Original Article
European Journal of Clinical Nutrition advance online publication 16 September 2009; doi: 10.1038/ejcn.2009.119
Anthropometric, metabolic, dietary and psychosocial profiles of underreporters of energy intake: a doubly labeled water study among overweight/obese postmenopausal women—a Montreal Ottawa New Emerging Team study
A D Karelis1, M-E Lavoie2, J Fontaine2, V Messier2, I Strychar2,3,4, R Rabasa-Lhoret2,3,4,5 and É Doucet6
- 1Department of Kinanthropology, University of Quebec at Montreal, Montreal, Quebec, Canada
- 2Department of Nutrition, University of Montreal, Montreal, Quebec, Canada
- 3Centre de recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montreal, Quebec, Canada
- 4Montreal Diabetes Research Center of the CRCHUM, Montreal, Quebec, Canada
- 5Institut de recherches cliniques de Montréal (IRCM), Montreal, Quebec, Canada
- 6School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
Correspondence: Professor AD Karelis, Department of Kinanthropology, University du Quebec at Montreal, Case postale 8888, succursale Centre-ville, Montreal, Quebec, Canada H3C 3P8. E-mail: karelis.antony@uqam.ca
Received 10 March 2009; Revised 26 July 2009; Accepted 27 July 2009; Published online 16 September 2009.
Abstract
Background/Objectives:
To analyze the anthropometric, metabolic, psychosocial and dietary profiles of underreporters, identified by the doubly labeled water technique, in a well-characterized population of overweight and obese postmenopausal women.
Subjects/Methods:
The study population consisted of 87 overweight and obese sedentary postmenopausal women (age: 57.7
4.8 years, body mass index: 32.44.6 kg/m2). Subjects were identified as underreporters based on the energy intake to energy expenditure ratio of <0.80. We measured (1) body composition (by dual-energy X-ray absorptiometry), (2) visceral fat (by computed tomography), (3) blood profile, (4) resting blood pressure, (5) peak oxygen consumption (VO2 peak), (6) total energy expenditure, (7) muscle strength and (8) psychosocial and dietary profiles.
Results:
Out of 87 subjects, 50 (57.5%) were identified as underreporting subjects in our cohort. Underreporters showed higher levels of body mass index, fat mass, visceral fat, hsC-reactive protein, perceived stress and percentage of energy from protein, as well as lower levels of VO2 peak, dietary intake of calcium, fiber, iron, vitamin B-1 and 6, as well as servings of fruit and vegetables. Logistic regression analysis showed that fat mass, odd ratio 1.068 (95% confidence interval 1.009–1.130) and perceived stress, odd ratio 1.084 (95% confidence interval 1.011–1.162) were independent characteristics of underreporters.
Conclusions:
Results from this study show significant differences in anthropometric, metabolic, psychosocial and dietary profiles between underreporters and non-underreporters in our cohort of overweight and obese postmenopausal women.
Keywords:
underreporters, body composition, obesity, perceived stress, energy expenditure and doubly labeled water
