Hongtao Liu1, Xia Deng2, Yudong Peng3, Qiutang Zeng3, Zongren Song4, Wenping He4, Le Zhang4, Gan Gao4, Ting Xiao4, Xuedong Yu4. 1. Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, Guangdong Province 518110, China. Electronic address: liuhongtaosz@126.com. 2. Pharmacy Department, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, Guangdong Province 518110, China. 3. Department of Institute of Cardiovascular Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province 430022, China. 4. Department of Cardiovascular Medicine, Shenzhen Longhua District Central Hospital, Longhua Central Hospital Affiliated Guangdong Medical University, Shenzhen, Guangdong Province 518110, China.
Abstract
BACKGROUND: Non-high-density lipoprotein cholesterol (non-HDL-C) has been proposed an independent risk factor for coronary heart disease (CHD). However, the magnitude of this association in the general population varied considerably. OBJECTIVE: To investigate the association of baseline non-HDL-C level with CHD risk in the general population by conducting a meta-analysis. METHODS: A comprehensive literature search was performed in the Pubmed and Embase until January 2017. Prospective observational studies that investigated the association between baseline non-HDL-C level and CHD risk in the general population were included. Pooled hazard ratio (HR) and corresponding 95% confidence interval (CI) were calculated for the highest vs. the lowest non-HDL-C category. RESULTS: Seven articles with 9 independent prospective studies involving 448,732 individuals were included. Meta-analysis showed that individuals with the highest non-HDL-C level at baseline were associated with greater risk of CHD (RR 1.79; 95% CI 1.68-1.91) than those in the lowest non-HDL-C level category. Subgroup analysis suggested that the risk of CHD seemed more pronounced among men (HR 1.98; 95% CI 1.70-2.30) than among women (HR 1.63; 95% CI 1.35-1.96). CONCLUSIONS: Higher baseline non-HDL-C level is associated with increased risk of CHD in the general population. This risk seems more pronounced in men than in women. However, gender difference in non-HDL-C level associated with CHD risk should be verified by more well-designed prospective studies.
BACKGROUND: Non-high-density lipoprotein cholesterol (non-HDL-C) has been proposed an independent risk factor for coronary heart disease (CHD). However, the magnitude of this association in the general population varied considerably. OBJECTIVE: To investigate the association of baseline non-HDL-C level with CHD risk in the general population by conducting a meta-analysis. METHODS: A comprehensive literature search was performed in the Pubmed and Embase until January 2017. Prospective observational studies that investigated the association between baseline non-HDL-C level and CHD risk in the general population were included. Pooled hazard ratio (HR) and corresponding 95% confidence interval (CI) were calculated for the highest vs. the lowest non-HDL-C category. RESULTS: Seven articles with 9 independent prospective studies involving 448,732 individuals were included. Meta-analysis showed that individuals with the highest non-HDL-C level at baseline were associated with greater risk of CHD (RR 1.79; 95% CI 1.68-1.91) than those in the lowest non-HDL-C level category. Subgroup analysis suggested that the risk of CHD seemed more pronounced among men (HR 1.98; 95% CI 1.70-2.30) than among women (HR 1.63; 95% CI 1.35-1.96). CONCLUSIONS: Higher baseline non-HDL-C level is associated with increased risk of CHD in the general population. This risk seems more pronounced in men than in women. However, gender difference in non-HDL-C level associated with CHD risk should be verified by more well-designed prospective studies.