Background: Misreporting food intake is common because most health screenings rely on self-reports. The more accurate methods (eg, weighing food) are costly, time consuming, and impractical. Objectives: We developed a new instrument for reporting food intake-an Internet-based interactive virtual food plate. The objective of this study was to validate this instrument's ability to assess lunch intake. Methods: Participants were asked to compose an ordinary lunch meal using both a virtual and a real lunch plate (with real food on a real plate). The participants ate their real lunch meals on-site. Before and after pictures of the composed lunch meals were taken. Both meals included identical food items. Participants were randomized to start with either instrument. The 2 instruments were compared using correlation and concordance measures (total energy intake, nutritional components, quantity of food, and participant characteristics). Results: A total of 55 men (median age: 45 years, median body mass index [BMI]: 25.8 kg/m2) participated. We found an overall overestimation of reported median energy intake using the computer plate (3044 kJ, interquartile range [IQR] 1202 kJ) compared with the real lunch plate (2734 kJ, IQR 1051 kJ, P<.001). Spearman rank correlations and concordance correlations for energy intake and nutritional components ranged between 0.58 to 0.79 and 0.65 to 0.81, respectively. Conclusion: Although it slightly overestimated, our computer plate provides promising results in assessing lunch intake. © Filippo Castiglione.

Svensson, M., Bellocco, R., Bakkman, L., Lagerros, Y. (2013). An interactive internet-based plate for assessing lunchtime food intake: A validation study on male employees. JMIR. JOURNAL OF MEDICAL INTERNET RESEARCH, 15(1) [10.2196/jmir.2217].

An interactive internet-based plate for assessing lunchtime food intake: A validation study on male employees

BELLOCCO, RINO
Secondo
;
2013

Abstract

Background: Misreporting food intake is common because most health screenings rely on self-reports. The more accurate methods (eg, weighing food) are costly, time consuming, and impractical. Objectives: We developed a new instrument for reporting food intake-an Internet-based interactive virtual food plate. The objective of this study was to validate this instrument's ability to assess lunch intake. Methods: Participants were asked to compose an ordinary lunch meal using both a virtual and a real lunch plate (with real food on a real plate). The participants ate their real lunch meals on-site. Before and after pictures of the composed lunch meals were taken. Both meals included identical food items. Participants were randomized to start with either instrument. The 2 instruments were compared using correlation and concordance measures (total energy intake, nutritional components, quantity of food, and participant characteristics). Results: A total of 55 men (median age: 45 years, median body mass index [BMI]: 25.8 kg/m2) participated. We found an overall overestimation of reported median energy intake using the computer plate (3044 kJ, interquartile range [IQR] 1202 kJ) compared with the real lunch plate (2734 kJ, IQR 1051 kJ, P<.001). Spearman rank correlations and concordance correlations for energy intake and nutritional components ranged between 0.58 to 0.79 and 0.65 to 0.81, respectively. Conclusion: Although it slightly overestimated, our computer plate provides promising results in assessing lunch intake. © Filippo Castiglione.
Articolo in rivista - Articolo scientifico
Diet; Epidemiology; Internet; Methods; Nutrition; Validation; Web; Adolescent; Adult; Aged; Diet Records; Humans; Male; Middle Aged; Self Care; Sweden; Telemedicine; Young Adult; Eating; Internet; Lunch; User-Computer Interface; Health Informatics
English
Svensson, M., Bellocco, R., Bakkman, L., Lagerros, Y. (2013). An interactive internet-based plate for assessing lunchtime food intake: A validation study on male employees. JMIR. JOURNAL OF MEDICAL INTERNET RESEARCH, 15(1) [10.2196/jmir.2217].
Svensson, M; Bellocco, R; Bakkman, L; Lagerros, Y
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/103585
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