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Reproducibility and validity of an FFQ developed for adults in Nanjing, China.
Br J Nutr. 2016 Mar 14; 115(5):887-94.BJ

Abstract

We evaluated the reproducibility and validity of an FFQ used in a Chinese community-based nutrition and health survey. A total of ninety-nine males and 104 females aged 31-80 years completed four three consecutive 24-h dietary recalls (24-HDR, served as a reference method, one three consecutive 24-HDR for each season) and two FFQ (FFQ1 and FFQ2) over a 1-year interval. The reproducibility of the FFQ was estimated with correlation coefficients, misclassification and weighted κ statistic. The validity was evaluated by comparing the data obtained from FFQ2 with the mean 24-HDR (m24-HDR). Compared with the m24-HDR, the FFQ tended to underestimate intake of most nutrients and food groups. For all nutrients and food groups, the Spearman's and intra-class correlation coefficients between FFQ1 and FFQ2 ranged from 0·66 to 0·88 and from 0·65 to 0·87, respectively. Most correlation coefficients decreased after adjusting for energy. More than 90% of the subjects were classified into the same or adjacent categories by both FFQ. For all nutrients and food groups, the crude, energy-adjusted and de-attenuated Spearman's correlation coefficients between FFQ2 and the m24-HDR ranged from 0·21 to 0·69, 0·19 to 0·58 and 0·25 to 0·71, respectively. More than 70% of the subjects were classified into the same and adjacent categories by both instruments. Both weighted κ statistic and the Bland-Altman plots showed reasonably acceptable agreement between the FFQ2 and the m24-HDR. The FFQ developed for adults in the Nanjing area can be used to reliably and validly measure usual intake of major nutrients and food groups.

Authors+Show Affiliations

1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.3Department of Non-communicable Disease Prevention,Qinhuai District Center for Disease Control & Prevention,2, Baiguoshu,Nanjing 210029,People's Republic of China.4Department of Non-communicable Disease Prevention,Liuhe District Center for Disease Control & Prevention,East Huancheng Road of Xiongzhou,Nanjing 211500,People's Republic of China.1Department of Non-communicable Disease Prevention,Nanjing Municipal Center for Disease Control & Prevention,2, Zizhulin,Nanjing 211166,People's Republic of China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Validation Study

Language

eng

PubMed ID

26785928

Citation

Ye, Qing, et al. "Reproducibility and Validity of an FFQ Developed for Adults in Nanjing, China." The British Journal of Nutrition, vol. 115, no. 5, 2016, pp. 887-94.
Ye Q, Hong X, Wang Z, et al. Reproducibility and validity of an FFQ developed for adults in Nanjing, China. Br J Nutr. 2016;115(5):887-94.
Ye, Q., Hong, X., Wang, Z., Yang, H., Chen, X., Zhou, H., Wang, C., Lai, Y., Sun, L., & Xu, F. (2016). Reproducibility and validity of an FFQ developed for adults in Nanjing, China. The British Journal of Nutrition, 115(5), 887-94. https://doi.org/10.1017/S0007114515005334
Ye Q, et al. Reproducibility and Validity of an FFQ Developed for Adults in Nanjing, China. Br J Nutr. 2016 Mar 14;115(5):887-94. PubMed PMID: 26785928.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reproducibility and validity of an FFQ developed for adults in Nanjing, China. AU - Ye,Qing, AU - Hong,Xin, AU - Wang,Zhiyong, AU - Yang,Huafeng, AU - Chen,Xupeng, AU - Zhou,Hairong, AU - Wang,Chenchen, AU - Lai,Yichao, AU - Sun,Liuyuan, AU - Xu,Fei, Y1 - 2016/01/20/ PY - 2016/1/21/entrez PY - 2016/1/21/pubmed PY - 2016/7/1/medline KW - 24-HDR 24-h dietary recalls KW - China KW - FFQ KW - LOA limits of agreement KW - Reproducibility KW - Validity KW - m24-HDR mean 24-HDR SP - 887 EP - 94 JF - The British journal of nutrition JO - Br. J. Nutr. VL - 115 IS - 5 N2 - We evaluated the reproducibility and validity of an FFQ used in a Chinese community-based nutrition and health survey. A total of ninety-nine males and 104 females aged 31-80 years completed four three consecutive 24-h dietary recalls (24-HDR, served as a reference method, one three consecutive 24-HDR for each season) and two FFQ (FFQ1 and FFQ2) over a 1-year interval. The reproducibility of the FFQ was estimated with correlation coefficients, misclassification and weighted κ statistic. The validity was evaluated by comparing the data obtained from FFQ2 with the mean 24-HDR (m24-HDR). Compared with the m24-HDR, the FFQ tended to underestimate intake of most nutrients and food groups. For all nutrients and food groups, the Spearman's and intra-class correlation coefficients between FFQ1 and FFQ2 ranged from 0·66 to 0·88 and from 0·65 to 0·87, respectively. Most correlation coefficients decreased after adjusting for energy. More than 90% of the subjects were classified into the same or adjacent categories by both FFQ. For all nutrients and food groups, the crude, energy-adjusted and de-attenuated Spearman's correlation coefficients between FFQ2 and the m24-HDR ranged from 0·21 to 0·69, 0·19 to 0·58 and 0·25 to 0·71, respectively. More than 70% of the subjects were classified into the same and adjacent categories by both instruments. Both weighted κ statistic and the Bland-Altman plots showed reasonably acceptable agreement between the FFQ2 and the m24-HDR. The FFQ developed for adults in the Nanjing area can be used to reliably and validly measure usual intake of major nutrients and food groups. SN - 1475-2662 UR - https://www.unboundmedicine.com/medline/citation/26785928/Reproducibility_and_validity_of_an_FFQ_developed_for_adults_in_Nanjing_China_ L2 - https://www.cambridge.org/core/product/identifier/S0007114515005334/type/journal_article DB - PRIME DP - Unbound Medicine ER -