Características de la variación de la ingesta diaria de energía de las mujeres jóvenes universitarias de estratos socioeconómicos medios en la ciudad de Bogotá

Pedro Monterrey G., Lilia Cortés S., Miller Ariza G.

Resultado de la investigación: Contribución a RevistaArtículo

Resumen

Introduction: The gold standard to estimate individual usual intake is the mean of multiple day’s intake. This estimation procedure is based on Beaton´s model, who consider independence and two sources of variation: between and within subjects. There are evidences and physiological arguments against validity of Beaton´s hypothesis, this fact could have relevant effects in dietetic assessment. Subjects and Methods: A food consumption of 43 middle class university women was recorded during 28 days. They were trained in order to assure quality records. Results: Low values in energy intake were reported, and no differences between energy intake during weekend and weekdays was observed. Considering reported intakes for each person as a time series, no autocorrelations was observed considering lags within 1 to 7 days. Differences in within subjects variances was observed. Conclusion: Deficiencies in subject´s energy intake corresponds to disorders in university students´ nutrition, such deficiencies could be the explanation of the observed independence in daily energy intake despite evidences of the existence of correlations reported in different papers. The hypothesis of variance homogeneity was not true, so it was not correct to talk about a “within variance”, instead a population´s probability distributions for variances was considered, as a consequence Beaton´s model must be modified. A probability distribution to characterize the number of days needed to estimate energy intake for subjects in population was considered.

Idioma originalEspañol
Páginas (desde-hasta)359-367
Número de páginas9
PublicaciónRevista Chilena de Nutricion
Volumen43
N.º4
DOI
EstadoPublished - dic 1 2016

Huella dactilar

Energy Intake
energy intake
probability distribution
Dietetics
dietetics
nutrient deficiencies
college students
autocorrelation
food consumption
gold
Population
time series analysis
Students
Food

All Science Journal Classification (ASJC) codes

  • Food Science
  • Nutrition and Dietetics

Citar esto

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title = "Caracter{\'i}sticas de la variaci{\'o}n de la ingesta diaria de energ{\'i}a de las mujeres j{\'o}venes universitarias de estratos socioecon{\'o}micos medios en la ciudad de Bogot{\'a}",
abstract = "Introduction: The gold standard to estimate individual usual intake is the mean of multiple day’s intake. This estimation procedure is based on Beaton´s model, who consider independence and two sources of variation: between and within subjects. There are evidences and physiological arguments against validity of Beaton´s hypothesis, this fact could have relevant effects in dietetic assessment. Subjects and Methods: A food consumption of 43 middle class university women was recorded during 28 days. They were trained in order to assure quality records. Results: Low values in energy intake were reported, and no differences between energy intake during weekend and weekdays was observed. Considering reported intakes for each person as a time series, no autocorrelations was observed considering lags within 1 to 7 days. Differences in within subjects variances was observed. Conclusion: Deficiencies in subject´s energy intake corresponds to disorders in university students´ nutrition, such deficiencies could be the explanation of the observed independence in daily energy intake despite evidences of the existence of correlations reported in different papers. The hypothesis of variance homogeneity was not true, so it was not correct to talk about a “within variance”, instead a population´s probability distributions for variances was considered, as a consequence Beaton´s model must be modified. A probability distribution to characterize the number of days needed to estimate energy intake for subjects in population was considered.",
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Características de la variación de la ingesta diaria de energía de las mujeres jóvenes universitarias de estratos socioeconómicos medios en la ciudad de Bogotá. / Monterrey G., Pedro; Cortés S., Lilia; Ariza G., Miller.

En: Revista Chilena de Nutricion, Vol. 43, N.º 4, 01.12.2016, p. 359-367.

Resultado de la investigación: Contribución a RevistaArtículo

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