Parathyroid hormone, vitamin D, renal dysfunction, and cardiovascular disease: Dependent or independent risk factors?

2011 ◽  
Vol 162 (2) ◽  
pp. 331-339.e2 ◽  
Author(s):  
Jeffrey L. Anderson ◽  
Ryan C. Vanwoerkom ◽  
Benjamin D. Horne ◽  
Tami L. Bair ◽  
Heidi T. May ◽  
...  
2021 ◽  
Vol 36 (3) ◽  
pp. 299-309 ◽  
Author(s):  
Joshua Elliott ◽  
Barbara Bodinier ◽  
Matthew Whitaker ◽  
Cyrille Delpierre ◽  
Roel Vermeulen ◽  
...  

AbstractMost studies of severe/fatal COVID-19 risk have used routine/hospitalisation data without detailed pre-morbid characterisation. Using the community-based UK Biobank cohort, we investigate risk factors for COVID-19 mortality in comparison with non-COVID-19 mortality. We investigated demographic, social (education, income, housing, employment), lifestyle (smoking, drinking, body mass index), biological (lipids, cystatin C, vitamin D), medical (comorbidities, medications) and environmental (air pollution) data from UK Biobank (N = 473,550) in relation to 459 COVID-19 and 2626 non-COVID-19 deaths to 21 September 2020. We used univariate, multivariable and penalised regression models. Age (OR = 2.76 [2.18–3.49] per S.D. [8.1 years], p = 2.6 × 10–17), male sex (OR = 1.47 [1.26–1.73], p = 1.3 × 10–6) and Black versus White ethnicity (OR = 1.21 [1.12–1.29], p = 3.0 × 10–7) were independently associated with and jointly explanatory of (area under receiver operating characteristic curve, AUC = 0.79) increased risk of COVID-19 mortality. In multivariable regression, alongside demographic covariates, being a healthcare worker, current smoker, having cardiovascular disease, hypertension, diabetes, autoimmune disease, and oral steroid use at enrolment were independently associated with COVID-19 mortality. Penalised regression models selected income, cardiovascular disease, hypertension, diabetes, cystatin C, and oral steroid use as jointly contributing to COVID-19 mortality risk; Black ethnicity, hypertension and oral steroid use contributed to COVID-19 but not non-COVID-19 mortality. Age, male sex and Black ethnicity, as well as comorbidities and oral steroid use at enrolment were associated with increased risk of COVID-19 death. Our results suggest that previously reported associations of COVID-19 mortality with body mass index, low vitamin D, air pollutants, renin–angiotensin–aldosterone system inhibitors may be explained by the aforementioned factors.


2018 ◽  
Vol 12 (4) ◽  
pp. 550-558 ◽  
Author(s):  
Nish Arulkumaran ◽  
Arunraj Navaratnarajah ◽  
Camilla Pillay ◽  
Wendy Brown ◽  
Neill Duncan ◽  
...  

AbstractBackgroundPatients who require acute initiation of dialysis have higher mortality rates when compared with patients with planned starts. Our primary objective was to explore the reasons and risk factors for acute initiation of renal replacement therapy (RRT) among patients with end-stage kidney disease (ESKD). Our secondary objective was to determine the difference in glomerular filtration rate (GFR) change in the year preceding RRT between elective and acute dialysis starts.MethodsWe conducted a single-centre retrospective observational study. ESKD patients either started dialysis electively (planned starters) or acutely and were known to renal services for >90 (unplanned starters) or <90 days (urgent starters).ResultsIn all, 825 consecutive patients initiated dialysis between January 2013 and December 2015. Of these, 410 (49.7%) patients had a planned start. A total of 415 (50.3%) patients had an acute start on dialysis: 244 (58.8%) unplanned and 171 (41.2%) urgent. The reasons for acute dialysis initiation included acute illness (58%) and unexplained decline to ESKD (33%). Cardiovascular disease [n = 30 (22%)] and sepsis [n = 65 (48%)] accounted for the majority of acute systemic illness. Age and premorbid cardiovascular disease were independent risk factors for acute systemic illness among unplanned starts, whereas autoimmune disease accounted for the majority of urgent starts. The rate of decline in GFR was greater in the month preceding RRT among acute dialysis starters compared with planned starters (P < 0.001).ConclusionsCardiovascular disease and advancing age were independent risk factors for emergency dialysis initiation among patients known to renal services for >3 months. The rapid and often unpredictable loss of renal function in the context of acute systemic illness poses a challenge to averting emergency dialysis start.


2020 ◽  
Author(s):  
Wenwen Yang ◽  
Shuxia Guo ◽  
Haixia Wang ◽  
Yu Li ◽  
Xianghui Zhang ◽  
...  

