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474 records – page 1 of 48.

Source
Infect Control Hosp Epidemiol. 1991 Oct;12(10):622-4
Publication Type
Article
Date
Oct-1991
Author
D. Birnbaum
S B Sheps
Author Affiliation
Applied Epidemiology, Sidney, British Columbia, Canada.
Source
Infect Control Hosp Epidemiol. 1991 Oct;12(10):622-4
Date
Oct-1991
Language
English
Publication Type
Article
Keywords
British Columbia
Diagnosis
Humans
Predictive value of tests
Reproducibility of Results
Sensitivity and specificity
PubMed ID
1787311 View in PubMed
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Validation of 1997 Partin Tables' lymph node invasion predictions in men treated with radical prostatectomy in Montreal Quebec.

https://arctichealth.org/en/permalink/ahliterature174921
Source
Can J Urol. 2005 Apr;12(2):2588-92
Publication Type
Article
Date
Apr-2005
Author
Pierre I Karakiewicz
Jean-Baptiste Lattouf
Paul Perrotte
Luc Valiquette
François Bénard
Michael McCormack
Catherine Ménard
Thierry Lebeau
Serge Benayoun
Alvaro Ramirez
Simon Ouaknine
Fred Saad
Author Affiliation
Department of Surgery (Urology), Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.
Source
Can J Urol. 2005 Apr;12(2):2588-92
Date
Apr-2005
Language
English
Publication Type
Article
Keywords
Humans
Lymphatic Metastasis
Male
Predictive value of tests
Prostatectomy
Prostatic Neoplasms - pathology - surgery
Quebec
Reproducibility of Results
Abstract
The accuracy of 1997 Partin Tables' lymph node invasion (LNI) predictions exhibits important variability in different testing populations. We explored the LNI predictive accuracy in radical prostatectomy (RP) patients from Montreal, Canada. Moreover, we assessed the extent of change in predictive accuracy related to a modification of PSA coding from categorical to continuous.
We used pretreatment serum PSA, clinical stage, and biopsy Gleason sum from 537 men treated with RP to compare predicted and observed rates of LNI. Accuracy was quantified with receiver-operating characteristics curves.
Accuracy was 0.760 in 369 evaluable patients, when categorically coded pretreatment PSA (0-4, 4.1-10, 10.1-20, 20.1+) was combined with clinical stage and biopsy Gleason sum. A 2.7% accuracy increase was noted when categorically coded PSA was replaced with continuously coded values.
Partin Tables' LNI predictions showed comparable accuracy to a community-based sample from the United States (0.766), and to a recent, multi-institutional sample (0.740). However, accuracy was lower than reported in internal (0.818), and external (0.837) academic, validation cohorts. Accuracy of LNI predictions was appreciably higher, when continuously coded PSA was used.
PubMed ID
15877940 View in PubMed
Less detail
Source
Acta Anaesthesiol Scand. 2009 Oct;53(9):1230-1
Publication Type
Article
Date
Oct-2009
Author
K. Zajac
J. Andres
M. Zajac
Source
Acta Anaesthesiol Scand. 2009 Oct;53(9):1230-1
Date
Oct-2009
Language
English
Publication Type
Article
Keywords
Algorithms
Humans
Italy
Monitoring, Intraoperative - instrumentation - methods
Norway
Predictive value of tests
Reference Standards
Reproducibility of Results
Notes
Comment On: Acta Anaesthesiol Scand. 2009 May;53(5):595-60019419352
Comment On: Acta Anaesthesiol Scand. 2009 May;53(5):589-9419419351
PubMed ID
19737189 View in PubMed
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External validation of the LittlEARSĀ® Auditory Questionnaire with English-speaking families of Canadian children with normal hearing.

https://arctichealth.org/en/permalink/ahliterature135279
Source
Int J Pediatr Otorhinolaryngol. 2011 Jun;75(6):815-7
Publication Type
Article
Date
Jun-2011
Author
Marlene P Bagatto
Christine L Brown
Sheila T Moodie
Susan D Scollie
Author Affiliation
National Centre for Audiology, Faculty of Health Sciences, University of Western Ontario, London, Ontario, Canada N6G 1H1. bagatto@nca.uwo.ca
Source
Int J Pediatr Otorhinolaryngol. 2011 Jun;75(6):815-7
Date
Jun-2011
Language
English
Publication Type
Article
Keywords
Age Factors
Canada
Female
Hearing - physiology
Humans
Infant
Language
Male
Predictive value of tests
Questionnaires
Reference Values
Reproducibility of Results
Abstract
To examine the external validity of the United Kingdom English version of the LittlEARS(®) Auditory Questionnaire with English-speaking families of Canadian children with normal hearing.
The United Kingdom English version of the LittlEARS was administered to English-speaking families of 130 children with normal hearing in Ontario, Canada. Total scores for these children were compared to German-derived normative values.
There was no significant difference between Canadian and German norms when using the United Kingdom English version of the LittlEARS Auditory Questionnaire.
The United Kingdom English version of the LittlEARS Auditory Questionnaire is appropriate for use with English-speaking families of normal hearing Canadian children.
PubMed ID
21492945 View in PubMed
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Development and evaluation of an index to predict early postmenopausal bone loss.

