scholarly journals Parameters of Chronic Kidney Disease to Identify Outpatients at Increased Risk for COVID-19 Mortality: A Cohort Study of UK Biobank Participants

2021 ◽  
Vol 14 (1) ◽  
pp. 26-28
Author(s):  
Anusua Trivedi ◽  
W. Conrad Liles ◽  
Nicholas Becker ◽  
Catherine Egan ◽  
Juan Lavista Ferres ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Uk Biobank ◽  
Increased Risk

scholarly journals Dietary Micronutrients and Risk of Chronic Kidney Disease: A Cohort Study with 12 Year Follow-Up

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1517
Author(s):  
Juyeon Lee ◽  
Kook-Hwan Oh ◽  
Sue-Kyung Park
Keyword(s):  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Epidemiologic Study ◽  
Population Based ◽  
Dietary Guidelines ◽  
Dietary Intakes ◽  
Increased Risk ◽  
Ckd Stage

We investigated the association between dietary micronutrient intakes and the risk of chronic kidney disease (CKD) in the Ansan-Ansung study of the Korean Genome and Epidemiologic Study (KoGES), a population-based prospective cohort study. Of 9079 cohort participants with a baseline estimate glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m2 and a urine albumin to creatinine ratio (UACR) <300 mg/g and who were not diagnosed with CKD, we ascertained 1392 new CKD cases over 12 year follow-up periods. The risk of CKD according to dietary micronutrient intakes was presented using hazard ratios (HRs) and 95% confidence intervals (95% CIs) in a full multivariable Cox proportional hazard models, adjusted for multiple micronutrients and important clinico-epidemiological risk factors. Low dietary intakes of phosphorus (<400 mg/day), vitamin B2 (<0.7 mg/day) and high dietary intake of vitamin B6 (≥1.6 mg/day) and C (≥100 mg/day) were associated with an increased risk of CKD stage 3B and over, compared with the intake at recommended levels (HR = 6.78 [95%CI = 2.18–21.11]; HR = 2.90 [95%CI = 1.01–8.33]; HR = 2.71 [95%CI = 1.26–5.81]; HR = 1.83 [95%CI = 1.00–3.33], respectively). In the restricted population, excluding new CKD cases defined within 2 years, an additional association with low folate levels (<100 µg/day) in higher risk of CKD stage 3B and over was observed (HR = 6.72 [95%CI = 1.40–32.16]). None of the micronutrients showed a significant association with the risk of developing CKD stage 3A. Adequate intake of micronutrients may lower the risk of CKD stage 3B and over, suggesting that dietary guidelines are needed in the general population to prevent CKD.

scholarly journals Association of chronic kidney disease with mortality risk in patients with lung cancer: a nationwide Taiwan population-based cohort study

BMJ Open ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. e019661 ◽  
Author(s):  
Yu-Feng Wei ◽  
Jung-Yueh Chen ◽  
Ho-Shen Lee ◽  
Jiun-Ting Wu ◽  
Chi-Kuei Hsu ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Renal Disease ◽  
Mortality Risk ◽  
Population Based ◽  
Research Database ◽  
Cox Regression Analysis ◽  
Increased Risk

ObjectiveOur population-based research aimed to clarify the association between chronic kidney disease (CKD) and mortality risk in patients with lung cancer.DesignRetrospective cohort studySettingNational health insurance research database in TaiwanParticipantsAll (n=1 37 077) Taiwanese residents who were diagnosed with lung cancer between 1997 and 2012 were identified. Eligible patients with baseline CKD (n=2269) were matched with controls (1:4, n=9076) without renal disease according to age, sex and the index day of lung cancer diagnosis.MethodsThe cumulative incidence of death was calculated by the Kaplan-Meier method, and the risk determinants were explored by the Cox proportional hazards model.ResultsMortality occurred in 1866 (82.24%) and 7135 (78.61%) patients with and without CKD, respectively (P=0.0001). The cumulative incidences of mortality in patients with and without chronic renal disease were 72.8% vs 61.6% at 1 year, 82.0% vs 76.6% at 2 years and 88.9% vs 87.2% at 5 years, respectively. After adjusting for multiple confounding factors including age and comorbidities, Cox regression analysis revealed that CKD was associated with an increased risk of mortality (adjusted HR 1.38; 95% CI 1.29 to 1.47). Stratified analysis further showed that the association was consistent across patient subgroups.ConclusionComorbidity associated with CKD is a risk factor for mortality in patients with lung cancer.

scholarly journals The first consecutive 5000 patients with Coronavirus Disease 2019 from Qatar; a nation-wide cohort study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ali S. Omrani ◽  
Muna A. Almaslamani ◽  
Joanne Daghfal ◽  
Rand A. Alattar ◽  
Mohamed Elgara ◽  
...  
Keyword(s):  
Risk Factors ◽  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Older Age ◽  
Icu Admission ◽  
Increased Risk ◽  
All Cause Mortality ◽  
Male Sex

