scholarly journals A U-Shaped Association between LDL-C/HDL-C Ratio and all-Cause Mortality in Elderly Hypertensive Patients: A Prospective Cohort Study

2020 ◽  
Author(s):  
Yu Yu ◽  
Minghui Li ◽  
Xiao Huang ◽  
Wei Zhou ◽  
Tao Wang ◽  
...  

Abstract Background: Low-density lipoprotein cholesterol/high-density lipoprotein- cholesterol (LDL-C/HDL-C) ratio is an excellent predictor of cardiovascular disease (CVD). However, previous studies linking LDL-C/HDL-C ratio to mortality have been inconsistent and limited by short follow-up. Therefore, the aim of the present study was to determine whether LDL-C/HDL-C ratio could be an effective predictor of all-cause mortality in elderly hypertensive patients.Methods: We selected 6,941 hypertensive patients aged 65 years or older and untreated with lipid-lowering drugs from the Chinese Hypertension Registry for analysis. The endpoint of the study was all-cause mortality. The relationship between LDL-C/HDL-C ratio and all-cause mortality by using multivariate cox proportional hazards regression, smoothing curve fitting (penalized spline method), subgroup analysis and Kaplan–Meier survival curve to address.Results: During a median follow-up of 1.72 years, 157 all-cause deaths occurred. A U-shaped association was found between LDL-C/HDL-C ratio and all-cause mortality. The LDL-C/HDL-C ratio was divided into five groups according to quintiles. Compared to the reference group (Q3: 1.67-2.10), both lower (Q1 and Q2) and higher (Q4 and Q5) LDL-C/HDL-C ratios were associated with higher all-cause mortality (<1.67: HR 1.81, 95% CI: 1.08-3.03; ≥2.10: HR 2.00, 95% CI: 1.18-3.39). Compare with lower and higher LDL-C/HDL-C ratio groups, patients with LDL-C/HDL-C ratio of 1.67-2.10 had a significant higher survival probability (log-rank P = 0.038).Conclusion: Our results suggested that there was a U-shaped association between LDL-C/HDL-C ratio and all-cause mortality. Both lower and higher LDL-C/HDL-C ratios were associated with increased all-cause mortality in elderly hypertensive patients.

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Yu Yu ◽  
Minghui Li ◽  
Xiao Huang ◽  
Wei Zhou ◽  
Tao Wang ◽  
...  

Abstract Background The low-density lipoprotein cholesterol/high-density lipoprotein- cholesterol (LDL-C/HDL-C) ratio is an excellent predictor of cardiovascular disease (CVD). However, previous studies linking the LDL-C/HDL-C ratio to mortality have yielded inconsistent results and been limited by short follow-up periods. Therefore, the aim of the present study was to determine whether the LDL-C/HDL-C ratio could be an effective predictor of all-cause mortality in elderly hypertensive patients. Methods A total of 6941 hypertensive patients aged 65 years or older who were not treated with lipid-lowering drugs were selected from the Chinese Hypertension Registry for analysis. The endpoint of the study was all-cause mortality. The relationship between the LDL-C/HDL-C ratio and all-cause mortality was determined using multivariate Cox proportional hazards regression, smoothing curve fitting (penalized spline method), subgroup analysis and Kaplan–Meier survival curve analysis. Results During a median follow-up of 1.72 years, 157 all-cause deaths occurred. A U-shaped association was found between the LDL-C/HDL-C ratio and all-cause mortality. Patients were divided according to the quintiles of the LDL-C/HDL-C ratio. Compared to the reference group (Q3: 1.67–2.10), patients with both lower (Q1 and Q2) and higher (Q4 and Q5) LDL-C/HDL-C ratios had higher all-cause mortality (< 1.67: HR 1.81, 95% CI: 1.08–3.03; ≥2.10: HR 2.00, 95% CI: 1.18–3.39). Compared with the lower and higher LDL-C/HDL-C ratio groups, patients with LDL-C/HDL-C ratios of 1.67–2.10 had a significantly higher survival probability (log-rank P = 0.038). Conclusions The results suggest that there is a U-shaped association between the LDL-C/HDL-C ratio and all-cause mortality. Both lower and higher LDL-C/HDL-C ratios were associated with increased all-cause mortality in elderly hypertensive patients.


2019 ◽  
Vol 8 (10) ◽  
pp. 1571 ◽  
Author(s):  
Sung ◽  
Huh ◽  
Ryu ◽  
Lee ◽  
Scorletti ◽  
...  

