title: Factors associated with health-related quality of life among overweight or obese adults.
abstract: OBJECTIVE
  To identify factors associated with health-related quality of life among overweight or obese adults.
  
  
  BACKGROUND
  The obesity epidemic presents a global challenge. Obesity is associated with lower health-related quality of life; however, no study has comprehensively examined correlates of health-related quality of life in this population.
  
  
  METHODS
  A cross-sectional design.
  
  
  METHODS
  The physical component score, mental component score and eight domain scores of the Short Form-36 v2 were used to assess health-related quality of life. We identified 23 possible correlates of health-related quality of life, including age, body mass index, health and weight histories, perceived stress, cholesterol-lowering diet self-efficacy, problem-solving, binge eating, dietary intake and physical activity. Correlational analyses were used to examine the bivariate associations between correlates and health-related quality of life variables. All possible subsets regression was used to develop predictive models of health-related quality of life.
  
  
  RESULTS
  The sample (n = 210) was predominantly White (84·8%), female (78·1%) and middle-aged (average age = 46·80 years). Age, body mass index, education, having children at home, and being hypertensive were identified as the best predictors of physical component score, explaining about 9% of the variance. Age, marital status, having hyperlipidaemia, perceived stress, problem-solving, self-efficacy, binge eating and barriers to healthy eating predicted mental component score, explaining approximately 48% of the variance. Physical functioning and role physical domains of health-related quality of life had similar sets of predictors, with 15% and 13% of the variance explained, respectively, while similar predictors were identified for bodily pain (6%), general health (26%), vitality (40%), social functioning (32%), role emotional (42%) and mental health (46%) domains.
  
  
  CONCLUSIONS
  Psychosocial factors were associated with the mental-related quality of life. Further exploration of factors related to physical-related quality of life is warranted in this population.
  
  
  CONCLUSIONS
  When working with overweight/obese adults who are trying to lose weight, nurses need to consider socio-demographic and psychosocial factors in the development of a treatment plan that will improve health-related quality of life in this population.
authors.affiliation: Department of Nursing Systems, University of Texas Health Science Center at Houston School of Nursing, Houston, TX 77030, USA. Jing.Wang@uth.tmc.edu
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Susan M
authors.initials: SM
authors.lastname: Sereika
authors.forename: Mindi A
authors.initials: MA
authors.lastname: Styn
authors.forename: Lora E
authors.initials: LE
authors.lastname: Burke
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000503:physiopathology*; D050177:Overweight / Q000503:physiopathology*; D011788:Quality of Life
keywords: Short Form-36 Health Survey; barriers; health-related quality of life; obesity; self-efficacy; stress