scholarly journals Risk of pneumothorax in pneumoconiosis patients in Taiwan: a retrospective cohort study

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e054098
Author(s):  
Jo-Hui Pan ◽  
Chih-Hung Cheng ◽  
Chao-Ling Wang ◽  
Chia-Yen Dai ◽  
Chau-Chyun Sheu ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Cumulative Incidence ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Secondary Outcome ◽  
Matched Cohort ◽  
Cox Regression Analysis ◽  
Control Subjects

ObjectivesThis study was conducted to explore the association between pneumoconiosis and pneumothorax.DesignRetrospective cohort study.SettingNationwide population-based study using the Taiwan National Health Insurance Database.ParticipantsA total of 2333 pneumoconiosis patients were identified (1935 patients for propensity score (PS)-matched cohort) and matched to 23 330 control subjects by age and sex (7740 subjects for PS-matched cohort).Primary and secondary outcome measuresThe incidence and the cumulative incidence of pneumothorax.ResultsBoth incidence and the cumulative incidence of pneumothorax were significantly higher in the pneumoconiosis patients as compared with the control subjects (p<0.0001). For multivariable Cox regression analysis adjusted for age, sex, residency, income level and other comorbidities, patients with pneumoconiosis exhibited a significantly higher risk of pneumothorax than those without pneumoconiosis (HR 3.05, 95% CI 2.18 to 4.28, p<0.0001). The male sex, heart disease, peripheral vascular disease, chronic pulmonary disease and connective tissue disease were risk factors for developing pneumothorax in pneumoconiosis patients.ConclusionsOur study revealed a higher risk of pneumothorax in pneumoconiosis patients and suggested potential risk factors in these patients. Clinicians should be aware about the risk of pneumothorax in pneumoconiosis patients.

scholarly journals Staphylococcus Aureus Bacteriuria as a Predictor of In-Hospital Mortality in Patients with Staphylococcus Aureus Bacteremia. Results of a Retrospective Cohort Study

2020 ◽  
Vol 9 (2) ◽  
pp. 508 ◽  
Author(s):  
Tobias Siegfried Kramer ◽  
Beate Schlosser ◽  
Désirée Gruhl ◽  
Michael Behnke ◽  
Frank Schwab ◽  
...  
Keyword(s):  
Risk Factors ◽  
Staphylococcus Aureus ◽  
Cohort Study ◽  
Hospital Mortality ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
University Hospital ◽  
Hospital Death ◽  
Cox Regression Analysis

Staphylococcus aureus bloodstream infection (SA-BSI) is an infection with increasing morbidity and mortality. Concomitant Staphylococcus aureus bacteriuria (SABU) frequently occurs in patients with SA-BSI. It is considered as either a sign of exacerbation of SA-BSI or a primary source in terms of urosepsis. The clinical implications are still under investigation. In this study, we investigated the role of SABU in patients with SA-BSI and its effect on the patients’ mortality. We performed a retrospective cohort study that included all patients in our university hospital (Charité Universitätsmedizin Berlin) between 1 January 2014 and 31 March 2017. We included all patients with positive blood cultures for Staphylococcus aureus who had a urine culture 48 h before or after the first positive blood culture. We identified cases while using the microbiology database and collected additional demographic and clinical parameters, retrospectively, from patient files and charts. We conducted univariate analyses and multivariable Cox regression analysis to evaluate the risk factors for in-hospital mortality. 202 patients met the eligibility criteria. Overall, 55 patients (27.5%) died during their hospital stay. Cox regression showed SABU (OR 2.3), Pitt Bacteremia Score (OR 1.2), as well as moderate to severe liver disease (OR 2.1) to be independent risk factors for in-hospital mortality. Our data indicates that SABU in patients with concurrent SA-BSI is a prognostic marker for in-hospital death. Further studies are needed for evaluating implications for therapeutic optimization.

scholarly journals Characteristics, outcomes and risk factors for mortality of 522 167 patients hospitalised with COVID-19 in Brazil: a retrospective cohort study

