Predicting Energy Expenditure in Extremely Obese Women
Autor: | Carrie P. Earthman, Bret J. Valentine, Tiffany R. Beckman, Shalamar D. Sibley, Sayeed Ikramuddin, Todd A. Kellogg, Jennifer R. Dobratz |
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Rok vydání: | 2007 |
Předmět: |
Adult
medicine.medical_specialty 030309 nutrition & dietetics Medicine (miscellaneous) 030209 endocrinology & metabolism Body weight Sensitivity and Specificity Mean difference World health Body Mass Index 03 medical and health sciences 0302 clinical medicine Predictive Value of Tests Internal medicine Statistics medicine Humans Resting energy expenditure 0303 health sciences Nutrition and Dietetics business.industry Nutritional Requirements Reproducibility of Results Calorimetry Indirect Middle Aged medicine.disease Obesity Clinical method Obesity Morbid Nutrition Assessment Endocrinology Energy expenditure Female Basal Metabolism Energy Metabolism business Body mass index Mathematics |
Zdroj: | Journal of Parenteral and Enteral Nutrition. 31:217-227 |
ISSN: | 1941-2444 0148-6071 |
DOI: | 10.1177/0148607107031003217 |
Popis: | The most common clinical method for resting energy expenditure (REE) assessment is prediction equations. The purpose of this study was to elucidate which prediction equation is most accurate for REE assessment in extremely obese women.Fourteen extremely obese women (mean +/- SD body mass index: 49.8 +/- 6.2 kg/m(2); age: 49 +/- 10 years) were measured for height and weight and REE via indirect calorimetry (IC) by a metabolic cart system. Predicted REE was evaluated by several equations, including Harris-Benedict with actual body weight, Harris-Benedict with several adjustments to body weight, Cunningham, Mifflin-St Jeor, Owen, World Health Organization (WHO), and Bernstein equations. Accuracy was determined by mean difference data (IC REE - equation REE; Student's paired t-test), correlation coefficients, and agreement between methods by Bland-Altman plots. Accuracy was also evaluated on an individual basis, defined by the percentage of individuals within +/-10% of IC REE.The Mifflin-St Jeor, Harris-Benedict with actual body weight, and the WHO equations were the most accurate in terms of mean predicted REE. The mean predicted REE values by all other equations were different from the IC REE values (p.1). According to the individual data, the Mifflin-St Jeor was most accurate (14% outside +/-10% IC REE). The Harris-Benedict with actual body weight and WHO equations were less accurate on individual terms, with 29% and 42% of the predicted REE values, respectively, falling outside +/-10% of IC REE.The Mifflin-St Jeor equation was most accurate method for REE assessment in extremely obese women. |
Databáze: | OpenAIRE |
Externí odkaz: |
Abstrakt: | The most common clinical method for resting energy expenditure (REE) assessment is prediction equations. The purpose of this study was to elucidate which prediction equation is most accurate for REE assessment in extremely obese women.Fourteen extremely obese women (mean +/- SD body mass index: 49.8 +/- 6.2 kg/m(2); age: 49 +/- 10 years) were measured for height and weight and REE via indirect calorimetry (IC) by a metabolic cart system. Predicted REE was evaluated by several equations, including Harris-Benedict with actual body weight, Harris-Benedict with several adjustments to body weight, Cunningham, Mifflin-St Jeor, Owen, World Health Organization (WHO), and Bernstein equations. Accuracy was determined by mean difference data (IC REE - equation REE; Student's paired t-test), correlation coefficients, and agreement between methods by Bland-Altman plots. Accuracy was also evaluated on an individual basis, defined by the percentage of individuals within +/-10% of IC REE.The Mifflin-St Jeor, Harris-Benedict with actual body weight, and the WHO equations were the most accurate in terms of mean predicted REE. The mean predicted REE values by all other equations were different from the IC REE values (p.1). According to the individual data, the Mifflin-St Jeor was most accurate (14% outside +/-10% IC REE). The Harris-Benedict with actual body weight and WHO equations were less accurate on individual terms, with 29% and 42% of the predicted REE values, respectively, falling outside +/-10% of IC REE.The Mifflin-St Jeor equation was most accurate method for REE assessment in extremely obese women. |
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ISSN: | 19412444 01486071 |
DOI: | 10.1177/0148607107031003217 |