Discordancia en autopercepción de peso en población adulta de Talca / Discordance between nutritional status and self perception of weight among adults from Talca, Chile
Rev. méd. Chile
;
137(1): 76-82, ene. 2009. tab
Article
in Spanish
| LILACS
| ID: lil-511847
ABSTRACT
Background:
Obesity is related to underestimation of ones own weight.Aim:
To determine the agreement between nutritional status and self perception of weight status in apparently healthy adults from Talca. Subjects andmethods:
Data were obtained from a survey applied at 1007 randomly selected subjects, aged 18-74 years old (66% women). The survey identified age, gender, educational level and socioeconomic status. Self-perception of weight was estimated with pictures representing the four nutritional status categories underweight, normal, overweight and obese. Body Mass Index (BMI, kg/m2) was calculated todetermine nutritional status. Statistical analysis included kappa index, Bowmans symmetry test and a logistic regression model to calculate the odds ratio in different variables related tounderestimation of weight.Results:
Seventy three percent of subjects were overweight or obese and 44% underestimated their nutritional status. Sixty percent of subjects with a BMI between 25 and 26 kg/m2, perceived themselves as normal. A higher underestimation was observed in obesesubjects (odds ratio (OR) 17.2 95% confidence intervals (CI) 10.9-27.1), in overweight individuals (OR 3.5 95% CI 2.3-5.3), in men (OR 1.5 95% CI 1.1-2.1) and in people aged from 45 to 59 years (OR 1.7 95% CI 1.0-2.7).Conclusion:
Almost half of studied population had an erroneous self perception of weight, mainly due to underestimation. Obese subjects, males and people older than 45 years were those with the higher degree of underestimation.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Self Concept
/
Body Weight
/
Nutritional Status
/
Obesity
Type of study:
Prognostic study
Limits:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
Country/Region as subject:
South America
/
Chile
Language:
Spanish
Journal:
Rev. méd. Chile
Journal subject:
Medicine
Year:
2009
Type:
Article
Affiliation country:
Chile
Institution/Affiliation country:
Universidad de Talca/CL
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