BMJ Open ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. e049089
Author(s):  
Marcia C Castro ◽  
Susie Gurzenda ◽  
Eduardo Marques Macário ◽  
Giovanny Vinícius A França
Keyword(s):  
Risk Factors ◽  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Proportional Hazards ◽  
Secondary Outcome ◽  
Hospital Death ◽  
Factors Associated ◽  
Icu Admission ◽  
Hospitalised Patients

ObjectiveTo provide a comprehensive description of demographic, clinical and radiographic characteristics; treatment and case outcomes; and risk factors associated with in-hospital death of patients hospitalised with COVID-19 in Brazil.DesignRetrospective cohort study of hospitalised patients diagnosed with COVID-19.SettingData from all hospitals across Brazil.Participants522 167 hospitalised patients in Brazil by 14 December 2020 with severe acute respiratory illness, and a confirmed diagnosis for COVID-19.Primary and secondary outcome measuresPrevalence of symptoms and comorbidities was compared by clinical outcomes and intensive care unit (ICU) admission status. Survival was assessed using Kaplan Meier survival estimates. Risk factors associated with in-hospital death were evaluated with multivariable Cox proportional hazards regression.ResultsOf the 522 167 patients included in this study, 56.7% were discharged, 0.002% died of other causes, 30.7% died of causes associated with COVID-19 and 10.2% remained hospitalised. The median age of patients was 61 years (IQR, 47–73), and of non-survivors 71 years (IQR, 60–80); 292 570 patients (56.0%) were men. At least one comorbidity was present in 64.5% of patients and in 76.8% of non-survivors. From illness onset, the median times to hospital and ICU admission were 6 days (IQR, 3–9) and 7 days (IQR, 3–10), respectively; 15 days (IQR, 9–24) to death and 15 days (IQR, 11–20) to hospital discharge. Risk factors for in-hospital death included old age, Black/Brown ethnoracial self-classification, ICU admission, being male, living in the North and Northeast regions and various comorbidities. Age had the highest HRs of 5.51 (95% CI: 4.91 to 6.18) for patients≥80, compared with those ≤20.ConclusionsCharacteristics of patients and risk factors for in-hospital mortality highlight inequities of COVID-19 outcomes in Brazil. As the pandemic continues to unfold, targeted policies that address those inequities are needed to mitigate the unequal burden of COVID-19.

scholarly journals Risk factors for mortality in hospitalized patients with COVID-19 from three hospitals in Peru: a retrospective cohort study

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 224
Author(s):  
Cristian Díaz-Vélez ◽  
Diego Urrunaga-Pastor ◽  
Anthony Romero-Cerdán ◽  
Eric Ricardo Peña-Sánchez ◽  
Jorge Luis Fernández Mogollon ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cohort Study ◽  
Hospital Mortality ◽  
Oxygen Saturation ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Vulnerable Groups ◽  
Vital Functions ◽  
The Mean

Background: Peru was one of the countries with the highest COVID-19 mortality worldwide during the first stage of the pandemic. It is then relevant to evaluate the risk factors for mortality in patients hospitalized for COVID-19 in three hospitals in Peru in 2020, from March to May, 2020.  Methods: We carried out a retrospective cohort study. The population consisted of patients from three Peruvian hospitals hospitalized for a diagnosis of COVID-19 during the March-May 2020 period. Independent sociodemographic variables, medical history, symptoms, vital functions, laboratory parameters and medical treatment were evaluated. In-hospital mortality was assessed as the outcome. We performed Cox regression models (crude and adjusted) to evaluate risk factors for in-hospital mortality. Hazard ratios (HR) with their respective 95% confidence intervals (95% CI) were calculated.  Results: We analyzed 493 hospitalized adults; 72.8% (n=359) were male and the mean age was 63.3 ± 14.4 years. COVID-19 symptoms appeared on average 7.9 ± 4.0 days before admission to the hospital, and the mean oxygen saturation on admission was 82.6 ± 13.8. While 67.6% (n=333) required intensive care unit admission, only 3.3% (n=16) were admitted to this unit, and 60.2% (n=297) of the sample died. In the adjusted regression analysis, it was found that being 60 years old or older (HR=1.57; 95% CI: 1.14-2.15), having two or more comorbidities (HR=1.53; 95% CI: 1.10-2.14), oxygen saturation between 85-80% (HR=2.52; 95% CI: 1.58-4.02), less than 80% (HR=4.59; 95% CI: 3.01-7.00), and being in the middle (HR=1.65; 95% CI: 1.15-2.39) and higher tertile (HR=2.18; 95% CI: 1.51-3.15) of the neutrophil-to-lymphocyte ratio, increased the risk of mortality.  Conclusions: The risk factors found agree with what has been described in the literature and allow the identification of vulnerable groups in whom monitoring and early identification of symptoms should be prioritized in order to reduce mortality.