https://arctichealth.org/en/permalink/ahliterature67841
Source
Bone. 1992;13(4):337-41
Publication Type
Article
Date
1992
Author
J A Falch
L. Sandvik
E C Van Beresteijn
Author Affiliation
Department of Internal Medicine, Aker University Hospital, Oslo, Norway.
Source
Bone. 1992;13(4):337-41
Date
1992
Language
English
Publication Type
Article
Keywords
Female
Humans
Netherlands
Norway
Osteoporosis, Postmenopausal - metabolism - pathology
Predictive value of tests
Prospective Studies
Regression Analysis
Reproducibility of Results
Risk factors
Abstract
An index to predict individual postmenopausal bone loss is presented. The index is developed by means of data from a 10-year prospective Norwegian study in which bone mass of the distal forearm was measured annually in 73 women. All the women were 47 years old and premenopausal at inclusion. Independent risk factors for postmenopausal bone loss were identified by applying multivariate regression analysis on anthropometric, biochemical, nutritional, and life-style variables measured at menopause. The analysis identified low body weight, reduced renal phosphate reabsorption, and smoking as significant independent risk factors, and by means of these three factors a predictive index for postmenopausal bone loss was developed. This index was validated by using data from a 10-year longitudinal Dutch study, in which bone mass of the proximal radius was measured annually in 86 women, aged between 49 and 57 years and perimenopausal at inclusion. We defined women with the highest index score as "high-risk persons." According to this definition approximately 25% of the perimenopausal women were classified as high-risk persons, and the estimated sensitivity/specificity/positive predictive power were 36%, 89%, and 74%, respectively, when used to select women with a postmenopausal bone loss above average. We conclude that the index may be helpful in identifying healthy perimenopausal women in whom bone mass measurements should be considered.
PubMed ID
1389575 View in PubMed
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Validity of Peripheral Arterial Disease Diagnoses in the Danish National Patient Registry.

https://arctichealth.org/en/permalink/ahliterature288292
Source
Eur J Vasc Endovasc Surg. 2017 May;53(5):679-685
Publication Type
Article
Date
May-2017
Author
A N Lasota
K. Overvad
H H Eriksen
A. Tjønneland
E B Schmidt
M-L M Grønholdt
Source
Eur J Vasc Endovasc Surg. 2017 May;53(5):679-685
Date
May-2017
Language
English
Publication Type
Article
Keywords
Aged
Denmark - epidemiology
Female
Humans
Male
Middle Aged
Peripheral Arterial Disease - diagnosis - epidemiology
Predictive value of tests
Registries
Reproducibility of Results
Abstract
The objective was to validate the diagnoses of peripheral arterial disease (PAD) in the legs, obtained from national registers in Denmark.
In total, 1435 registered cases of PAD were identified in the Danish National Patient Registry among 57,053 middle aged participants from the Danish Diet, Cancer and Health cohort study. Validation was performed by reviewing all medical records using pre-specified criteria for a diagnosis of PAD.
The overall positive predictive value (PPV) of PAD diagnoses was 69.4% [95% confidence interval (CI) 67.0-71.7]. The PPV of diagnoses given in departments of vascular surgery was significantly higher than diagnoses given in other departments: 71.9% (95% CI 69.2-74.4) versus 58.3% (95% CI 52.2-64.2), respectively. In a sub-study, 141 potential cases of PAD also registered in the Danish National Vascular Registry were evaluated, and a PPV of 87.9% (95% CI 81.4-92.4) was found for these diagnoses.
More than 30% of the diagnoses of PAD notified in the Danish National Patient Registry were not valid, stressing the importance of validation when using register information for research purposes. In contrast, diagnoses obtained from the Danish National Vascular Registry had a high validity ready for use without further validation.
Notes
Comment In: Eur J Vasc Endovasc Surg. 2017 May;53(5):611-61228400093
PubMed ID
28187995 View in PubMed
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Should Canadians be offered systematic screening for colorectal cancer?: no.

