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Evaluation of a Computerized Food Frequency Questionnaire (cFFQ) to Estimate Calcium Intake of Asian, Hispanic, and non‐Hispanic White Youth
Author(s) -
Wong Siew Sun,
Boushey Carol J.,
Novotny Rachel,
Gustafson Deborah R.
Publication year - 2007
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.21.6.lb55-a
Subject(s) - demography , medicine , food frequency questionnaire , african american , gerontology , zoology , environmental health , biology , sociology , ethnology , history
Objective. To evaluate a cFFQ that estimates calcium intake among Asian, Hispanic, and non‐Hispanic White (NHW) youth. Design. A cFFQ based on a list of 80 foods with corresponding food photos was evaluated for four consecutive weeks. Participants completed cFFQs during Weeks 1 and 4, and 24‐hour dietary recalls (24HDR) during each of Weeks 2 and 3. Subjects. A convenience sample of Asian (29%), Hispanic (36%), and NHW (35%) youth, aged 11–18 years old, living in Northern Utah (N=161). Results. The correlation of calcium intakes estimated by the first and second cFFQ, one month apart, was 0.72 (transformed Pearson’s r ) for the total sample (N=161). Correlations within subgroups were for males, r =0.59; females, r =0.81; 11–14 year olds, r =0.66; 15–18 year olds, r =0.82; Asians, r =0.73; Hispanics, r =0.76; and NHW, r =0.61. The correlation of calcium intakes estimated by the second cFFQ and the mean of two 24HDRs was 0.56 (deattenuated, transformed Pearson’s r ) for the total sample. Correlations were also significant for males ( r = 0.50), females ( r =0.57), 11–14 year olds ( r =0.56), 15–18 year olds ( r =0.59), Asians ( r =0.63), Hispanics ( r =0.55) and NHW ( r =0.57). Conclusion. This cFFQ is found to be reliable in estimating calcium intake among multiethnic youth in the U.S.