scholarly journals 1024. First Episode Infective Endocarditis in Persons Who Inject Drugs (PWIDs); A Retrospective Cohort Study

2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S305-S305
Author(s):  
Laura Rodger ◽  
Dresden GlockerLauf ◽  
Esfandiar Shojaei ◽  
Adeel Sherazi ◽  
Brian Hallam ◽  
...  
Keyword(s):  
Cohort Study ◽  
Infective Endocarditis ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
First Episode ◽  
Persons Who Inject Drugs ◽  
Cox Regression Analysis ◽  
Lower Survival ◽  
Valvular Surgery

Abstract Background Persons who inject drugs (PWID) represent a distinct demographic of patients with infective endocarditis (IE). Many centers do not perform valvular surgery on these patients due to concerns about poor outcomes. Methods Retrospective cohort study comparing PWID patients to non-PWID patients presenting between February 2007 and March 2016 in London, Ontario, among adult (&gt;18) inpatients with first episode IE. Results In 370 first episode IE cases, 53.9% occurred in PWIDs. PWID patients were younger (35.4 SD 10.0 vs. 59.4 SD 14.9) (P &lt; 0.001), more likely to have right-sided infection [125/202 (62%), vs. 16/168 (9.5%) (P &lt; 0.001)], and more often due to S. aureus (156/202 (77.3%) vs. 54/168 (32.1%), P &lt; 0.001). Myocardial and aortic root abscesses were less common in PWIDs [17/202 (8.4%) vs. 50/168 (30%) (P &lt; 0.01)]. There was no difference in the frequency of noncardiac complications. In total, 36.5% of patients were treated surgically with PWID patients less likely to undergo surgery [39/202 (19.3%) vs. 98/168 (58%) P &lt; 0.001]. Cox regression analysis identified the protective effect of cardiac surgery with regards to survival in all patients, with a hazard ratio of 0.49 (95% CI 0.31–0.76, P &lt; 0.001), as well as among PWIDs (HR 0.39, 95% CI 0.17–0.87, P = 0.02). Among all patients, lower survival was associated with older age (HR 1.03, 95% CI 1.00–1.05, P &lt; 0.001), injection drug use (HR 2.72, 95% CI 1.52–4.88, P &lt; 0.001), left-sided infection (HR 3.48, 95% CI 2.01–6.03, P &lt; 0.001), and bilateral infection (HR 3.19, 95% CI 1.45–7.01, P = 0.004). The lower survival of left-sided infection (HR 4.01, 95% CI 1.97–8.18, P &lt; 0.001) or bilateral infection (HR 6.94, 95% CI 2.39–20.2,P &lt; 0.001) was re-demonstrated in PWIDs. Conclusion This study identifies important clinical differences between PWIDs and nondrug users with respect to valve involvement, causative organism, complications, and management strategies. Our results highlight the important role of surgical treatment in a carefully selected PWID patient population. Disclosures All authors: No reported disclosures.

