title: Gender Difference in the Level of HDL Cholesterol in Korean Adults.
abstract: BACKGROUND
  High density lipoprotein (HDL) cholesterol level varies with ethnicity and gender. In Korea there has not been an agreement on standards for HDL cholesterol level. Therefore, in order to establish a foundation for research on HDL cholesterol, we investigated the gender difference in HDL cholesterol level after adjusting associated factors.
  
  
  METHODS
  The study population included 4,465 individuals (1,833 men, 2,632 women) representing 33,502,918 Koreans 20 years of age or older, who participated in the 2005 Korean National Health and Nutrition Survey. After stratifying by gender, we analyzed the HDL cholesterol level according to the general characteristics of the study population. Then we identified independent factors associated with HDL cholesterol level. After adjusting for covariates, we estimated the gender difference in HDL cholesterol level.
  
  
  RESULTS
  We demonstrated that age, current smoking, body mass index, alcohol intake, triglyceride and low density lipoprotein cholesterol level have significant impact on HDL cholesterol level. In addition, educational status was also an important factor for men, while fat intake was a significant factor for women. After adjusting associated factors, the means (standard errors) of HDL cholesterol level were 43.8 (0.2) mg/dL in men and 46.3 (0.2) mg/dL in women, respectively.
  
  
  CONCLUSIONS
  The mean gender difference in HDL level (2.5 mg/dL) in Korean adults was, therefore, less than those observed in previous western studies.
authors: Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea.
authors: Hye Jin
authors: HJ
authors: Kim
authors: Hyun Ah
authors: HA
authors: Park
authors: Young Gyu
authors: YG
authors: Cho
authors: Jae Heon
authors: JH
authors: Kang
authors: Kyoung Woo
authors: KW
authors: Kim
authors: Joo Ho
authors: JH
authors: Kang
authors: Nu-Ri
authors: NR
authors: Kim
authors: Won-Chin
authors: WC
authors: Chung
authors: Cheol Hwan
authors: CH
authors: Kim
authors: Dong Hee
authors: DH
authors: Whang
authors: Jin Kyun
authors: JK
authors: Park