Abstract Background There are limited data on Coronavirus Disease 2019 (COVID-19) outcomes at a national level, and none after 60 days of follow up. The aim of this study was to describe national, 60-day all-cause mortality associated with COVID-19, and to identify risk factors associated with admission to an intensive care unit (ICU). Methods This was a retrospective cohort study including the first consecutive 5000 patients with COVID-19 in Qatar who completed 60 days of follow up by June 17, 2020. The primary outcome was all-cause mortality at 60 days after COVID-19 diagnosis. In addition, we explored risk factors for admission to ICU. Results Included patients were diagnosed with COVID-19 between February 28 and April 17, 2020. The majority (4436, 88.7%) were males and the median age was 35 years [interquartile range (IQR) 28–43]. By 60 days after COVID-19 diagnosis, 14 patients (0.28%) had died, 10 (0.2%) were still in hospital, and two (0.04%) were still in ICU. Fatal COVID-19 cases had a median age of 59.5 years (IQR 55.8–68), and were mostly males (13, 92.9%). All included pregnant women (26, 0.5%), children (131, 2.6%), and healthcare workers (135, 2.7%) were alive and not hospitalized at the end of follow up. A total of 1424 patients (28.5%) required hospitalization, out of which 108 (7.6%) were admitted to ICU. Most frequent co-morbidities in hospitalized adults were diabetes (23.2%), and hypertension (20.7%). Multivariable logistic regression showed that older age [adjusted odds ratio (aOR) 1.041, 95% confidence interval (CI) 1.022–1.061 per year increase; P < 0.001], male sex (aOR 4.375, 95% CI 1.964–9.744; P < 0.001), diabetes (aOR 1.698, 95% CI 1.050–2.746; P 0.031), chronic kidney disease (aOR 3.590, 95% CI 1.596–8.079, P 0.002), and higher BMI (aOR 1.067, 95% CI 1.027–1.108 per unit increase; P 0.001), were all independently associated with increased risk of ICU admission. Conclusions In a relatively younger national cohort with a low co-morbidity burden, COVID-19 was associated with low all-cause mortality. Independent risk factors for ICU admission included older age, male sex, higher BMI, and co-existing diabetes or chronic kidney disease.

scholarly journals Cardiovascular, thromboembolic and renal outcomes in IgA vasculitis (Henoch-Schönlein purpura): a retrospective cohort study using routinely collected primary care data

2018 ◽  
Vol 78 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Alexander Tracy ◽  
Anuradhaa Subramanian ◽  
Nicola J Adderley ◽  
Paul Cockwell ◽  
Charles Ferro ◽  
...  
Keyword(s):  
Primary Care ◽  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Venous Thromboembolism ◽  
Kidney Disease ◽  
Iga Vasculitis ◽  
Adult Onset ◽  
Childhood Onset ◽  
Increased Risk ◽  
Schonlein Purpura

BackgroundIgA vasculitis (IgAV, Henoch-Schönlein purpura) is a small-vessel vasculitis most common in children but also occurring in adults. Case series have suggested that IgAV may be associated with cardiovascular disease and venous thromboembolism, but this has not been evaluated in population-based studies. Renal disease and hypertension are possible complications of the disease with unknown incidence.MethodsUsing a large UK primary care database, we conducted an open retrospective matched cohort study of cardiovascular, venous thrombotic and renal outcomes in adult-onset and childhood-onset IgAV. Control participants were selected at a 2:1 ratio, matched for age and sex. Adjusted HRs (aHRs) were calculated using Cox proportional hazards models.Results2828 patients with adult-onset IgAV and 10 405 patients with childhood-onset IgAV were compared with age-matched and sex-matched controls. There was significantly increased risk of hypertension (adult-onset aHR 1.42, 95% CI 1.19 to 1.70, p < 0.001; childhood-onset aHR 1.52, 95% CI 1.22 to 1.89, p < 0.001) and stage G3–G5 chronic kidney disease (adult-onset aHR 1.54, 95% CI 1.23 to 1.93, p < 0.001; childhood-onset aHR 1.89, 95% CI 1.16 to 3.07, p=0.010). There was no evidence of association with ischaemic heart disease, cerebrovascular disease or venous thromboembolism. All-cause mortality was increased in the adult-onset IgAV cohort compared with controls (aHR 1.27, 95% CI 1.07 to 1.50, p=0.006).ConclusionsPatients with IgAV are at increased risk of hypertension and chronic kidney disease (CKD) compared with individuals without IgAV; analysis restricted to adult-onset IgAV patients showed increased mortality. Appropriate surveillance and risk factor modification could improve long-term outcomes in these patients.