scholarly journals Associated Factories and Time to Occurrence of Tuberculosis Among Children on HIV/AIDS Care in Assosa and Pawe General Hospitals North West Ethiopia: A Retrospective Cohort Study 2020

2020 ◽  
Author(s):  
Fassikaw kebede Bizuneh ◽  
Tadese Tollosa Daba ◽  
Belayneh Mengist Mitike ◽  
Tamrat sheawno Fikretsion ◽  
Belete Negese Negese
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Cox Model ◽  
Incidence Density ◽  
Human Immune Deficiency Virus ◽  
Cox Regression Analysis ◽  
Hiv Aids

Abstract Background: Tuberculosis (TB) incidence in peadtrics and children living with human immune-deficiency virus (HIV) is an emerging global concern. Although, the incidence of TB among adult HIV patients is exhaustively studied in Ethiopia, but among children on HIV/AIDS care is overlooked. Knowledge of the time when TB develops during successive follow up could be helpful for time relevant intervention strategies.Methods: health institution based retrospective cohort study conducted among 421 children on HIV/AIDS from 2009-2018. Time to develop TB was defined as time from enrollment for ART care until development of TB among children on ART. Proportional hazard assumption was checked for each variable and no variable was found with Schoenfeld test <0.05. Variables with P-value <0.25 at bivariate Cox regression analysis were entered into multivariable Cox model. Multivariable Cox regression model with 95%CI and AHR was used to identify significant predictor variables to develop TB at P< 0.05.Result: Totally 421 children were followed for a total of 662.5 Person Years of observation (PYO). The maximum and minimum follow up time on ART was 0.37 and 4.49 years, respectively. The median age of the children on ART at enrollment was 8 years (IQR=2-15). The Overall incidence density of tuberculosis in HIV infected children was 9.6/ 100 PYOs 95%CI (8.06-10.3). Tuberculosis occurrence among HIV infected children was significantly associated within TB history of contact AHR=3.7, 95%CI (2.89-7.2), not started on cotrimoxazole(CPT) AHR=2.4: 95%CI (1.84-4.74), incomplete vaccination AHR=2.4, 95%CI (1.32-4.5), sever stunting AHR =2.99:95%CI (1.2-7.81), having hemoglobin (Hgb) ≤10 mg/dl AHR = 4.02, 95%CI (2.01-8.1).Conclusion: More than 80% of TB incidences occurred during two years of follow up after ART started. So intensified screening of CPT& therapeutic feeding is highly recommended for all children.

scholarly journals Association of Rosacea With Cardiovascular Disease: A Retrospective Cohort Study

2021 ◽  
Author(s):  
Daein Choi ◽  
Sungjun Choi ◽  
Seulggie Choi ◽  
Sang Min Park ◽  
Hyun‐Sun Yoon
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Coronary Heart Disease ◽  
Cohort Study ◽  
Heart Disease ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Hazard Ratios ◽  
Increased Risk

Background There is emerging evidence that rosacea, a chronic cutaneous inflammatory disease, is associated with various systemic diseases. However, its association with cardiovascular disease (CVD) remains controversial. We aimed to investigate whether patients with rosacea are at increased risk of developing CVD. Methods and Results This retrospective cohort study from the Korean National Health Insurance Service‐Health Screening Cohort included patients with newly diagnosed rosacea (n=2681) and age‐, sex‐, and index year–matched reference populations without rosacea (n=26 810) between 2003 and 2014. The primary outcome was subsequent CVD including coronary heart disease and stroke. Multivariable Cox regression analyses were used to evaluate adjusted hazard ratios for subsequent CVD adjusted for major risk factors of CVD. Compared with the reference population (13 410 women; mean [SD] age, 57.7 [9.2] years), patients with rosacea (1341 women; mean [SD] age, 57.7 [9.2] years) displayed an increased risk for CVD (adjusted hazard ratios, 1.20; 95% CI, 1.03–1.40) and coronary heart disease (adjusted hazard ratios, 1.29; 95% CI, 1.05–1.60). The risk for stroke was not significantly elevated (adjusted hazard ratios, 1.12; 95% CI, 0.91–1.37). Conclusions This study suggests that patients with rosacea are more likely to develop subsequent CVD. Proper education for patients with rosacea to manage other modifiable risk factors of CVD along with rosacea is needed.

