Use of a food frequency questionnaire to assess diets of Jamaican adults: validation and correlation with biomarkers

Jackson, Maria; Walker, Susan; Younger, Novie; Bennett, Franklyn I.

doi:10.1186/1475-2891-10-28

Cited by 53 publications

(74 citation statements)

References 39 publications

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“…Correlation coefficients comparing 24 h recalls and the FFQ ranged from 0?18 to 0?58. Correlation coefficients were comparable to those observed in other validation studies (14)(15)(16)19,20) . Nutrient data are often adjusted for energy to eliminate confounding due to energy intake and further reduces bias due to low energy reporting (3) .…”

Section: Validitysupporting

confidence: 88%

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Validation and reproducibility of an FFQ for use among adults in Botswana

Jackson

Motswagole

Kwape

et al. 2012

Public Health Nutr.

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Objective: To evaluate the validity and reproducibility of a 122-item intervieweradministered quantitative FFQ developed to determine food and nutrient intakes of adults in Botswana. Design: Relative validity of the FFQ was evaluated by comparing nutrient and food group intakes against four non-consecutive 24 h recalls administered over 12 months. The FFQ was repeated after 1 year to assess reproducibility. Setting: Kanye, Botswana. Subjects: Seventy-nine adults aged 18-75 years. Results: Spearman correlation coefficients for the validity of energy-adjusted nutrients ranged from 0?42 (carbohydrate) to 0?49 (protein) for macronutrients and from 0?23 (Fe) to 0?44 (PUFA) for micronutrients. Exact agreement of quartile distribution for nutrients between the FFQ and recalls ranged from 27 % to 72 %. Weighted kappa values were lowest for retinol (0?13), Fe (0?22) and b-carotene (0?25) and ranged from 0?33 (SFA) to 0?59 (folate) for other nutrients (energy, carbohydrate, protein, fat, Ca and vitamin E). Spearman correlation coefficients between the recalls and FFQ for food groups ranged from 0?18 (dark green leafy and yellow vegetables) to 0?58 (poultry). Reproducibility correlation coefficients (energy-adjusted) varied between 0?39 for retinol and 0?66 for vitamin E, with most values falling between 0?50 and 0?60. Conclusions: The FFQ had good relative validity for estimating habitual food group and nutrient intakes, but was poor for some micronutrients (Fe, retinol and b-carotene) and foods (fruits and dark green leafy vegetables). Keywords Quantitative FFQ Adults Validity BotswanaBotswana has undergone a rapid epidemiological transition characterized by increased incidences of non-communicable diseases, namely CVD, diabetes and cancers (1) . Dietary intake is associated with morbidity and mortality from non-communicable diseases (2) . Assessment of the usual food intake of individuals and groups is central to the investigation of eating patterns, nutrient intakes and their relationship to health outcomes, but the measurement of food and nutrient intakes can be challenging. The FFQ is used to obtain estimates of habitual diet and in contrast to other methods, such as single 24 h recalls and food records which do not reflect past diet or usual intake, has been used in a variety of settings to measure intakes in epidemiological studies. The FFQ ranks individuals according to levels of consumption rather than providing estimates of absolute quantities of energy and nutrient intakes. In addition, the technique has the advantage of being relatively easy to administer and analyse, thereby incurring lower costs compared with other methods of dietary assessment (3) . The use and limitations of the FFQ have been extensively reviewed and the method can be prone to measurement errors; thus validation studies are an essential step in the development of new FFQ.Whereas FFQ have been developed and validated for many developed and developing economies, there are few published reports of validated instruments designed to mea...

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Section: Validitysupporting

confidence: 88%

“…Misclassification was higher for vitamin E, Ca, Fe, retinol and b-carotene. In general, agreement between the FFQ and the reference method was good and was comparable to that in other studies (14,15,18) . The k w statistic was used to evaluate the level of agreement and k w values above 0?4 are valid for conclusions (24) .…”

Section: Validitysupporting

confidence: 85%

Validation and reproducibility of an FFQ for use among adults in Botswana

Jackson

Motswagole

Kwape

et al. 2012

Public Health Nutr.

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“…Limits of agreement equal to 50 and 200% indicate that 95% of all participants' Paper-Web-DR estimates were between half and 2 times that of their Web-DR estimates. In addition, limits of agreement from our study were narrower than those reported by Ambrosini et al [32] and MacIntyre et al [33] but wider than those reported by Jackson et al [34]. However, we think that the limits of agreement from our study are clinically acceptable and that the developed Web-DR could be applied in a larger study.…”

Section: Discussioncontrasting

confidence: 52%

Comparison of Paper- and Web-Based Dietary Records: A Pilot Study

Benedik

Seljak²,

Simčič³

et al. 2014

Ann Nutr Metab

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Background/Aims: Paper-based dietary records (Paper-DR) can be replaced by web-based dietary records (Web-DR) in both epidemiological studies and clinical practice to reduce the time and logistic burden. We aimed to compare Paper-DR and Web-DR. Methods: We compared the matching of different food items (n = 1,103) from Paper-DR and Web-DR for energy and 48 nutrients among 16 pregnant volunteers, with DR for the same individuals matched for the same 4 days. Paper-DR were coded into the web-based version (referred to as Paper-Web-DR) independently by the same research dietitian. The Wilcoxon signed-rank test comparing mean rank differences, Spearman's ρ to measure associations and Bland-Altman limits of agreement to evaluate the level of agreement between the two dietary methods across the range of parameters were used. Volunteers also completed an evaluation questionnaire regarding the user acceptability of Paper-DR and Web-DR. Results: A high correlation between Paper-DR and Web-DR was noted. There were statistically insignificant differences among 45 nutrients, except for free sugars (p < 0.001), α-linolenic acid (p = 0.041), folate (p = 0.036) and pantothenic acid (p = 0.023). Volunteers found the Paper-DR equally time-consuming as the Web-DR. The majority of the volunteers (75%) preferred the Web-DR. Conclusions: Paper-DR and Web-DR were comparable across a range of nutritional parameters, with a few exceptions. The Web-DR was more convenient for the majority and has substantial logistic and cost advantages.

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“…Dietary intakes were assessed using a previously validated food frequency questionnaire (FFQ) [16] that was expanded to assess diet and cancer in the Jamaican population [17]. In addition to frequency of consumption for each food item, subjects were asked to estimate the portion size usually consumed by using food models, commonly used household utensils, measuring cups and a measuring tape.…”

Section: Dietary Assessmentmentioning

confidence: 99%