title: Gender Differences in Major Dietary Patterns and Their Relationship with Cardio-Metabolic Risk Factors in a Year before Coronary Artery Bypass Grafting (CABG) Surgery Period.
abstract: BACKGROUND
  Previous studies reported the association between dietary patterns and prevalence of diabetes, cardiovascular disease and other chronic disease. However, there are no studies reporting major dietary patterns in patients awaiting coronary artery bypass graft surgery (CABG). The aim of this study was to obtain the major dietary patterns and their association with demographic, dietary factors and biochemical parameters in these patients.
  
  
  METHODS
  This was a cross-sectional study on 454 patients aged 35 - 80 years as candidates of CABG and hospitalized in the Tehran Heart Center. Anthropometric and demographic characteristics were obtained from all participants and a 138-item semi-quantitative food frequency questionnaire (FFQ) was used to evaluate dietary patterns by factor analysis. Biochemical parameters including HbA1c, serum lipids, hematocrit (HCT), albumin, creatinine and CRP were assessed by commercial laboratory methods.
  
  
  RESULTS
  Five major dietary patterns, including: healthy, intermediate, neo-traditional, western and semi-Mediterranean patterns were extracted. Top quartile of healthy pattern was associated with higher educational attainment and lower serum low-density lipoprotein cholesterol (LDL), and total cholesterol (TC) in men, as well as  higher high-density lipoprotein cholesterol (HDL) concentrations in women (P < 0.001). Individuals in top quartiles of intermediate and neo-traditional pattern were more likely to be male, had higher smoking and drinking habits, as well as the lower prevalence of diabetes, hyperlipidemia and hypertension (P < 0.05). They also had higher serum triglyceride (TG) concentrations. Patients in the western pattern also had a higher prevalence of a family history of cardiovascular disease and higher serum TG concentrations. Top quartiles of semi-Mediterranean pattern were associated with lower C-reactive protein (CRP) concentrations in women.
  
  
  CONCLUSIONS
  There were five major dietary patterns using FFQ among patients awaiting CABG surgery. Significant associations were observed between major dietary patterns and risk of diabetes and hypertension. Top quartiles of healthy eating patterns were associated with lower cardio-metabolic risk factors.
authors.affiliation: Nutrition Research Center, Department of Community Nutrition, School of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Mahdieh
authors.initials: M
authors.lastname: Abbasalizad Farhangi
authors.affiliation: Department of Nutrition, Faculty of Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran.
authors.forename: Asal
authors.initials: A
authors.lastname: Ataie-Jafari
authors.affiliation: Research Department, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran. najafik@sina.tums.ac.ir.
authors.forename: Mahdi
authors.initials: M
authors.lastname: Najafi
authors.affiliation: Statistics Department, Kharazmi University, Tehran, Iran.
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Sarami Foroushani
authors.affiliation: Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Mohajeri Tehrani
authors.affiliation: Department of Health Education and Health Promotion, School of Public Health, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Leila
authors.initials: L
authors.lastname: Jahangiry
mesh_terms: D000368:Aged; D002318:Cardiovascular Diseases / Q000453:epidemiology* / Q000601:surgery; D008076:Cholesterol, HDL / Q000097:blood; D001026:Coronary Artery Bypass; D003430:Cross-Sectional Studies; D004032:Diet / Q000145:classification*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012737:Sex Factors; D014280:Triglycerides / Q000097:blood
chemical_list: D008076:Cholesterol, HDL; D014280:Triglycerides