Search results for "interval"

An experimental study on long term outcomes after magnetic esophageal compression anastomosis in piglets

2021

Abstract Background/Purpose Previous studies have shown that a patent, watertight esophageal anastomosis can be accomplished safely using specially-shaped magnets in piglets. However, it is unclear whether such a magnetic esophageal compression anastomosis (MECA) remains patent in the long-term. The purpose of this study was to evaluate the long-term outcome of MECA in an experimental pig model over an observation period of 2 months. Methods Ten piglets underwent creation of an MECA with custom-made 8 mm magnets and a U-shaped esophageal bypass loop to allow peroral nutrition at eight weeks of life. Two weeks later, the bypass loop was closed surgically, requiring the pigs to swallow via th…

Calculating confidence intervals for impact numbers

2006

Abstract Background Standard effect measures such as risk difference and attributable risk are frequently used in epidemiological studies and public health research to describe the effect of exposures. Recently, so-called impact numbers have been proposed, which express the population impact of exposures in form of specific person or case numbers. To describe estimation uncertainty, it is necessary to calculate confidence intervals for these new effect measures. In this paper, we present methods to calculate confidence intervals for the new impact numbers in the situation of cohort studies. Methods Beside the exposure impact number (EIN), which is equivalent to the well-known number needed …

Calculation of NNTs in RCTs with time-to-event outcomes: A literature review

2008

Abstract Background The number needed to treat (NNT) is a well-known effect measure for reporting the results of clinical trials. In the case of time-to-event outcomes, the calculation of NNTs is more difficult than in the case of binary data. The frequency of using NNTs to report results of randomised controlled trials (RCT) investigating time-to-event outcomes and the adequacy of the applied calculation methods are unknown. Methods We searched in PubMed for RCTs with parallel group design and individual randomisation, published in four frequently cited journals between 2003 and 2005. We evaluated the type of outcome, the frequency of reporting NNTs with corresponding confidence intervals,…

1-Year Outcomes of Everolimus-Eluting Bioresorbable Scaffolds Versus Everolimus-Eluting Stents

2016

Abstract Objectives The purpose of this study was to compare the 1-year outcomes of the ABSORB everolimus-eluting bioresorbable scaffold (BRS) (Abbott Vascular, Santa Clara, California) and the XIENCE everolimus-eluting stent (EES) (Abbott Vascular) in patients undergoing percutaneous coronary intervention. Background Randomized studies of the ABSORB BRS have been performed in selected patient and lesion scenarios. The available registries of the ABSORB BRS reflect real-world practice more closely compared with randomized studies, but most of them are limited by the small sample size and the lack of comparative outcomes versus second-generation drug-eluting stents. Methods A total of 1,189 …

Basic self-reports as an indicator of physical activity

2016

Introduction: Basic self-reports of physical activity (PA) has been applied by clinicians to identify whether adolescents with asthma are physically active. Aim: To investigate whether basic self-reports of PA in adolescents with and without asthma can be used as an indicator of PA with objective measures as criterion. Methods: One-hundred-and sixty (99 boys) adolescents (mean age 13.5 yrs) with (n=88) and without (n=72) asthma completed recordings of PA for three consecutive week-days and one weekend-day using the SenseWear TM Pro 2 Armband (BodyMedia Inc., Pittsburgh, PA). Cut off point defining moderate to vigorous intensity PA (MVPA) was 3 metabolic equivalents. Self-reported PA was ass…

Liver injury in patients with severe acute respiratory syndrome coronavirus-2 infection: a systematic review and meta-analysis.

2020

OBJECTIVE: Coronavirus disease-19 (COVID-19) infection is a global health threat. To inform the liver community on the potential relevance of COVID-19, we performed a systematic review and meta-analysis of published data on liver injury in patients with COVID-19 infection. METHODS: We searched PubMed and Google Scholar through 22 March according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Pooled data were analyzed by using random-effects meta-analyses. RESULTS: A total of 14 studies combining data from 2.871 patients were identified. The prevalence of pre-existing liver disease was reported at 3.1%. The pooled prevalence of elevated aspartate aminot…

Prognostic Impact of 3-HM Concentration in Patients with Alcoholic or Viral Cirrhosis

2018

The role of endotoxemia related to intestinal bacterial translocation in worsening liver disease is the subject of many studies, but its impact on cirrhosis mortality has not been well evaluated. In this study, 3-hydroxymyristate (3-HM) (specific lipid of lipopolysaccharides) was directly quantified by an innovative patented assay with the aim of assessing the impact on cirrhosis mortality. The 3-HM concentration was measured in 593 patients with alcoholic or viral cirrhosis in stable clinical condition. A Cox hazards regression model was used to evaluate association between 3-HM and its fractions bound or nor bound to lipoprotein and the mortality. The 3-HM concentration was increased in p…

2021

AIMS/INTRODUCTION In patients with pulmonary embolism (PE), the impact of diabetes mellitus on patient profile and outcome is not well investigated. MATERIAL AND METHODS The German nationwide inpatient sample of the years 2005-2018 was analyzed. Hospitalized PE patients were stratified for diabetes, and the impact of diabetes on in-hospital events was investigated. RESULTS Overall, 1,174,196 PE patients (53.8% aged ≥70 years, 53.5% women) and, among these, 219,550 (18.7%) diabetes patients were included. In-hospital mortality rate amounted to 15.8%, and was higher in diabetes patients than in non-diabetes patients (19.8% vs 14.8%, P < 0.001). PE patients with diabetes had a higher prevalenc…

Retreatment with pegylated interferon plus ribavirin of chronic hepatitis C non-responders to interferon plus ribavirin: A meta-analysis

2009

Efficacy of retreatment with pegylated interferon (PEG-IFN) plus ribavirin of non-responders to standard or pegylated IFN plus ribavirin has been assessed in various studies, but sustained virologic response (SVR) rates are variable and factors influencing efficacy and tolerability still remain incompletely defined. We aimed to focus on SVR rates and to identify factors influencing them in this meta-analysis.MEDLINE as well as a manual search were used. Studies were included if they were controlled or uncontrolled trials, if they had been published as full-length papers and if they included non-responders to standard or pegylated IFN and ribavirin therapy. Fourteen trials were included in t…

Antibody Pattern of HCV Infection and Hepatocellular Carcinoma in Italy: A Case Control Study

1994

The association of hepatitis C virus (HCV) infection with hepatocellular carcinoma (HCC) and the presence of a specific antibody pattern was assessed by means of a case-control study conducted in Italy on 65 consecutive newly diagnosed HCC cases and 99 sex- and age-matched control patients with chronic nonhepatic disease. The prevalences of antibody to HCV (anti-HCV) and hepatitis B surface antigen (HBsAg) observed were 66.2% and 24.6%, respectively. The relative risk for the association of each of the two markers with HCC, as calculated by multiple logistic analysis, was 26.9 (95% confidence intervals (CI): 9.9–72.5) for anti-HCV and 11.4 (95% CI: 3.1–41.1) for HBsAg. Thus, they constitute…