scholarly journals U-Shaped Association of High-Density Lipoprotein Cholesterol with All-Cause and Cardiovascular Mortality in Hypertensive Population

2020 ◽  
Vol Volume 13 ◽  
pp. 2013-2025
Author(s):  
Chao-lei Chen ◽  
Xiaocong Liu ◽  
Lin Liu ◽  
Kenneth Lo ◽  
Yuling Yu ◽  
...  
2021 ◽  
Vol 8 ◽  
Author(s):  
Qi Cheng ◽  
Xiao-cong Liu ◽  
Chao-lei Chen ◽  
Yu-qing Huang ◽  
Ying-qing Feng ◽  
...  

Background: Non-high-density lipoprotein cholesterol (non-HDL-C) is a valuable indicator in routine blood lipid tests, but the associations of non-HDL-C with mortality in hypertensive population still remain uncertain.Methods: In the National Health and Nutrition Examination Surveys from 1999 to 2014, participants having hypertension were included and grouped by non-HDL-C levels (<130, 130–159, 160–189, 190–219, and ≥220 mg/dl). Multivariate Cox regression was conducted for calculation of hazard ratios (HR) and 95% confidence interval (CI). To reveal the relationship between non-HDL-C and mortality, Kaplan–Meier survival curves, restricted cubic spline, linear regression, and subgroup analysis were also applied.Results: A total of 12,169 participants (47.52% males, mean age 57.27 ± 15.79 years) were included. During average follow-up of 92.5 months, 1,946 (15.99%) all-cause deaths and 422 (3.47%) cardiovascular deaths occurred. After adjusting for confounders, the association of non-HDL-C with mortality was detected as U-shaped. Threshold values were observed at 158 mg/dl for all-cause mortality and 190 mg/dl as to cardiovascular mortality. Below the threshold, every 10 mg/dl increment in non-HDL-C attributed to relatively low all-cause mortality significantly (HR = 0.94, 95% CI: 0.92–0.96). Above the threshold, non-HDL-C has significant positive associations with both all-cause (HR = 1.03, 95% CI: 1.01–1.05) and cardiovascular mortality (HR = 1.09, 95% CI: 1.05–1.14). For subgroups analysis, similar results were found among participants age <65 years old, non-white population, those were not taking lipid-lowering drugs, and subjects with body mass index (BMI) ≥25 kg/m2.Conclusion: The U-shaped association was detected between non-HDL-C and mortality among hypertensive population.


2018 ◽  
Vol 26 (5) ◽  
pp. 533-543 ◽  
Author(s):  
Haris Riaz ◽  
Safi U Khan ◽  
Hammad Rahman ◽  
Nishant P Shah ◽  
Edo Kaluski ◽  
...  

Background The effects of increasing high-density lipoprotein cholesterol on cardiovascular outcomes remain uncertain. Design We conducted a meta-analysis to investigate the effects of high-density lipoprotein cholesterol modifiers (niacin, fibrates and cholesteryl ester transfer protein inhibitors) on cardiovascular outcomes. Methods Thirty-one randomized controlled trials (154,601 patients) with a follow-up of 6 months or more and a sample size of 100 or more patients were selected using MEDLINE, EMBASE and CENTRAL database (inception January 2018). Results High-density lipoprotein cholesterol modifiers had no statistically significant effect on cardiovascular mortality in terms of relative risk (RR) (RR 0.94, 95% confidence interval (CI) 0.89–1.00, P = 0.05, I2 = 13%) or absolute risk (risk difference −0.0001, 95% CI −0.0014, 0.0011, P = 0.84, I2 = 28%). High-density lipoprotein cholesterol modifiers reduced the RR of myocardial infarction (RR 0.87, 95% CI 0.82–0.93, P < 0.001, I2 = 37%). This significant effect was derived by the use of fibrates (RR 0.80, 95% CI 0.73–0.87, P < 0.001, I2 = 22%) and meta-regression analysis showed that this benefit was consistent with an absolute reduction in low-density lipoprotein cholesterol. High-density lipoprotein cholesterol modifiers had no effect on stroke (RR 1.00, 95% CI 0.93–1.09, P = 0.94, I2 = 25%) or all-cause mortality (RR 1.02, 95% CI 0.97–1.08, P = 0.48, I2 = 49%). Meta-regression analyses failed to demonstrate a significant association of pharmacologically increased high-density lipoprotein cholesterol with key endpoints. In studies with background statin therapy, high-density lipoprotein cholesterol modifiers had no statistically significant impact on cardiovascular mortality, myocardial infarction, stroke or all-cause mortality ( P > 0.05). Conclusion The use of high-density lipoprotein cholesterol modifying treatments had no significant effect on cardiovascular mortality, stroke or all-cause mortality. The beneficial effect on myocardial infarction was lost when drugs were used with statin therapy.


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