title: Factors affecting fatigue in patients with type II diabetes mellitus in Korea.
abstract: OBJECTIVE
  This study aimed to characterize and identify the factors affecting fatigue in patients with type II diabetes mellitus in Korea.
  
  
  METHODS
  A total of 180 patients with type II diabetes mellitus were recruited from the outpatient clinic of a tertiary care hospital. For data collection, a questionnaire survey of diabetes history, hypoglycemia symptoms, and fatigue was conducted between January and February 2011. Data were analyzed using t test, analysis of variance, Pearson's correlation, and hierarchical multiple regression.
  
  
  RESULTS
  The mean fatigue and hypoglycemia symptom scores of patients with type II diabetes mellitus were 2.88 ± 0.61 and 6.18 ± 12.60, respectively. Hypoglycemia symptoms (p = .004), disease duration (p < .001), and age (p < .001) correlated positively with fatigue. Hierarchical multiple regression analysis revealed that hypoglycemia symptoms was the variable positively influencing fatigue in patients with type II diabetes mellitus after adjustment for influences of demographic and clinical characteristic variables.
  
  
  CONCLUSIONS
  Hypoglycemia symptoms were confirmed to be a predictor of fatigue. Consequently, it is essential to consider age, and disease duration as well as hypoglycemia symptoms to intervene fatigue effectively among patients with type II diabetes mellitus.
authors.affiliation: Department of Nursing, Gyeongnam National University of Science and Technology, Jinju, South Korea.
authors.forename: Yeong-Mi
authors.initials: YM
authors.lastname: Seo
authors.forename: Jong Ryeal
authors.initials: JR
authors.lastname: Hahm
authors.affiliation: Department of Internal Medicine, Institute of Health Science, Gyeongsang National University School of Medicine, Jinju, South Korea.
authors.forename: Jong-Ryeal
authors.initials: JR
authors.lastname: Hahm
authors.affiliation: Department of Nursing, Dong-Eui Institute of Technology College, Busan, South Korea.
authors.forename: Tae-Kyung
authors.initials: TK
authors.lastname: Kim
authors.affiliation: Department of Nursing, Kyungsung University, Busan, South Korea. Electronic address: whchoi@ks.ac.kr.
authors.forename: Won-Hee
authors.initials: WH
authors.lastname: Choi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D003430:Cross-Sectional Studies; D003924:Diabetes Mellitus, Type 2 / Q000150:complications / Q000453:epidemiology*; D005221:Fatigue / Q000150:complications / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007003:Hypoglycemia / Q000150:complications / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D056910:Republic of Korea / Q000453:epidemiology; D012189:Retrospective Studies; D012307:Risk Factors; D011795:Surveys and Questionnaires; D055815:Young Adult
keywords: fatigue; hypoglycemia; type 2 diabetes mellitus