Tags

Type your tag names separated by a space and hit enter

Reproducibility and relative validity of a food frequency questionnaire developed for adults in Taizhou, China.
PLoS One. 2012; 7(11):e48341.Plos

Abstract

OBJECTIVE

To evaluate the reproducibility and validity of a food frequency questionnaire (FFQ) developed to investigate the relationship between dietary factors and diseases in the adult Chinese population in East China.

METHODS

A total of 78 males and 129 females aged 30-75 years completed four inconsecutive 24-hour dietary recalls (24-HRs, served as a reference method) and two FFQs (FFQ1 and FFQ2) over a nine-month interval. The reproducibility of the FFQ was estimated with correlation coefficients, cross-classification, and weighted kappa statistic. The validity was assessed by comparing the data obtained from FFQ and 24-HRs.

RESULTS

The median nutrient intakes assessed with FFQs were higher than the average of four 24-HRs. For the food groups, Spearman, Pearson, and intraclass correlation coefficients between FFQ1 and FFQ2 ranged from 0.23 to 0.61, 0.27 to 0.64, and 0.26 to 0.65, respectively. For total energy and nutrient intakes, the corresponding coefficients ranged from 0.25 to 0.61, 0.28 to 0.64, and 0.28 to 0.62, respectively. The correlations between FFQ1 and FFQ2 for most nutrients decreased after adjustment with total energy intake. More than 70% of the subjects were classified into the same and adjacent categories by both FFQs. For food groups, the crude, energy-adjusted, and de-attenuated Spearman correlation coefficients between FFQ2 and the 24-HRs ranged from 0.17 to 0.59, 0.10 to 0.57, and 0.11 to 0.64, respectively. For total energy and nutrient intakes, the corresponding coefficients ranged from 0.20 to 0.58, 0.08 to 0.54, and 0.09 to 0.56, respectively. More than 67% of the subjects were classified into the same and adjacent categories by both instruments. Both weighted kappa statistic and Bland-Altman Plots showed reasonably acceptable agreement between the FFQ2 and 24-HRs.

CONCLUSION

The FFQ developed for adults in the Taizhou area is reasonably reliable and valid for assessment of most food and nutrient intakes.

Authors+Show Affiliations

Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, Shandong, People's Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

23139777

Citation

Zhuang, Maoqiang, et al. "Reproducibility and Relative Validity of a Food Frequency Questionnaire Developed for Adults in Taizhou, China." PloS One, vol. 7, no. 11, 2012, pp. e48341.
Zhuang M, Yuan Z, Lin L, et al. Reproducibility and relative validity of a food frequency questionnaire developed for adults in Taizhou, China. PLoS One. 2012;7(11):e48341.
Zhuang, M., Yuan, Z., Lin, L., Hu, B., Wang, X., Yang, Y., Chen, X., Jin, L., Lu, M., & Ye, W. (2012). Reproducibility and relative validity of a food frequency questionnaire developed for adults in Taizhou, China. PloS One, 7(11), e48341. https://doi.org/10.1371/journal.pone.0048341
Zhuang M, et al. Reproducibility and Relative Validity of a Food Frequency Questionnaire Developed for Adults in Taizhou, China. PLoS One. 2012;7(11):e48341. PubMed PMID: 23139777.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Reproducibility and relative validity of a food frequency questionnaire developed for adults in Taizhou, China. AU - Zhuang,Maoqiang, AU - Yuan,Ziyu, AU - Lin,Lanfang, AU - Hu,Bin, AU - Wang,Xiaofeng, AU - Yang,Yajun, AU - Chen,Xingdong, AU - Jin,Li, AU - Lu,Ming, AU - Ye,Weimin, Y1 - 2012/11/06/ PY - 2012/06/10/received PY - 2012/09/24/accepted PY - 2012/11/10/entrez PY - 2012/11/10/pubmed PY - 2013/4/24/medline SP - e48341 EP - e48341 JF - PloS one JO - PLoS One VL - 7 IS - 11 N2 - OBJECTIVE: To evaluate the reproducibility and validity of a food frequency questionnaire (FFQ) developed to investigate the relationship between dietary factors and diseases in the adult Chinese population in East China. METHODS: A total of 78 males and 129 females aged 30-75 years completed four inconsecutive 24-hour dietary recalls (24-HRs, served as a reference method) and two FFQs (FFQ1 and FFQ2) over a nine-month interval. The reproducibility of the FFQ was estimated with correlation coefficients, cross-classification, and weighted kappa statistic. The validity was assessed by comparing the data obtained from FFQ and 24-HRs. RESULTS: The median nutrient intakes assessed with FFQs were higher than the average of four 24-HRs. For the food groups, Spearman, Pearson, and intraclass correlation coefficients between FFQ1 and FFQ2 ranged from 0.23 to 0.61, 0.27 to 0.64, and 0.26 to 0.65, respectively. For total energy and nutrient intakes, the corresponding coefficients ranged from 0.25 to 0.61, 0.28 to 0.64, and 0.28 to 0.62, respectively. The correlations between FFQ1 and FFQ2 for most nutrients decreased after adjustment with total energy intake. More than 70% of the subjects were classified into the same and adjacent categories by both FFQs. For food groups, the crude, energy-adjusted, and de-attenuated Spearman correlation coefficients between FFQ2 and the 24-HRs ranged from 0.17 to 0.59, 0.10 to 0.57, and 0.11 to 0.64, respectively. For total energy and nutrient intakes, the corresponding coefficients ranged from 0.20 to 0.58, 0.08 to 0.54, and 0.09 to 0.56, respectively. More than 67% of the subjects were classified into the same and adjacent categories by both instruments. Both weighted kappa statistic and Bland-Altman Plots showed reasonably acceptable agreement between the FFQ2 and 24-HRs. CONCLUSION: The FFQ developed for adults in the Taizhou area is reasonably reliable and valid for assessment of most food and nutrient intakes. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/23139777/Reproducibility_and_relative_validity_of_a_food_frequency_questionnaire_developed_for_adults_in_Taizhou_China_ L2 - https://dx.plos.org/10.1371/journal.pone.0048341 DB - PRIME DP - Unbound Medicine ER -