Smoking, Smoking Cessation, and Progression of Chronic Kidney Disease: Results From KNOW-CKD Study

2020 ◽  
Author(s):  
Sangmi Lee ◽  
Shinchan Kang ◽  
Young Su Joo ◽  
Changhyun Lee ◽  
Ki Heon Nam ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Smoking Cessation ◽  
Cohort Study ◽  
Kidney Disease ◽  
Kidney Function ◽  
Primary Outcome ◽  
Incidence Rates ◽  
Ckd Progression ◽  
Increased Risk ◽  
Never Smokers

Abstract Introduction In patients with chronic kidney disease (CKD), studies investigating the association between smoking and deterioration of kidney function are scarce. Aims and Methods We analyzed data for 1,951 patients with an estimated glomerular filtration rate (eGFR) ≥15 mL/min/1.73 m2 enrolled in the KoreaN cohort study for Outcome in patients With Chronic Kidney Disease (KNOW-CKD) from 2011 to 2016. Patients were categorized by smoking load. Primary outcome was a composite of a ≥50% reduction in eGFR, initiation of dialysis, or kidney transplantation. Results There were 967 never-smokers and 369, 276, and 339 smokers who smoked &lt;15, 15 to 29, ≥30 pack-years, respectively. During a mean follow-up of 3.0 years, the incidence rates (95% confidence interval [CI]) of the primary outcome were 54.3 (46.4–63.5), 46.9 (35.9–61.4), 69.2 (52.9–90.6), and 76.3 (60.7–96.0) events per 1,000 person-yr in never-, &lt;15, 15 to 29, and ≥30 pack-year smokers. In cause-specific hazard model after adjustment of confounding factors, smokers were associated with 1.09 (0.73–1.63), 1.48 (1.00–2.18), and 1.94 (1.35–2.77) fold increased risk (95% CI) of primary outcome in &lt;15, 15–29, and ≥30 pack-year smokers compared with never-smokers. The association of longer smoking duration with higher risk of CKD progression was evident particularly in patients with eGFR &lt; 45 mL/min/1.73 m2 and proteinuria ≥ 1.0 g/g. In contrast, the risk of adverse kidney outcome decreased with longer smoking-free periods among former-smokers. Conclusions These findings suggest potentially harmful effects of the degree of exposure to smoking on the progression of CKD. Implications Among patients with CKD, there has been lack of studies on the association between smoking and CKD progression and studies to date have yielded conflicting results. In this prospective cohort study involving Korean CKD patients, smoking was associated with significantly higher risk of worsening kidney function. Furthermore, the risk of adverse kidney outcome was incrementally higher as smoking pack-years were higher. As the duration of smoking cessation increased, the hazard ratios for adverse kidney outcome were attenuated, suggesting that quitting smoking may be a modifiable factor to delay CKD progression.

scholarly journals A cohort study of the relationship between anaemia, mean corpuscular volume and mortality among a CKD population in South Africa

2021 ◽  
Vol 21 (4) ◽  
pp. 1764-75
Author(s):  
Aishatu Nalado ◽  
Bala Waziri ◽  
Gbenga Olorunfemi ◽  
Johnny Mahlangu ◽  
Graham Paget ◽  
...  
Keyword(s):  
South Africa ◽  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Clinical Information ◽  
Tertiary Hospital ◽  
Severe Anaemia ◽  
Factors Affecting ◽  
Risk Of Death ◽  
Increased Risk

Background: The burden of chronic kidney disease is increasing globally and prompt identification, coupled with improved management of CKD patients have increased the population of pre-dialysis patients. We, therefore, aimed to evaluate the predictors of survival among pre-dialysis CKD patients in South Africa. Methods: We conducted a cohort study of 256 consecutive consenting Black non-dialysis requiring CKD patients attending the renal outpatient clinic of a tertiary Hospital in South Africa from 1st June 2016 to 1st December 2016. Socio-demographic and clinical information of the participants were obtained. Descriptive statistics, Kaplan-Meier curves and Cox proportional hazard regression analyses were conducted to evaluate factors affecting the survival of the participants. Results: The mean age of the participants was 52.8±14.3 years and 48.0% were females, 52% were males. The death rate increased with worsening haemoglobin level from 0.96 among patients with mild anaemia to 4.29 per 100-person years among patients with severe anaemia. Anaemic patients with GFR < 30mls/min had significantly increased risk of death (HR 11.51, 95% CI 1.62–78.32, P < 0.001). Conclusion: Mortality in pre-dialysis CKD patients was associated with anaemia and hyperphosphatemia. Clinical interventions targeted at preventing these conditions may improve outcomes among this group of CKD patients. Keywords: Chronic kidney disease; mortality anaemia; outcomes, survival.

scholarly journals The risk of chronic kidney disease in relation to anthropometric measures of obesity: A Swedish cohort study

