title: Gender difference in the association of metabolic syndrome and its components with age-related cataract: the Korea National Health and Nutrition Examination Survey 2008-2010.
abstract: OBJECTIVE
  To explore the relationship of the metabolic syndrome (MetS) and its components with age-related cataract in a representative Korean population.
  
  
  METHODS
  We analyzed the data from the Korea National Health and Nutrition Examination Surveys (2008-2010). A total of 11,076 adults (4,811 men and 6,265 women) aged 40 and over who completed ophthalmologic examination were evaluated. Cataract was defined as the presence of cortical, nuclear, anterior (sub)capsular or posterior subcapsular cataract, from slit-lamp examination or previous cataract surgery. MetS was defined according to the Joint Interim Statement proposed in 2009 from the International Diabetes Federation and the American Heart Association/National Heart, Lung, and Blood Institute.
  
  
  RESULTS
  The prevalence of cataract and MetS in this population was 39.4% (37.1% for men and 41.6% for women) and 38.5% (37.6% for men and 39.4% for women), respectively. Cataract prevalence tended to increase with the number of MetS components in both genders (both P< 0.001). After being controlled for confounders, however, MetS was significantly associated with cataract only in women (adjusted odds ratio (aOR), 1.24; 95% confidence interval (CI), 1.02-1.50]. Reduced HDL cholesterol, elevated fasting glucose, and elevated triglycerides were also significantly associated with cataract in women (aOR, 95% CI; 1.27 (1.07-1.50), 1.23 (1.01-1.50), and 1.26 (1.04-1.52), respectively). In the subgroup analysis for cataract subtype, MetS and reduced HDL cholesterol were significantly associated with nuclear cataract in women (aOR, 95% CI; 1.25 (1.07-1.55) and 1.25 (1.03-1.52), respectively). However, such associations were not found in men.
  
  
  CONCLUSIONS
  Our results suggest that MetS and its components appear to be associated with age-related cataract only among Korean women, especially in nuclear cataract.
authors.affiliation: Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Park
authors.affiliation: Department of Ophthalmology and Visual Science, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Jeong Ah
authors.initials: JA
authors.lastname: Shin
authors.affiliation: Department of Biostatistics, College of Medicine, The Catholic University of Korea, Seoul, Korea ; Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Kyungdo
authors.initials: K
authors.lastname: Han
authors.affiliation: Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Hyeon Woo
authors.initials: HW
authors.lastname: Yim
authors.affiliation: Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors.forename: Won-Chul
authors.initials: WC
authors.lastname: Lee
authors.affiliation: Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea ; Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, United States of America.
authors.forename: Yong-Moon
authors.initials: YM
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D001786:Blood Glucose / Q000378:metabolism; D002386:Cataract / Q000097:blood / Q000150:complications / Q000453:epidemiology* / Q000473:pathology; D008076:Cholesterol, HDL / Q000097:blood; D005260:Female; D006801:Humans; D015228:Hypertriglyceridemia / Q000097:blood / Q000150:complications / Q000453:epidemiology* / Q000473:pathology; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood / Q000150:complications / Q000453:epidemiology* / Q000473:pathology; D008875:Middle Aged; D009749:Nutrition Surveys; D016017:Odds Ratio; D015995:Prevalence; D056910:Republic of Korea / Q000453:epidemiology; D012307:Risk Factors; D012737:Sex Factors; D014280:Triglycerides / Q000097:blood
chemical_list: D001786:Blood Glucose; D008076:Cholesterol, HDL; D014280:Triglycerides