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Nutrients 2017, 9(2), 99; doi:10.3390/nu9020099

Comparing Computerised Dietary Analysis with a Ready Reckoner in a Real World Setting: Is Technology an Improvement?

1
Department of Nutrition, Dietetics & Food, Monash University, Level 1, 264 Ferntree Gully Road, Notting Hill, Vic 3168, Australia
2
Allied Health Research Office, Eastern Health, 5 Arnold Street, Box Hill, Vic 3128, Australia
*
Author to whom correspondence should be addressed.
Received: 29 November 2016 / Accepted: 28 January 2017 / Published: 31 January 2017
(This article belongs to the Special Issue Technology Based Approaches to Dietary Intake Assessment)
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Abstract

Ready reckoners are used in the clinical setting as a tool for the estimation of nutrient intake. With increasing opportunities for nutrition research, ready reckoners may provide for a more rapid analysis of nutritional intake than computerised methods, often seen as the gold standard for nutritional analysis. This research aimed to determine the level of agreement between ready reckoner and computerised dietary analysis through a secondary analysis of clinical trial data. Participant food intakes were estimated by trained observers using the one-quarter method. Daily energy and protein intake were estimated by the healthcare network ready reckoner and computerised dietary analysis. Agreement between methods was tested using t-tests, correlations and Bland-Altman plots. A correlation between analysis methods was observed (r = 0.9086 energy, r = 0.8700 protein). Wide limits of agreement were observed for both energy and protein intake. Compared with the computerised method, ready reckoner analysis underestimated energy intake by 600 kJ and protein intake by 5 g. Mean energy and protein intake calculated by each method was significantly different (p < 0.0001 energy; p < 0.0001 protein). No time differences between analysis methods were observed. In the clinical setting, practitioners should be aware of the variability of a ready reckoner compared to computerised dietary analysis. Further investigation into the acceptability of ready reckoners as a reliable method of nutrient intake determination, particularly for analysis of nutrition research, is required. View Full-Text
Keywords: ready reckoner; computerized dietary analysis; nutritional analysis; Bland-Altman ready reckoner; computerized dietary analysis; nutritional analysis; Bland-Altman
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Paciepnik, J.; Porter, J. Comparing Computerised Dietary Analysis with a Ready Reckoner in a Real World Setting: Is Technology an Improvement? Nutrients 2017, 9, 99.

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