https://arctichealth.org/en/permalink/ahliterature157748
Source
Can Fam Physician. 2008 Apr;54(4):505-6, 509, 511
Publication Type
Article
Date
Apr-2008
Author
Fernand Turcotte
Author Affiliation
Laval University, Department of Social and Preventive Medicine, 2180 Ste-Foy, Quebec, QC G1K 7P4. Fernand.Turcotte@msp.ulaval.ca
Source
Can Fam Physician. 2008 Apr;54(4):505-6, 509, 511
Date
Apr-2008
Language
English
French
Publication Type
Article
Keywords
Canada - epidemiology
Colorectal Neoplasms - diagnosis - mortality
Early Diagnosis
Health Policy
Humans
Mass Screening
Occult Blood
Predictive value of tests
Reproducibility of Results
Notes
Comment In: Can Fam Physician. 2008 Jul;54(7):97818625818
Comment On: Can Fam Physician. 2008 Apr;54(4):504, 506, 508 passim18411370
PubMed ID
18411371 View in PubMed
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Criteria for evaluation of measurement properties of clinical balance measures for use in fall prevention studies.

https://arctichealth.org/en/permalink/ahliterature158428
Source
J Eval Clin Pract. 2008 Apr;14(2):236-40
Publication Type
Article
Date
Apr-2008
Author
Rolf Moe-Nilssen
Ellinor Nordin
Lillemor Lundin-Olsson
Author Affiliation
Department of Public Health and Primary Health Care, University of Bergen, Norway. rolf.moe-nilssen@isf.uib.no
Source
J Eval Clin Pract. 2008 Apr;14(2):236-40
Date
Apr-2008
Language
English
Publication Type
Article
Keywords
Accidental Falls - prevention & control
Female
Humans
Male
Norway
Postural Balance - physiology
Predictive value of tests
Psychomotor Performance - physiology
Reproducibility of Results
Research Design
Abstract
Work Package 3 of the Prevention of Falls Network Europe has evaluated measurement properties of clinical balance measures to be used to: (1) select participants for interventions with the goal to prevent falls in older people, and (2) assess the results of such intervention on balance function. Inclusion in a fall prevention study may be based on measures identifying subjects who have impaired balance or increased risk of future falls. We propose that an appropriate statistical method to analyse discriminative ability of a balance measure is discriminant analysis or logistic regression analysis. The optimal cut-off score is best determined by plotting a receiver-operating-characteristic curve for different cut-off values. The evaluation of predictors for risk of future falls should be based on a study design with a prospective data collection of falls. Sensitivity to change is a measurement property needed to evaluate the outcome of an intervention. The standardized response mean is frequently encountered in the literature and is recommended as a statistical measure of sensitivity to change in the context of an intervention study. Adequate reliability is a prerequisite for consistent measurement. Relative reliability may be reported as an intraclass correlation coefficient and absolute reliability as the within-subject standard deviation (s(w)), also called standard error of measurement. When measurement error is proportional to the score, calculation of a coefficient of variation can be considered. In a second paper, the authors will evaluate clinical balance measures for use in fall prevention studies based upon criteria recommended in this report.
PubMed ID
18324932 View in PubMed
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Trade-offs in the assessment of aphasia in acute stroke.

https://arctichealth.org/en/permalink/ahliterature185046
Source
Cerebrovasc Dis. 2003;16(2):180; author reply 180
Publication Type
Article
Date
2003

Validation of an automated immunoturbidimetric assay for measurement of plasma D-dimer.

https://arctichealth.org/en/permalink/ahliterature183901
Source
Clin Chem Lab Med. 2003 Jul;41(7):958-62
Publication Type
Article
Date
Jul-2003
Author
Mojca Bozic
Mojca Stegnar
Author Affiliation
Department of Angiology, University Medical Centre, Ljubljana, Slovenia. mojca.bozic@trnovo.kclj.si
Source
Clin Chem Lab Med. 2003 Jul;41(7):958-62
Date
Jul-2003
Language
English
Publication Type
Article
Keywords
Automation - methods
Fibrin Fibrinogen Degradation Products - analysis
Humans
Immunoassay - methods
Nephelometry and Turbidimetry - methods
Predictive value of tests
Reference Values
Reproducibility of Results
Abstract
The performance characteristics and diagnostic accuracy of a new rapid automated quantitative immunoturbidimetric D-dimer assay, Auto-Dimer (Biopool, Umeå, Sweden) were evaluated in a population of 135 outpatients with suspected deep-vein thrombosis of a lower limb. Enzyme-linked immunosorbent assay was used as the reference method. The Auto-Dimer assay showed good reproducibility. The correlation between Auto-Dimer and enzyme-linked immunosorbent assay was high (r = 0.91, p
PubMed ID
12940525 View in PubMed
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474 records – page 1 of 48.