ranging from 0.52 for vitamin C to 0.64 for cholesterol. Agreement among the ethnic-sex groups varied, with the Chinese females and the Japanese males having the higher rl's, and the Hawaiian males and females having the lowest values. The results provide evidence that the quantitative diet history gives reasonably accurate estimates of the usual dietary intakes among the major ethnic groups of Hawaii.
1984年至1987年期间，在夏威夷的五个主要种族群体（日本人、白种人、华人、菲律宾人和夏威夷人）的262名男性和女性中评估了一种定量饮食史方法的有效性。参考数据包括以大约3个月的间隔获取的四份为期1周的食物记录。饮食史调查在第四份食物记录后的6个月进行，涵盖了47种食物，这些食物是蛋白质、脂肪、胆固醇、维生素A和C以及β-胡萝卜素的主要来源。在食物记录和饮食史调查中，利用展示三种份量大小的照片来量化摄入量。总体而言，在所有种族 - 性别群体中，饮食史中的摄入量大于记录集中的摄入量，尤其是维生素方面。一致性通过组内相关系数（rl）和加权kappa统计量（kappa w）来衡量，而连贯性通过斯皮尔曼等级相关（rho）来衡量。对于整个群体，rl值范围从维生素A的0.48到胆固醇的0.61。kappa w值通常低于rl值，而rho值较高，范围从维生素C的0.52到胆固醇的0.64。种族 - 性别群体之间的一致性各不相同，中国女性和日本男性的rl值较高，而夏威夷男性和女性的值最低。结果表明，定量饮食史能够合理准确地估计夏威夷主要种族群体的通常饮食摄入量。