Association Between Serum Albumin and Mortality in Older People With Dysphagia: a Retrospective Cohort Study

2021 ◽  
Author(s):  
Gaigai Li ◽  
Tongtao Fan ◽  
Xun Zhou ◽  
Xunrui Hou ◽  
Yuheng Luo ◽  
...  
Keyword(s):  
Regression Analysis ◽  
Cohort Study ◽  
Older People ◽  
Serum Albumin ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Total Mortality ◽  
High Group ◽  
Cox Regression Analysis

Abstract Objective: To determine whether there is a link between serum albumin and mortality among participants in Japan older people.Methods: This is a single-center, retrospective cohort study analysis of 253 older patients with dysphagia from Japan, conducted from January 2014 and January 2017. The primary outcome was mortality. We performed Cox regression analysis to compare the mortality between the two groups (dividing by serum albumin=3g/dl).Results: A total of 253 patients were included in the analysis, of whom the number of serum albumin under 3g/dl was 93. The log-rank test showed a significantly longer mortality in the high group (serum albumin >=3g/dl) compared with the low group (median, 382 vs 176 days, P < 0.0001). Cox regression analysis showed that unadjusted HR for the high group relative to the low group was 0.40 (95% CI: 0.29–0.57; P <0.001). After adjustment 3 models in multivariable analyses, serum albumn was significantly associated with mortality. The adjusted HRs (95% CI) for total mortality rates were 0.46 (0.33~0.65) , 0.66 (0.44~0.99) and 0.64 (0.42~0.97), from model 2 to model 4.Conclusion: There is negative association between serum albumin and mortality in older people with dysphagia.

scholarly journals AST/ALT ratio as a predictor of mortality and future exacerbations of PM/DM-ILD——a retrospective cohort study with 522 cases

2020 ◽  
Author(s):  
Renjiao Li ◽  
Wen-Jun Zhu ◽  
Faping Wang ◽  
Xiaoju Tang ◽  
Fengming Luo
Keyword(s):  
Mechanical Ventilation ◽  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Low Cost ◽  
Cox Regression Analysis ◽  
Neutrophil Lymphocyte Ratio ◽  
Hazard Ratios

Abstract ObjectiveTo assess the associations between aspartate transaminase/alanine transaminase ratio (DRR) and mortality in patients with Polymyositis/dermatomyositis associated interstitial lung disease (PM/DM-ILD).Patients and MethodsThis was a retrospective cohort study, which included 522 patients with PM/DM-ILD whose DRR on admission were tested at West China Hospital of Sichuan University during the period from January 1, 2008 to December 31, 2018. Cox regression models were used to estimate hazard ratios for mortality in four predefined DRR strata (≤ 0.91, 0.91–1.26, 1.26–1.73 and > 1.73), after adjusting for age, sex, DRR stratum, diagnosis, overlap syndrome, hemoglobin, platelet count, white blood cell count, the percentage of neutrophils, neutrophil/lymphocyte ratio, albumin, creatine kinase, uric acid/creatinine ratio, triglycerides or low density lipoprotein.ResultsHigher DRR (> 1.73) was an independent predictor of 1-year mortality in multivariate Cox regression analysis (hazard ratio 3.423, 95% CI 1.481–7.911, p = .004). Patients with higher DRR more often required use of mechanical ventilation and readmission for acute exacerbation of PM/DM-ILD at 1-year follow-up.ConclusionHigher DRR on admission for PM/DM-ILD patients are associated with increased mortality, risk of mechanical ventilation and hospitalization in 1-year follow-up. This low-cost, easy-to-obtain, rapidly measured biomarker may be useful in the identification of high-risk PM/DM-ILD patients that could benefit from intensive management.

