Abstract
PurposeMore than 150 million people are estimated to have been examined for the presence of carotid plaques (CPs) in China; a sex-related imbalance in the prevalence exists. However, the relationship between sex and the incidence of CP development is unclear, especially in low-income areas of China. Hence, this study aimed to identify the sex differences in CP development and CP burden in both sexes in this population.MethodsThe study population included individuals aged ≥45 years in a rural area of Tianjin, China. Carotid ultrasonography was performed in the 2014 and 2019 cohorts, and information on carotid ultrasonography, including the formation and number of CPs, was collected twice. Logistic analyses were used to investigate the predictors of CP formation and numbers of plaques.ResultsA total of 1479 participants were analyzed. The incidence of CP was 20.3% and 29.0% in women and men, respectively. In women, high low-density lipoprotein cholesterol (LDL-C) levels was independent predictors of CP formation (RR: 1.217, 95%CI: 1.010, 1.461; P=0.039). For men, the corresponding predictors were hypertension, alcohol consumption, and low high-density lipoprotein cholesterol (HDL-C) levels (all P<0.05); none of the examined factors were associated with plaque numbers.ConclusionIn the study population, men had a higher incidence of plaque than women. Predictors of CP are different in men and women. LDL-C control is critical for moderating atherosclerosis in women; in men, managing blood pressure, stopping alcohol consumption, and controlling HDL-C levels are important.
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