Abstract
Objective: Estimating dietary intake is challenging in patients with chronic diseases. The aim of this study was to calibrate the Block Brief 2000 food frequency questionnaire (BFFQ) using 3-day food diary records among patients on dialysis. Methods: Data from 3-day food diary records from 146 patients new to dialysis were reviewed and entered into National Cancer Institute self-administered 24-hour dietary recall (ASA24), a web-based dietary interview system. The information was then re-entered omitting foods reported in the diaries that were not in the BFFQ to generate a "BFFQ-restricted" set of intakes. We modeled each major dietary component (i.e., energy [total calories], protein, carbohydrate, fat) separately using linear regression. The main independent variables were BFFQ-restricted food diary estimates computed as the average of the 3 days of diaries, restricted to items included in the BFFQ, with the unrestricted 3-day food diary averages as dependent variables. Results: The BFFQ-restricted diary energy estimate of 1,325±545kcal was 87% of the energy intake in the full food diary (1,510.3±510.4, P < .0001). The BFFQ-restricted diary carbohydrate intake was 83% of the full food diary (156.7±78.7g vs. 190.4±72.7, P < .0001). The BFFQ-restricted fat intake was 90% of the full-diary-reported fat intake (50.1±24.1g vs. 56.4±21.6g, P < .0001). Daily protein intake assessments were not statistically different by BFFQ-restricted diary and full diary assessment (63.1±28.5 vs. 64.1±21.4g, P = .60). The associations between BFFQ-restricted diary intake and unrestricted intake were linear. Three-day diary-reported intake could be estimated from BFFQ-restricted intake with r2 ranging from 0.36 to 0.56 (P < .0001 for energy [total calories], protein, carbohydrate, and fat). Final equations did not include adjustments for age, sex, or race because the patterns of associations were not significantly different. Conclusion: Energy and macronutrient estimates by BFFQ are lower than estimates from 3-day food diaries, but simple calibration equations can be used to approximate total intake from BFFQ responses.
| Original language | English (US) |
|---|---|
| Journal | Journal of Renal Nutrition |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2014 |
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ASJC Scopus subject areas
- Medicine (miscellaneous)
- Nutrition and Dietetics
- Nephrology
- Medicine(all)
Cite this
Calibration of the brief food frequency questionnaire among patients on dialysis. / Delgado, Cynthia; Ward, Patricia; Chertow, Glenn M.; Storer, Lindsey; Dalrymple, Lorien; Block, Torin; Kaysen, George; Kornak, John; Grimes, Barbara; Kutner, Nancy G.; Johansen, Kirsten L.
In: Journal of Renal Nutrition, Vol. 24, No. 3, 2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Calibration of the brief food frequency questionnaire among patients on dialysis
AU - Delgado, Cynthia
AU - Ward, Patricia
AU - Chertow, Glenn M.
AU - Storer, Lindsey
AU - Dalrymple, Lorien
AU - Block, Torin
AU - Kaysen, George
AU - Kornak, John
AU - Grimes, Barbara
AU - Kutner, Nancy G.
AU - Johansen, Kirsten L.
PY - 2014
Y1 - 2014
N2 - Objective: Estimating dietary intake is challenging in patients with chronic diseases. The aim of this study was to calibrate the Block Brief 2000 food frequency questionnaire (BFFQ) using 3-day food diary records among patients on dialysis. Methods: Data from 3-day food diary records from 146 patients new to dialysis were reviewed and entered into National Cancer Institute self-administered 24-hour dietary recall (ASA24), a web-based dietary interview system. The information was then re-entered omitting foods reported in the diaries that were not in the BFFQ to generate a "BFFQ-restricted" set of intakes. We modeled each major dietary component (i.e., energy [total calories], protein, carbohydrate, fat) separately using linear regression. The main independent variables were BFFQ-restricted food diary estimates computed as the average of the 3 days of diaries, restricted to items included in the BFFQ, with the unrestricted 3-day food diary averages as dependent variables. Results: The BFFQ-restricted diary energy estimate of 1,325±545kcal was 87% of the energy intake in the full food diary (1,510.3±510.4, P < .0001). The BFFQ-restricted diary carbohydrate intake was 83% of the full food diary (156.7±78.7g vs. 190.4±72.7, P < .0001). The BFFQ-restricted fat intake was 90% of the full-diary-reported fat intake (50.1±24.1g vs. 56.4±21.6g, P < .0001). Daily protein intake assessments were not statistically different by BFFQ-restricted diary and full diary assessment (63.1±28.5 vs. 64.1±21.4g, P = .60). The associations between BFFQ-restricted diary intake and unrestricted intake were linear. Three-day diary-reported intake could be estimated from BFFQ-restricted intake with r2 ranging from 0.36 to 0.56 (P < .0001 for energy [total calories], protein, carbohydrate, and fat). Final equations did not include adjustments for age, sex, or race because the patterns of associations were not significantly different. Conclusion: Energy and macronutrient estimates by BFFQ are lower than estimates from 3-day food diaries, but simple calibration equations can be used to approximate total intake from BFFQ responses.
AB - Objective: Estimating dietary intake is challenging in patients with chronic diseases. The aim of this study was to calibrate the Block Brief 2000 food frequency questionnaire (BFFQ) using 3-day food diary records among patients on dialysis. Methods: Data from 3-day food diary records from 146 patients new to dialysis were reviewed and entered into National Cancer Institute self-administered 24-hour dietary recall (ASA24), a web-based dietary interview system. The information was then re-entered omitting foods reported in the diaries that were not in the BFFQ to generate a "BFFQ-restricted" set of intakes. We modeled each major dietary component (i.e., energy [total calories], protein, carbohydrate, fat) separately using linear regression. The main independent variables were BFFQ-restricted food diary estimates computed as the average of the 3 days of diaries, restricted to items included in the BFFQ, with the unrestricted 3-day food diary averages as dependent variables. Results: The BFFQ-restricted diary energy estimate of 1,325±545kcal was 87% of the energy intake in the full food diary (1,510.3±510.4, P < .0001). The BFFQ-restricted diary carbohydrate intake was 83% of the full food diary (156.7±78.7g vs. 190.4±72.7, P < .0001). The BFFQ-restricted fat intake was 90% of the full-diary-reported fat intake (50.1±24.1g vs. 56.4±21.6g, P < .0001). Daily protein intake assessments were not statistically different by BFFQ-restricted diary and full diary assessment (63.1±28.5 vs. 64.1±21.4g, P = .60). The associations between BFFQ-restricted diary intake and unrestricted intake were linear. Three-day diary-reported intake could be estimated from BFFQ-restricted intake with r2 ranging from 0.36 to 0.56 (P < .0001 for energy [total calories], protein, carbohydrate, and fat). Final equations did not include adjustments for age, sex, or race because the patterns of associations were not significantly different. Conclusion: Energy and macronutrient estimates by BFFQ are lower than estimates from 3-day food diaries, but simple calibration equations can be used to approximate total intake from BFFQ responses.
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U2 - 10.1053/j.jrn.2013.12.004
DO - 10.1053/j.jrn.2013.12.004
M3 - Article
C2 - 24613023
AN - SCOPUS:84899105964
VL - 24
JO - Journal of Renal Nutrition
JF - Journal of Renal Nutrition
SN - 1051-2276
IS - 3
ER -