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About 10,000 papers for “Observational study”

observational study

Unresponsiveness Score, The Glasgow Coma, Michael Fischer et al. · 2013

Introduction: The Glasgow Coma Scale (GCS) is the most widely used scoring system for comatose patients in intensive care. Limitations of the GCS include the impossibility to assess the verbal score in intubated or aphasic patients, and an inconsistent inter-rater reliability. The FOUR (Full Outline of UnResponsiveness) score, a new coma scale not reliant on verbal response, was recently proposed. The aim of the present study was to compare the interrater reliability of the GCS and the FOUR score among unselected patients in general critical care. A further aim was to

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Observational Study

Mitchell H. Gail · Encyclopedia of Biostatistics · 2005

Abstract An observational study is a study in which conditions are not under the control of the investigator, unlike an experimental study. Because randomization of exposure levels is not part of an observational study, associations with exposure may result from confounding by factors associated both with exposure and health outcome.

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Observational Study

Nicola White · Figshare · 2019

Dataset for an observational study at the end of life

Cited by 0Open access

Observational Study

National Cancer Institute · Definitions · 2020

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Cited by 0Open access

observational study

Simone Accordini, Angelo Guido Corsico, Lucia Calciano et al. · 2016

The impact of asthma, chronic bronchitis and se hospitalizations and 4.6 among the asthmatics with chronic bronchitis aged 20–44 and 45–64, respectively. The contribution of Accordini et al. BMC Pulmonary Medicine (2015) 15:10 DOI 10.1186/s12890-015-0008-0and Community Medicine, University of Verona

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observational study

Bmc Gastroenterology · 2001

© 2001 Beales; licensee BioMed Central Ltd. Verbatim copying and redistribution of this article are permitted in any medium for any non-commercial purpose, provided this notice is preserved along with the article's original URL. For commercial use, contact info@biomedcentral.com Background: Many Helicobacter pylori eradication regimens have been described. There are little data reporting their efficacy or integration in routine clinical practice. The overall results of eradication therapy in a cohort of patients are described and an algorithm for management outlined. Methods: 469 patients receiving eradication therapy in routine clinical practice were evaluated. The successes of individual regimes as first, second and third line therapy were determined. Results: Overall success after one, two and three courses of therapy were 73 % (95 % confidence intervals 69–77%), 94 % (91–96%) and 98 % (97–99%) respectively. 10 different regimens, including many non-recommended ones were used as primary therapy. Ranitidine bismuth citrateamoxicillin-clarithromycin triple therapy (94.8%, 90–99%) was significantly more effective than any other combination as primary therapy, including all proton pump inhibitor based triple therapies. Quadruple therapy with bismuth chelate-proton pump inhibitor-tetracycline and a nitroimidazole

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Observational Study

White, Nicola · Figshare · 2019

Dataset for an observational study at the end of life

Cited by 0Open access

observational study

Paula J Agostini, Babu Naidu, Pala Rajesh et al. · 2016

Potentially modifiable factors contribute to limitation in physical activity following factors predictive of lower activity were also possibly modifiable/amenable to physiotherapy or pulmonary Agostini et al. Journal of Cardiothoracic Surgery 2014, 9:128

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observational study

Berit Lilienthal Heitmann, Lars Ulrik Gerdes, Marianne Schroll et al. · 2000

The analysis of dietary patterns emerged recently as a possible approach to examining diet– disease relation. We analysed the risk of all-cause and cardiovascular mortality associated with dietary patterns in men and women, while taking a number of potential confounding variables into account. Data were from a prospective cohort study with follow-up of total and cause-specific mortality. A random sample of 3698 men and 3618 women aged 30–70 years and living in Copenhagen County, Denmark, were followed from 1982 to 1998 (median 15 years). Three dietary patterns were identified from a twenty-eight item food frequency questionnaire, collected at baseline: (1) a predefined healthy food index, which reflected daily intakes of fruits, vegetables and wholemeal bread, (2) a prudent and (3) a Western dietary pattern derived by principal component analysis. The prudent pattern was positively associated with frequent intake of wholemeal bread, fruits and vegetables, whereas the Western was characterized by frequent intakes of meat products, potatoes, white bread, butter and lard. Among participants with complete information on all variables, 398 men and 231 women died during follow-up. The

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Observational Study

Won Beom Jung, Chan Wook Kim, Yong Sik Yoon et al. · Medicine · 2016

Amsterdam criteria for the hereditary nonpolyposis colorectal cancer (HNPCC) exclude most suspect cases of possible hereditary colorectal cancer (CRC). By contrast, revised Bethesda guidelines excessively broaden the disease spectrum. The aim of this study is to retrospectively evaluate the cliniciopathilogical characteristics of patients fulfilling the revised Bethesda guidelines and to review the efficacy and limitations of the revised guidelines.This retrospective study enrolled 3609 patients who underwent curative surgery for primary CRC. Patients were classified into the Bethesda group or the control group according to whether they fulfilled the revised Bethesda guidelines. Patients were further categorized when they fulfilled a minimum of 2 items of the revised guidelines. Individual items were analyzed for deficient mismatch repair (d-MMR).The median follow-up was 82.9 (interquartile range, 72-101) months. Patients in the Bethesda group were younger and had a higher rate of reduced mismatch repair (MMR) protein expression, microsatellite instability, and right colonic involvement (all P < 0.001) than the control group. As a predictor of d-MMR, the revised Bethesda guidelines showed a sensitivity of 63.0% and a specificity of 72.6%. Items 1 and 2, respectively, or the item pair 1 and 2, were independent predictors of d-MMR (all P < 0.001). Patients fulfilling the Bethesda guidelines showed clinicopathological features of HNPCC.The revised Bethesda guidelines appear to be a competent predictor of d-MMR. Specifically, items 1 and 2 are significant predictors of d-MMR and may be relevant to the application of the revised Bethesda guidelines.

Cited by 4Open access

observational study

Ting Zhu, Taisheng Li, Wei Yu · 2016

Bone turnover and bone mineral density in HIV-1 ighly active difference was not statistically significant. PTH, however, was higher in HIV patients at baseline, and showed a Zhang et al. BMC Musculoskeletal Disorders 2013, 14:224

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