2007
DOI: 10.1038/sj.ejcn.1602893
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Validity and reproducibility of the NORBAGREEN food frequency questionnaire

Abstract: Objective: To measure the validity and reproducibility of the NORBAGREEN food frequency questionnaire (FFQ). Subjects/methods: In Finland, 125 subjects aged 25-64 years sampled from the five main regions of the FINDIET 2002 Study and in Lithuania, 99 citizens of Kaunas aged 19-75 years participated in the study. Reference methods for the FFQ were two 3-day FFQs in Finland and four 24-h recalls in Lithuania. The FFQ was repeated after 6-8 months in both countries. The outcome of the FFQ1 was correlated with the… Show more

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Cited by 17 publications
(24 citation statements)
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“…Food frequency questionnaires (FFQs) can provide an accurate, rapid and inexpensive method of dietary assessment and are frequently used in epidemiological studies. FFQs have been developed that measure intake of all nutrients (McKeown et al, 2001;Lassale et al, 2009), specific nutrients (for example, folate, Pufulete et al, 2002), food commodities (for example, fruit, vegetables, Petkeviciene et al, 2009) or dietary components (for example, quercetin, Ranka et al, 2008). However, in a number of settings, short-term dietary assessment is required.…”
Section: Introductionmentioning
confidence: 99%
“…Food frequency questionnaires (FFQs) can provide an accurate, rapid and inexpensive method of dietary assessment and are frequently used in epidemiological studies. FFQs have been developed that measure intake of all nutrients (McKeown et al, 2001;Lassale et al, 2009), specific nutrients (for example, folate, Pufulete et al, 2002), food commodities (for example, fruit, vegetables, Petkeviciene et al, 2009) or dietary components (for example, quercetin, Ranka et al, 2008). However, in a number of settings, short-term dietary assessment is required.…”
Section: Introductionmentioning
confidence: 99%
“…Tables 9-11 show agreement between the two methods to rank the intake into same category. Most of the Spearman correlation coefficients between NFFQ and frequencies of servings of the FR are significant and the correlations are within the range between 0.33 and 0.71, which is not lower than seen in comparable validation studies (Petkeviciene et al, 2009;Sepp et al, 2004). Some correlations are however relatively low (range -0.04 -0.25) indicating a weak or no correlation between results from the two methods.…”
Section: Resultsmentioning
confidence: 54%
“…It has not been considered possible to incorporate the future common Nordic monitoring in existing surveys because surveys in the Nordic countries are conducted irregularly and in different age groups. The working group has decided primarily to develop dietary indicator questions on basis of the validated indicator questions from the Norbagreen project and the dietary questions used in Sweden (Petkeviciene et al, 2009;Becker, 2009). Concerning physical activity the working group will develop indicator questions on basis of experiences with the IPAQ survey and other physical activity questionnaires (Craig et al., 2003; http://www.ipaq.ki.se/ipaq.htm; Fogelholm et al., 2006) and the working group has decided to develop a new questionnaire that fits the purpose of the Nordic monitoring system.…”
Section: Nordic Monitoring Of Diet Physical Activity and Overweightmentioning
confidence: 99%
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