Abstract Background: Metabolic syndrome (MS) could promote the development of cardiovascular disease(CVD). The aim of this study was to examine the association of MS and its components with CVD among Kazakhs in Xinjiang. Methods: According to the geographical distribution of the minority populations in Xinjiang, we selected the representative prefecture (Yili). A total of 2,644 participants completed the baseline survey between April 2010 and December 2012. The follow-up survey was conducted from April 2016 to December 2016. Only 2,286 out of 2,644 participants were followed-up on, with a follow-up rate of 86.46%. Cox regression was used to evaluate the association of each component and the number of combinations of MS components on the development of CVD. Results: Multivariate Cox regression analysis showed that blood pressure (BP), waist circumference (WC), and triglycerides (TG) were independently associated with CVD. Participants with 1–5 MS components had an increased hazard ratio for developing CVD, from 1.82 to 8.59 (trend P<0.001), compared with those without any MS components. This trend persisted after adjusting for other general risk factors. The risk of developing CVD increased when TG and WC coexisted, or when TG/WC and BP coexisted. However, no significant interactions were found between BP , WC , and TG. Conclusions: BP , WC, and TG were independent risk factors for CVD in Kazakhs. In clinical practice, a more informative assessment may be obtained by taking into account the number of MS components.


2011 ◽  
Vol 77 (5) ◽  
pp. 621-626 ◽  
Author(s):  
Bernardino C. Branco ◽  
Kenji Inaba ◽  
Marko Bukur ◽  
Peep Talving ◽  
Matthew Oliver ◽  
...  

The purpose of this study was to examine independent risk factors, and in particular the impact of alcohol on the development of delirium, in a cohort of trauma patients screened for ethanol ingestion on admission to hospital. The National Trauma Databank (v. 7.0) was used to identify all patients 18 years or older screened for ethanol on admission. Patients who developed delirium were compared with those who did not. Stepwise logistic regression analysis was used to identify independent risk factors for the development of delirium. A total of 504,839 patients with admission ethanol levels were identified. Of those, 2,909 (0.6%) developed delirium. Patients developing delirium were significantly older, more frequently male, and more likely to sustain thermal injuries and falls. Patients developing delirium had more comorbidities including chronic ethanol use (19.1% vs 4.5%, P < 0.001) and cardiovascular disease (21.5% vs 12.2%, P < 0.001). On admission, patients developing delirium were more likely to be intoxicated with ethanol (55.4% vs 26.5%, P < 0.001) and were more likely to be uninsured (17.8% vs 0.9%, P < 0.001). A stepwise logistic regression model identified lack of insurance, positive ethanol on admission, chronic ethanol use, Intensive Care Unit admission, age ≥ 55 years, burns, Medicare insurance, falls, and history of cardiovascular disease as independent risk factors for the development of delirium. The incidence of delirium in this trauma patient cohort was 0.6 per cent. The above risk factors were independently associated with the development of delirium. This data may be helpful in designing interventions to prevent delirium.


2019 ◽  
Vol 48 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Ali Veysel Kara ◽  
Mehmet Naci Aldemir ◽  
Yasin Emrah Soylu ◽  
Yusuf Kemal Arslan

Objectives: Aim of the study was investigating the effect of serum vitamin D levels on health-related quality of life in hemodialysis patients. Method: One-hundred and twenty-three maintenance hemodialysis patients were enrolled in this cross-sectional study. Patients divided into 2 groups according to serum vitamin D levels. A serum 25-hydroxyvitamin D (25[OH] D) level of < 20 ng/mL was identified as vitamin D deficiency (n = 78), and a serum level of ≥20 ng/mL was identified as normal (n = 45). Kidney Disease Quality of Life 36 (KDQOL-36) survey was used for quality of life measurement. Scores of the all of 5 subscales of KDQOL-36 were calculated. Multiple linear regression analyses were used to define independent risk factors affecting the survey. Results: Mean age of patients was 62 and 56% of patients were male. Mean 25(OH) D levels were 11.86 and 29.57 ng/mL, respectively, in 2 groups. There was statistically significant difference between age and Kt/V levels between 2 groups (p = 0.008 and p = 0.041). Age and gender were found as significant predictors of vitamin D deficiency (p = 0.026 and p = 0.021). In symptom and problem list subscale, gender and comorbidity were detected as independent risk factors (p = 0.050 and p = 0.032). Comorbidity was the only independent risk factor for effect of kidney disease subscale (p < 0.001). Independent risk factors associated with burden of kidney disease subscale were comorbidity and serum 25 (OH) D levels (p = 0.003 and p = 0.023). Serum 25(OH) D, gender, and comorbidity were independently associated with physical component summary (PCS) subscale (p < 0.001, p = 0.008, and p = 0.011). The only independently associated factor with mental component summary (MCS) was serum 25(OH) D (p < 0.001). Conclusion: We first showed the relationship between serum vitamin D levels and KDQOL-36 in hemodialysis patients. Lower serum vitamin D levels were negatively associated with burden of kidney disease, PCS, and MCS subscales.


2013 ◽  
Vol 9 (11) ◽  
pp. 626-626
Author(s):  
Sujana S. Gunta ◽  
Ravi I. Thadhani ◽  
Robert H. Mak

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