Comparison of transperineal and transrectal targeted prostate biopsy using Mahalanobis distance matching within propensity score caliper method: A multicenter study of Turkish Urooncology Association

The Prostate ◽  
2021 ◽  
Author(s):  
Murat Yavuz Koparal ◽  
Tevfik Sinan Sözen ◽  
Nejdet Karşıyakalı ◽  
Güven Aslan ◽  
Bülent Akdoğan ◽  
...  
Keyword(s):  
Propensity Score ◽  
Multicenter Study ◽  
Prostate Biopsy ◽  
Mahalanobis Distance

scholarly journals Mahalanobis' distance and propensity score to construct a controlled matched group in a Brazilian study of health promotion and social determinants

2014 ◽  
Vol 17 (3) ◽  
pp. 668-679 ◽  
Author(s):  
Valéria Troncoso Baltar ◽  
Clóvis Arlindo de Sousa ◽  
Marcia Faria Westphal
Keyword(s):  
Health Promotion ◽  
Propensity Score ◽  
Human Development ◽  
Mahalanobis Distance ◽  
Human Development Index ◽  
Intervention Studies ◽  
Local Development ◽  
Control Group ◽  
Development Index ◽  
Social Agendas

In observational epidemiology it is usual to select a control group to study the effects of certain exposures on human health. Intervention studies are well known among epidemiologists but it is not very frequent in other areas of research. In this paper we propose the same idea of intervention studies and the use of three methods for a health promotion research control group selection: Propensity score, Mahalanobis' distance and Mahalanobis within Propensity Calipers. In the original project, "Health and Local Development: a progress review towards the millennium goals with relation to health in the Brazilian cities which develop social agendas", cities with social agendas from Brazil were matched separately by state. In the state of Paraná there are 397 cities. Of these, 34 presented social agendas implemented and active since, at least, 2004. Five variables measured in 2000 were considered for the matching: population size, human development index of income, human development index of education, percentage of literacy and vaccine coverage. As a result, among these three methods, the Mahalanobis by itself was considered the less efficient. In conclusion, the propensity, which is a very simple linear score, presented very good matched sample. However, the Mahalanobis within Calipers was the method that provided the best result.

Moderate obstructive sleep apnea and cardiovascular outcomes in older adults: a propensity score matched multicenter study (CPAGE-MODE Study)

2021 ◽  
Author(s):  
Daniel López-Padilla ◽  
José Terán-Tinedo ◽  
Alicia Cerezo-Lajas ◽  
Laura Ramírez García ◽  
Elena Ojeda-Castillejo ◽  
...  
Keyword(s):  
Older Adults ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Propensity Score ◽  
Multicenter Study ◽  
Cardiovascular Outcomes ◽  
Obstructive Sleep ◽  
Mode Study

scholarly journals Oncologic outcomes of segmentectomy compared with lobectomy for clinical stage IA lung adenocarcinoma: Propensity score–matched analysis in a multicenter study

2013 ◽  
Vol 146 (2) ◽  
pp. 358-364 ◽  
Author(s):  
Yasuhiro Tsutani ◽  
Yoshihiro Miyata ◽  
Haruhiko Nakayama ◽  
Sakae Okumura ◽  
Shuji Adachi ◽  
...  
Keyword(s):  
Propensity Score ◽  
Lung Adenocarcinoma ◽  
Multicenter Study ◽  
Clinical Stage ◽  
Oncologic Outcomes ◽  
Clinical Stage Ia ◽  
Stage Ia

scholarly journals Extended Infusion of β-Lactams for Bloodstream Infection in Patients With Liver Cirrhosis: An Observational Multicenter Study

2019 ◽  
Vol 69 (10) ◽  
pp. 1731-1739 ◽  
Author(s):  
Michele Bartoletti ◽  
Maddalena Giannella ◽  
Russell E Lewis ◽  
Paolo Caraceni ◽  
Sara Tedeschi ◽  
...  
Keyword(s):  
Liver Cirrhosis ◽  
Propensity Score ◽  
Regression Model ◽  
Bloodstream Infection ◽  
Multicenter Study ◽  
Cox Regression ◽  
Intermittent Infusion ◽  
Beta Lactams ◽  
Cirrhotic Patients ◽  
Extended Infusion

Abstract Background We analyzed the impact of continuous/extended infusion (C/EI) vs intermittent infusion of piperacillin-tazobactam (TZP) and carbapenems on 30-day mortality of patients with liver cirrhosis and bloodstream infection (BSI). Methods The BICRHOME study was a prospective, multicenter study that enrolled 312 cirrhotic patients with BSI. In this secondary analysis, we selected patients receiving TZP or carbapenems as adequate empirical treatment. The 30-day mortality of patients receiving C/EI or intermittent infusion of TZP or carbapenems was assessed with Kaplan-Meier curves, Cox-regression model, and estimation of the average treatment effect (ATE) using propensity score matching. Results Overall, 119 patients received TZP or carbapenems as empirical treatment. Patients who received C/EI had a significantly lower mortality rate (16% vs 36%, P = .047). In a Cox-regression model, the administration of C/EI was associated with a significantly lower mortality (hazard ratio [HR], 0.41; 95% confidence interval [CI], 0.11–0.936; P = .04) when adjusted for severity of illness and an ATE of 25.6% reduction in 30-day mortality risk (95% CI, 18.9–32.3; P < .0001) estimated with propensity score matching. A significant reduction in 30-day mortality was also observed in the subgroups of patients with sepsis (HR, 0.21; 95% CI, 0.06–0.74), acute-on-chronic liver failure (HR, 0.29; 95% CI, 0.03–0.99), and a model for end-stage liver disease score ≥25 (HR, 0.26; 95% CI, 0.08–0.92). At competing risk analysis, C/EI of beta-lactams was associated with significantly higher rates of hospital discharge (subdistribution hazard [95% CI], 1.62 [1.06–2.47]). Conclusions C/EI of beta-lactams in cirrhotic patients with BSI may improve outcomes and facilitate earlier discharge.

scholarly journals Comparison of diagnostic efficacy between transrectal and transperineal prostate biopsy: A propensity score-matched study

2019 ◽  
Vol 21 (6) ◽  
pp. 612
Author(s):  
Qiang Wei ◽  
Fu-Jun Zhao ◽  
Chen-Yi Jiang ◽  
Peng-Fei Shen ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Propensity Score ◽  
Prostate Biopsy ◽  
Diagnostic Efficacy ◽  
Transperineal Prostate Biopsy ◽  
Matched Study
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