scholarly journals Incorporation of biochemical factors for survival analysis of transarterial chemoembolization in patients with hepatocellular carcinoma: A retrospective cohort study

2019 ◽  
Vol 47 (10) ◽  
pp. 4862-4871
Author(s):  
Wen-Hui Chan ◽  
Song-Fong Huang ◽  
Chao-Wei Lee ◽  
Tsung-Han Wu ◽  
Kuan-Tse Pan ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Transarterial Chemoembolization ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Long Term Outcomes ◽  
Cox Regression Analysis ◽  
The Mean

Introduction Hepatocellular carcinoma (HCC) is a common gastrointestinal cancer that occurs worldwide, and conventional transarterial chemoembolization (cTACE) is one of the first treatment choices for advanced HCC. However, biochemical factors and comorbidity have seldom been reported in the long-term outcomes. Methods This retrospective cohort study included 444 HCC patients who underwent cTACE-based therapy in 2010 to 2012. Survival outcomes were analyzed using a Kaplan–Meier curve and Cox regression analysis. Results The mean age was 62.1 ± 12.5 years, and 74.3% were men. Analysis of the mean biochemical values indicated that the presence of portal vein thrombosis, α-fetoprotein (AFP) >200 ng/mL, AJCC 7th stage III, diabetes, albumin <3 g/dL, and hemoglobin were significantly and independently associated with poorer long-term outcomes. Discussion The presence of venous thrombus and elevation of AFP levels are the most important factors in cTACE treatment. The host factors, including metabolic status and liver damage, should be evaluated in these patients.

scholarly journals Assessment of Antibiotic De-escalation by Spectrum Score in Patients With Nosocomial Pneumonia: A Single-Center, Retrospective Cohort Study

2021 ◽  
Vol 8 (11) ◽  
Author(s):  
Dan Ilges ◽  
David J Ritchie ◽  
Tamara Krekel ◽  
Elizabeth A Neuner ◽  
Nicholas Hampton ◽  
...  
Keyword(s):  
Cohort Study ◽  
Treatment Failure ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Cox Regression ◽  
Day Treatment ◽  
Single Center ◽  
Cox Regression Analysis ◽  
Patient Admissions ◽  
The Impact

Abstract Background Hospital-acquired and ventilator-associated pneumonia (HAP/VAP) cause significant mortality. Guidelines recommend empiric broad-spectrum antibiotics followed by de-escalation (DE). This study sought to assess the impact of DE on treatment failure. Methods This single-center retrospective cohort study screened all adult patients with a discharge diagnosis code for pneumonia from 2016 to 2019. Patients were enrolled if they met predefined criteria for HAP/VAP ≥48 hours after admission. Date of pneumonia diagnosis was defined as day 0. Spectrum scores were calculated, and DE was defined as a score reduction on day 3 versus day 1. Patients with DE were compared to patients with no de-escalation (NDE). The primary outcome was composite treatment failure, defined as all-cause mortality or readmission for pneumonia within 30 days of diagnosis. Results Of 11860 admissions screened, 1812 unique patient-admissions were included (1102 HAP, 710 VAP). Fewer patients received DE (876 DE vs 1026 NDE). Groups were well matched at baseline, although more patients receiving DE had respiratory cultures ordered (56.6% vs 50.6%, P = .011). There was no difference in composite treatment failure (35.0% DE vs 33.8% NDE, P = .604). De-escalation was not associated with treatment failure on multivariable Cox regression analysis (hazard ratio, 1.13; 95% confidence interval, 0.96–1.33). Patients receiving DE had fewer antibiotic days (median 9 vs 11, P &lt; .0001), episodes of Clostridioides difficile infection (2.2% vs 3.8%, P = .046), and hospital days (median 20 vs 22 days, P = .006). Conclusions De-escalation and NDE resulted in similar rates of 30-day treatment failure; however, DE was associated with fewer antibiotic days, episodes of C difficile infection, and days of hospitalization.

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