PMID- 17381986 OWN - NLM STAT- MEDLINE DCOM- 20071127 LR - 20211015 IS - 0007-1145 (Print) IS - 0007-1145 (Linking) VI - 97 IP - 5 DP - 2007 May TI - Validity and reproducibility of the food-frequency questionnaire used in the Shanghai men's health study. PG - 993-1000 AB - We evaluated the validity and reproducibility of the FFQ used in the Shanghai Men's Health Study (SMHS). The study included 195 randomly selected participants of the SMHS who completed one FFQ at baseline, twelve 24-hour dietary recalls (24-HDR) (once a month for twelve consecutive months) and a second FFQ at the end of the study. The FFQ accounted for 88.78% of the foods recorded in the 24-HDR surveys. The validity of the FFQ was evaluated by comparing nutrient and food group intake levels from the second FFQ and the multiple 24-HDR. Correlation coefficients ranged from 0.38 to 0.64 for macronutrients, 0.33 to 0.58 for micronutrients and 0.35 to 0.72 for food groups. Misclassification to opposite quartiles for nutrients and food groups was rare, ranging from 1.5 to 7.7%, while exact agreement rates were between 31.8 and 53.3%. The reliability of the FFQ was assessed by comparing the intake levels from the two FFQ. Correlation coefficients were 0.39 to 0.53 for macronutrients, 0.38 to 0.52 for micronutrients and 0.39 to 0.64 for food groups. Exact agreement rates for quartile distribution were between 31.8 and 49.2%, while misclassification to opposite quartiles was between 1.5 and 6.2%. These data indicate that the SMHS FFQ can reasonably categorise usual intake of nutrients and food groups among men living in urban Shanghai. FAU - Villegas, Raquel AU - Villegas R AD - Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt University Medical Center and Vanderbilt-Ingram Cancer Center, Medical Center East, Suite 6000, 1215 21st Avenue South, Nashville, TN 37232-8300, USA. FAU - Yang, Gong AU - Yang G FAU - Liu, DaKe AU - Liu D FAU - Xiang, Yong-Bing AU - Xiang YB FAU - Cai, Hui AU - Cai H FAU - Zheng, Wei AU - Zheng W FAU - Shu, Xiao Ou AU - Shu XO LA - eng GR - R01 CA082729/CA/NCI NIH HHS/United States GR - R01 CA82729/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Validation Study PL - England TA - Br J Nutr JT - The British journal of nutrition JID - 0372547 RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Fats) RN - 0 (Dietary Fiber) RN - 0 (Dietary Proteins) RN - 0 (Micronutrients) RN - 0 (Vitamins) RN - 36-88-4 (Carotenoids) SB - IM MH - Adult MH - Aged MH - Carotenoids/administration & dosage MH - China/epidemiology MH - Diet Records MH - *Diet Surveys MH - Dietary Carbohydrates/administration & dosage MH - Dietary Fats/administration & dosage MH - Dietary Fiber/administration & dosage MH - Dietary Proteins/administration & dosage MH - Food MH - Humans MH - Male MH - Micronutrients/administration & dosage MH - Middle Aged MH - *Nutritional Status MH - Reproducibility of Results MH - Surveys and Questionnaires/*standards MH - Vitamins/administration & dosage EDAT- 2007/03/27 09:00 MHDA- 2007/12/06 09:00 CRDT- 2007/03/27 09:00 PHST- 2007/03/27 09:00 [pubmed] PHST- 2007/12/06 09:00 [medline] PHST- 2007/03/27 09:00 [entrez] AID - S0007114507669189 [pii] AID - 10.1017/S0007114507669189 [doi] PST - ppublish SO - Br J Nutr. 2007 May;97(5):993-1000. doi: 10.1017/S0007114507669189.