We aimed to test the association between low-density lipoprotein cholesterol (LDL-C) and cardiovascular disease (CVD), cancer, and all-cause mortality in non-statin users. A total of 347,971 subjects in Kangbuk Samsung Health Study (KSHS.57.4% men, mean follow up: 5.64 ± 3.27 years) were tested. To validate these associations, we analyzed data from another cohort (Korean genome and epidemiology study, KoGES, 182,943 subjects). All subjects treated with any lipid-lowering therapy and who died during the first 3 years of follow up were excluded. Five groups were defined according to baseline LDL-C concentration (<70, 70–99, 100–129, 130–159, ≥160 mg/dL). A total of 2028 deaths occurred during follow-up in KSHS. The lowest LDL-C group (LDL < 70 mg/dL) had a higher risk of all-cause mortality (HR 1.95, 1.55–2.47), CVD mortality (HR 2.02, 1.11–3.64), and cancer mortality (HR 2.06, 1.46–2.90) compared to the reference group (LDL 120–139 mg/dL). In the validation cohort, 2338 deaths occurred during follow-up. The lowest LDL-C group (LDL < 70 mg/dL) had a higher risk of all-cause mortality (HR 1.81, 1.44–2.28) compared to the reference group. Low levels of LDL-C concentration are strongly and independently associated with increased risk of cancer, CVD, and all-cause mortality. These findings suggest that more attention is needed for subjects with no statin-induced decrease in LDL-C concentrations.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Ryuichi Kawamoto ◽  
Asuka Kikuchi ◽  
Taichi Akase ◽  
Daisuke Ninomiya ◽  
Teru Kumagi

Abstract Background Low-density lipoprotein cholesterol (LDL-C) independently impacts aging-related health outcomes and plays a critical role in cardiovascular diseases (CVDs). However, there are limited predictive data on all-cause mortality, especially for the Japanese community population. In this study, it was examined whether LDL-C is related to survival prognosis based on 7 or 10 years of follow-up. Methods Participants included 1610 men (63 ± 14 years old) and 2074 women (65 ± 12 years old) who participated in the Nomura cohort study conducted in 2002 (first cohort) and 2014 (second cohort) and who continued throughout the follow-up periods (follow-up rates: 94.8 and 98.0%). Adjusted relative risk estimates were obtained for all-cause mortality using a basic resident register. The data were analyzed by a Cox regression with the time variable defined as the length between the age at the time of recruitment and that at the end of the study (the age of death or censoring), and risk factors including gender, age, body mass index (BMI), presence of diabetes, lipid levels, renal function, serum uric acid levels, blood pressure, and history of smoking, drinking, and CVD. Results Of the 3684 participants, 326 (8.8%) were confirmed to be deceased. Of these, 180 were men (11.2% of all men) and 146 were women (7.0% of all women). Lower LDL-C levels, gender (male), older age, BMI under 18.5 kg/m2, and the presence of diabetes were significant predictors for all-cause mortality. Compared with individuals with LDL-C levels of 144 mg/dL or higher, the multivariable-adjusted Hazard ratio (and 95% confidence interval) for all-cause mortality was 2.54 (1.58–4.07) for those with LDL-C levels below 70 mg/dL, 1.71 (1.15–2.54) for those with LDL-C levels between 70 mg/dL and 92 mg/dL, and 1.21 (0.87–1.68) for those with LDL-C levels between 93 mg/dL and 143 mg/dL. This association was particularly significant among participants who were male (P for interaction = 0.039) and had CKD (P for interaction = 0.015). Conclusions There is an inverse relationship between LDL-C levels and the risk of all-cause mortality, and this association is statistically significant.


Author(s):  
Salim S Virani ◽  
Lechauncy D Woodard ◽  
Supicha Sookanan ◽  
Cassie R Landrum ◽  
Tracy H Urech ◽  
...  

Background: Although current cholesterol performance measures define good quality as low density lipoprotein cholesterol (LDL-C) levels < 100mg/dl in cardiovascular disease (CVD) patients, they provide a snap shot at one time point and do not inform whether an appropriate action was taken to manage elevated LDL-C levels. We assessed frequency and predictors of this appropriate response (AR). Methods: We used administrative data to assess 22,902 CVD patients receiving care in a Veterans Affairs network of 7 hospitals and affiliated clinics. We determined the proportion of CVD patients at LDL-C goal <100 mg/dl, and the proportion of patients with uncontrolled LDL-C levels (>100 mg/dl) who had an AR [defined as the initiation or dosage increase of a lipid lowering medication (LLM), addition of a new LLM, receipt of maximum dosage or >1 LLM, or LDL-C reading <100 mg/dl] at 45 days follow-up. Logistic regression was performed to evaluate facility, provider and patient characteristics associated with AR. Results: LDL-C levels were at goal in 16,350 (71.4%) patients. An additional 2,110 (9.2%) had an AR at 45 days of follow-up. Controlling for clustering between facilities and patient's illness severity, history of diabetes (OR 1.18, 95% CI 1.03-1.35), hypertension (OR 1.21, 95% CI 1.02-1.44), patients showing good medication adherence (medication possession ratio > 0.8) [OR 2.29, 95% CI 1.99-2.64] were associated with AR. Older CVD patients (age >75 years) were less likely to receive AR (OR 0.60, 95% CI 0.52-0.70). Teaching vs. non-teaching facility (p=0.40), physician vs. non-physician provider (p=0.14), specialist vs. non-specialist primary care provider (p=0.12), and patient's race (p=0.12) were not predictors of AR. Conclusion: Among patients with CVD and LDL-C above guideline recommended levels, only one-third receive AR. Diabetic and hypertensive CVD patients are more likely to receive AR, whereas older Veterans with CVD receive AR less often likely reflecting providers' belief of lack of efficacy from treatment intensification in older CVD patients. Our findings are important for quality improvement and policy making initiatives as they provide more actionable information compared with isolated LDL-C goal attainment as a quality indicator.


