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A bivariate measure...
A bivariate measurement error model for nitrogen and potassium intakes to evaluate the performance of regression calibration in the European Prospective Investigation into Cancer and Nutrition study
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Ferrari, P. (author)
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Roddam, A. (author)
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Fahey, M. T. (author)
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show more...
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Jenab, M. (author)
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Bamia, C. (author)
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Ocke, M. (author)
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Amiano, P. (author)
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Hjartaker, A. (author)
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Biessy, C. (author)
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Rinaldi, S. (author)
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Huybrechts, I. (author)
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Tjonneland, A. (author)
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Dethlefsen, C. (author)
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Niravong, M. (author)
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Clavel-Chapelon, F. (author)
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Linseisen, J. (author)
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Boeing, H. (author)
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Oikonomou, E. (author)
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Orfanos, P. (author)
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Palli, D. (author)
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de Magistris, M. Santucci (author)
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Bueno-de-Mesquita, H. B. (author)
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Peeters, P. H. M. (author)
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Parr, C. L. (author)
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Braaten, T. (author)
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Dorronsoro, M. (author)
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Berenguer, T. (author)
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- Gullberg, Bo (author)
- Lund University,Lunds universitet,Nutritionsepidemiologi,Forskargrupper vid Lunds universitet,Nutrition Epidemiology,Lund University Research Groups
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- Johansson, I (author)
- Umeå universitet,Näringsforskning
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Welch, A. A. (author)
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Riboli, E. (author)
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Bingham, S. (author)
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Slimani, N. (author)
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(creator_code:org_t)
- 2009-11-04
- 2009
- English.
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In: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 1476-5640 .- 0954-3007. ; 63:4s, s. 179-187
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Abstract
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- Objectives: Within the European Prospective Investigation into Cancer and Nutrition (EPIC) study, the performance of 24-h dietary recall (24-HDR) measurements as reference measurements in a linear regression calibration model is evaluated critically at the individual (within-centre) and aggregate (between-centre) levels by using unbiased estimates of urinary measurements of nitrogen and potassium intakes. Methods: Between 1995 and 1999, 1072 study subjects (59% women) from 12 EPIC centres volunteered to collect 24-h urine samples. Log-transformed questionnaire, 24-HDR and urinary measurements of nitrogen and potassium intakes were analysed in a multivariate measurement error model to estimate the validity of coefficients and error correlations in self-reported dietary measurements. In parallel, correlations between means of 24-HDR and urinary measurements were computed. Linear regression calibration models were used to estimate the regression dilution (attenuation) factors. Results: After adjustment for sex, centre, age, body mass index and height, the validity coefficients for 24-HDRs were 0.285 (95% confidence interval: 0.194, 0.367) and 0.371 (0.291, 0.446) for nitrogen and potassium intakes, respectively. The attenuation factors estimated in a linear regression calibration model were 0.368 (0.228, 0.508) for nitrogen and 0.500 (0.361, 0.639) for potassium intakes; only the former was different from the estimate obtained using urinary measurements in the measurement error model. The aggregate-level correlation coefficients between means of urinary and 24-HDR measurements were 0.838 (0.637, 0.932) and 0.756 (0.481, 0.895) for nitrogen and potassium intakes, respectively. Conclusions: This study suggests that 24-HDRs can be used as reference measurements at the individual and aggregate levels for potassium intake, whereas, for nitrogen intake, good performance is observed for between-centre calibration, but some limitations are apparent at the individual level. European Journal of Clinical Nutrition (2009) 63, S179-S187; doi: 10.1038/ejcn.2009.80
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Näringslära (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nutrition and Dietetics (hsv//eng)
Keyword
- EPIC
- measurement errors
- urinary measurements
- 24-h dietary recall
- EPIC-SOFT
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Ferrari, P.
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Roddam, A.
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Fahey, M. T.
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Jenab, M.
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Bamia, C.
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Ocke, M.
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show more...
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Amiano, P.
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Hjartaker, A.
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Biessy, C.
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Rinaldi, S.
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Huybrechts, I.
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Tjonneland, A.
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Dethlefsen, C.
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Niravong, M.
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Clavel-Chapelon, ...
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Linseisen, J.
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Boeing, H.
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Oikonomou, E.
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Orfanos, P.
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Palli, D.
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de Magistris, M. ...
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Bueno-de-Mesquit ...
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Peeters, P. H. M ...
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Parr, C. L.
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Braaten, T.
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Dorronsoro, M.
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Berenguer, T.
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Gullberg, Bo
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Johansson, I
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Welch, A. A.
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Riboli, E.
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Bingham, S.
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Slimani, N.
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Health Sciences
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and Nutrition and Di ...
- Articles in the publication
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European Journal ...
- By the university
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Lund University
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Umeå University