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Ensieh Memarian ◽  
Peter M. Nilsson ◽  
Isac Zia ◽  
Anders Christensson ◽  
Gunnar Engström
Keyword(s):  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Waist Circumference ◽  
Kidney Disease ◽  
Prospective Study ◽  
Cox Proportional Hazards ◽  
Large Prospective Study ◽  
Anthropometric Measures ◽  
Increased Risk ◽  
Incidence Of Ckd

Abstract Background It has been shown that individuals with obesity have a higher risk for chronic kidney disease (CKD). However, it is unclear which measure of obesity is most useful for prediction of CKD in the general population. The aim of this large prospective study was to explore the association between several anthropometric measures of obesity, i. e., body mass index (BMI), waist circumference (WC), waist circumference to height ratio (WHtR), waist-to-hip ratio (WHR), percentage of body fat (BF%), weight, height and incidence of hospitalizations due to CKD, in a population-based cohort study. Methods The ‘Malmö Diet and Cancer Study (MDCS)’ cohort in Sweden was examined during 1991 to 1996. A total of 28,449 subjects underwent measurement of anthropometric measures and blood pressure and filled out a questionnaire. Incidence of in- and outpatient hospital visits for CKD was monitored from the baseline examination over a mean follow-up of 18 years. Cox proportional hazards regression was used to explore the association between anthropometric measures and incidence of CKD, with adjustments for risk factors. Results The final study population included 26,723 subjects, 45-73 years old at baseline. Higher values of BMI, WC, WHR, WHtR and weight were associated with an increased risk of developing CKD in both men and women. Only in women, higher values of BF% was associated with higher risk of CKD. Comparing the 4th vs 1st quartile of the obesity measure, the highest hazard ratio (HR) for CKD in men was observed for BMI, HR 1.51 (95% CI: 1.18-1.94) and weight (HR 1.52 (95% CI: 1.19-1.94). For women the highest HR for CKD was observed for BF%, HR 2.01 (95% CI: 1.45-2.78). Conclusions In this large prospective study, all anthropometric measures of obesity were associated with a substantially increased incidence of CKD, except for BF% in men. Some measures were slightly more predictive for the risk of CKD than others such as BMI and weight in men and BF% in women. In clinical daily practice use of all anthropometric measures of obesity might be equally useful to assess the risk of developing CKD. This study supports the strong evidence for an association between obesity and CKD.

scholarly journals Association between serum phosphorus levels and adverse outcomes in chronic kidney disease: an observational cohort study

2021 ◽  
Author(s):  
Akira Oda ◽  
Kenichi Tanaka ◽  
Hirotaka Saito ◽  
Tsuyoshi Iwasaki ◽  
Shuhei Watanabe ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Cohort Study ◽  
Kidney Disease ◽  
Cardiovascular Events ◽  
Cox Regression ◽  
Hazard Ratio ◽  
Adverse Outcomes ◽  
Serum Phosphorus ◽  
Increased Risk ◽  
Phosphorus Levels

Abstract Background Although an association between serum phosphorus levels and poor prognosis has been noted in dialysis patients, these associations have been insufficiently reported in non-dialysis dependent chronic kidney disease (NDD-CKD) patients. This study attempted to determine the association between serum phosphorus levels and adverse outcomes in Japanese NDD-CKD patients. Methods We investigated the relationships between serum phosphorus levels and adverse outcomes such as kidney events, cardiovascular events, and all-cause death in Japanese NDD-CKD patients, using the longitudinal data of the Fukushima CKD Cohort Study. The study evaluated 822 patients with NDD-CKD enrolled between June 2012 and July 2014. A kidney event was defined as a combination of doubling of the baseline serum creatinine or end-stage renal disease. Cox regression was performed to analyze the relationships of the quartile of the serum phosphorus with kidney events, cardiovascular events, and all-cause death. Results Over a median follow-up period of 2.8 years, 46 patients died, there were 50 cardiovascular events, and 102 kidney events occurred. Increased risk of kidney events was observed in patients with higher serum phosphorus, with the lowest risk shown to be a second quartile of serum phosphorus level of 2.9–3.2 mg/dL. Multivariable Cox regression analysis showed an increased risk of kidney events for the highest quartile of the serum phosphorus levels (≥ 3.7 mg/dL) versus the second quartile (2.9–3.2 mg/dL, hazard ratio, 3.62; 95% confidence interval, 1.65–7.94; P = 0.001). A 1 mg/dL increase of the serum phosphorus was associated with an adjusted hazard ratio of 1.66 (95% CI; 1.24–2.20) for the kidney events. There were no significant associations between the serum phosphorus levels at baseline and the risk of cardiovascular events and all-cause death. Conclusions Serum phosphorus levels were associated with an increased risk of CKD progression in Japanese NDD-CKD patients.

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