2012 ◽  
Vol 11 (4) ◽  
pp. 36-41 ◽  
Author(s):  
F. T. Ageev ◽  
T. V. Fofanova ◽  
M. D. Smirnova ◽  
A. Sh. Tkhostov ◽  
A. S. Nelubina ◽  
...  

Aim. To assess the impact of automatic telephone survey with a differentiated reminder text, as well as of the survey combination with the self-control dairy, on the compliance with lipid-lowering and antihypertensive therapy and on therapy effectiveness during the longterm ambulatory follow-up. Material and methods. The study included 604 patients: 323 individuals with high or very high cardiovascular risk levels by SCORE scale and 281 participants with coronary heart disease (CHD). The patients were divided into two groups, according to their agreement to participate in the automatic telephone reminder survey (“Survey” and “Refusal”). All participants were also given a self-control diary. At baseline and one year later, the patients underwent general clinical examination, office blood pressure (BP) measurement, blood biochemistry assessment, and the measurement of therapy compliance (Morisky-Green test), anxiety, and depression levels (HADS scale). Results. The reduction in diastolic BP levels was significantly larger in the Survey group (p=0,04). This group also demonstrated a significantly larger decrease in the levels of total cholesterol (TCH) (p=0,0003) and low-density lipoprotein cholesterol (LDL-CH) (p=0,001), as well as a significantly larger increase in the levels of high-density lipoprotein cholesterol (HDL-CH) (p=0,04). The therapy compliance, assessed by the Morisky-Green test, improved in both groups; however, among CHD patients, a significant improvement was observed only in the Survey group (p<0,00001). The percentage of patients submitting their self-control diaries was higher for the Survey group (p<0,0001). Conclusion. The automatic telephone reminder method provides an opportunity to significantly increase the therapy compliance.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
E Fountas ◽  
O Diakoumakou ◽  
V Kolovou ◽  
S Stratakis ◽  
E Zacharis ◽  
...  

Abstract Introduction The majority of patients with homozygous familial hypercholesterolemia (HoFH) phenotype are treated additionally to lipid lowering (LL) drugs (statin + ezetimibe ± colesevelam) with lipoprotein apheresis (LA) sessions. The aim of this study was to evaluate the effect of microsomal triglyceride transfer protein inhibitor (lomitapide) in HoFH patients. Patients and methods In 12 HoFH patients treated with LL drugs ± biweekly LA sessions (9 patients) the 5–40 mg daily of lomitapide was added. Lipid profile [total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), triglycerides (TG) and high density lipoprotein cholesterol (HDL-C)] before (LL drugs ± LA) and after lomitapide treatment were evaluated. Results The follow-up period of lomitapide treatment for 12 patients was 3–24 months (13.8±7.9). The median baseline LDL-C levels was 1000 mg/dL (339–1150). During LL drug therapy, patients showed a median LDL-C level of 383.5 mg/dL (Range: 214–866 mg/dL) and with LL drugs + Time-averaged levels (CAVG) the median was 288.1 mg/dL (Range: 183.69–716.65 mg/dL). The addition of lomitapide at the average dosage of 21.4 mg/day lowered LDL-C levels by 56.8% comparing to LL drugs alone therapy [mean reduction 262.12, 95% CI (105.53, 418.71), p=0.005] and by 54% [mean reduction −182.89, 95% CI (−342.35, −23.43), p=0.031] comparing to LL drugs + LA (CAVG). The CAVG of LDL-C in LL drugs + LA patients compared with LL drugs + lomitapide was 54% in favour of lomitapide (p=0.031). After lomitapide administration to LL drugs + LA treatment, 78% patients discontinued LA and 2 patients reduced their LA frequency by 50%. During follow-up, 2 patients (16.6%) reported side effects (transient diarrhea, 1 patient had liver transaminase >5× ULN and had to decrease dose of lomitapide). Two patients stopped lomitapide due to diet and alcohol restrictions. Median and ranges of lipid and lipoprotein values before any intervention, after LL drugs, LL drugs plus LA, LL drugs plus LA (CAVG) and LL drugs plus lomitapide Total Cholesterol LDL-C HDL-C Triglycerides Before any intervention 1000 (339–1150) 900 (245–1070) 34.5 (25–50) 125 (87–314) After LL drugs 434 (278–915) 383.5 (214–866) 36 (27–51) 113 (62–198) LL drugs + LA (CAVG) 336.13 (248.57–784.16) 288.07 (183.69–716.65) 42.81 (25.84–46.68) 105.09 (55.79–166.68) LL drugs + Lomitapide 228.5 (118–554) 173.5 (74–515) 37.5 (29–50) 83.5 (23–316) LDL graph Conclusions Treatment with lomitapide in HoFH patients has beneficial effect with constant decrease of LDL-C by 57% compared with classical LL therapy and by 54% compared with classical LL therapy and CAVG and seems to be with good safety profile. Although, in some cases the hybrid (all availably drug treatment and LA) therapy may be needed.


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