Introduction: Dyslipidemia is one of the major risk factors for atherosclerosis and the main cause of death in the developing and developed countries. In this cohort study, the incidence of dyslipidemia and its components have been studied among individuals over 20 years old in Ahvaz, southwest of Iran.
Materials and methods: The Phase 1 of this study was conducted on the prevalence of Metabolic syndrome and its related factors by Diabetes Research Center in 2009. The target population included individuals over 20 years old who were selected using cluster sampling in Ahvaz health centers. In the second phase of the study, 5 years later in 2014, subjects were again recalled by health centers. Questionnaires, anthropometric indices and measurements were repeated similar to Phase 1. The blood sample was taken from everyone after 12h of fasting and then the factors (Chol, TG, HDL) were measured.
Results: The cumulative incidence of dyslipidemia obtained 60.7% (males 56.7% and females 64.8%). lipid profile {HDL, Triglycerides and Cholesterol had changes in their means(a significant reduction in the mean about 10, 22.25 and 13 units respectively) between baseline and 5 years later. Waist circumference here associated with incidence of high LDL and high chol, also sex and High LDL 'educational level and daily consumption of vegetables were associated with incidence of low HDL and dyslipidemia respectively.
Conclusion: Age, educational level and daily intake of fruits and vegetables were effective variables on incidence of dyslipidemia. According to various studies, LDL and HDL levels in different regions of Iran, seems to be influenced by factors such as climate, nutrition and activity levels.
Keywords: Cohor study; Dyslipidemia; Incidence.
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