J Korean Med Sci.  2015 Aug;30(8):1017-1024. 10.3346/jkms.2015.30.8.1017.

Interaction Effect between Weight Perception and Comorbidities on Weight Control Behavior in Overweight and Obese Adults: Is There a Sex Difference?

• Hwang JH
• Ryu DH
• Park SW

• KMID: 2164494
• DOI: http://doi.org/10.3346/jkms.2015.30.8.1017

Abstract

We investigated the interaction effect between body weight perception and chronic disease comorbidities on body weight control behavior in overweight/obese Korean adults. We analyzed data from 9,138 overweight/obese adults > or =20 yr of age from a nationally representative cross-sectional survey. Multiple logistic regression using an interaction model was performed to estimate the effect of chronic disease comorbidities on weight control behavior regarding weight perception. Adjusted odds ratios for weight control behavior tended to increase significantly with an increasing number of comorbidities in men regardless of weight perception (P<0.05 for trend), suggesting no interaction. Unlike women who perceived their weight accurately, women who under-perceived their weight did not show significant improvements in weight control behavior even with an increasing number of comorbidities. Thus, a significant interaction between weight perception and comorbidities was found only in women (P=0.031 for interaction). The effect of the relationship between accurate weight perception and chronic disease comorbidities on weight control behavior varied by sex. Improving awareness of body image is particularly necessary for overweight and obese women to prevent complications.

Keyword

Comorbidity; Body Image; Weight Perception; Obesity

MeSH Terms

Adult
Aged
Aged, 80 and over
*Body Image
Body Mass Index
Comorbidity
Educational Status
Female
Health Behavior
Humans
Male
Middle Aged
Obesity/*epidemiology/*prevention & control
Patient Compliance/*statistics & numerical data
Prevalence
Republic of Korea/epidemiology
Risk Factors
Sex Characteristics
Sex Distribution
Smoking/epidemiology
Socioeconomic Factors
Treatment Outcome
*Weight Perception
Weight Reduction Programs/*utilization
Young Adult

Figure

• 

  Fig. 1 Adjusted odds ratios (95% confidence intervals) for weight control behavior by weight perception and number of comorbidities. *Self-reported as having received a diagnosis of hypertension or diabetes by a physician; †Adjusted for age, household income, education level, marital status, smoking, body mass index (BMI), and chronic disease comorbidities.

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