Abstract：
OBJECTIVES:It is difficult to compare the reliability of triage systems with the kappa statistic. In this article, a method for comparing triage systems was developed and applied to previously conducted triage reliability studies. STUDY DESIGN AND SETTING:From simulations with theoretical distributions, the minimum, normal, and maximum weighted kappa for 3- to 5-level triage systems were computed. To compare the reliability of triage systems in previously conducted triage reliability studies, the normal kappa was calculated. Furthermore, the reported quadratically weighted kappas were compared with the minimum, normal, and maximum weighted kappa to characterize the degree and direction of skewness of the data. RESULTS:The normal kappa was higher in 3-level triage systems (median: κ=0.84) compared with 4-level (median: κ=0.37) and 5-level (median: κ=0.57) systems. In 3-level triage systems, the percentages observed agreement were unequally distributed, which resulted in small quadratically weighted kappas. In 4- and 5-level systems, the percentages observed agreement were more equally distributed compared with 3-level systems, which resulted in higher quadratically weighted kappa values. CONCLUSION:When comparing triage systems with different numbers of categories, one should report both the normal and quadratically weighted kappa. Calculating normal kappas from previously conducted triage reliability studies revealed substantial theoretical differences in interrater reliability of triage systems than previously reported.
journal_name
J Clin Epidemioljournal_title
Journal of clinical epidemiologyauthors
van der Wulp I,van Stel HFdoi
10.1016/j.jclinepi.2010.01.012subject
Has Abstractpub_date
2010-11-01 00:00:00pages
1256-63issue
11eissn
0895-4356issn
1878-5921pii
S0895-4356(10)00046-6journal_volume
63pub_type
杂志文章,评审abstract：:Time to revision is an important criterion describing the quality of implants in total joint surgery. Estimates of failure probabilities are required to inform a patient about the risk of suffering a reoperation. Also, regression models are used for comparing different prosthesis designs. Typically, patients dying bef...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(01)00371-7
更新日期：2001-10-01 00:00:00
abstract：OBJECTIVES:To investigate whether the relationship between demographic and disease-related variables and disability is constant during the first five years of inflammatory polyarthritis (IP) and to identify the contribution from involvement of specific joint areas to overall disability. METHODS:684 patients referred t...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(00)00189-x
更新日期：2000-10-01 00:00:00
abstract：:Advances in laboratory techniques have led to a rapidly increasing use of biomarkers in epidemiological studies. Biomarkers of internal dose, early biological change susceptibility and clinical outcomes are used as proxies for investigating the interactions between external and/or endogenous agents and body components...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2011.07.010
更新日期：2011-12-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:A large number of trials remain difficult to locate or unpublished for systematic reviews. The objective of this article was to determine the usefulness of making e-mail contact with authors of clinical trials and literature reviews found in MEDLINE to identify unpublished or difficult to locat...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2005.11.022
更新日期：2006-07-01 00:00:00
abstract：OBJECTIVE:To assess measurement equivalence of the Singaporean English and Chinese versions of the EuroQol Group's 5-domain questionnaire (EQ-5D) in cancer patients. STUDY DESIGN AND SETTING:Seven hundred and seventy-one ethnic Chinese patients in Singapore were recruited, and they answered either an English or a Chin...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2008.03.007
更新日期：2009-02-01 00:00:00
abstract：:We analyzed data from outpatients with chronic low back pain (LBP) in the Veterans Health Study (n = 563) to examine the relationship between localized LBP intensity and radiating leg pain in assessing patient functional status, low back disability, and use of diagnostic imaging. Based on the localized LBP intensity, ...
journal_title：Journal of clinical epidemiology
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1016/s0895-4356(99)00094-3
更新日期：1999-11-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to study if randomized controlled trials (RCTs) in rehabilitation (a field where complex interventions prevail) published in main journals include all the details needed to replicate the intervention in clinical practice (clinical replicability). STUDY DESIGN AND SETTING:Forty...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2019.06.008
更新日期：2019-10-01 00:00:00
abstract：:For deaths during the first 13 years of follow-up of the Minnesota Colon Cancer Control Study, an expert committee using numerous medical documents, and a nosologist using only the death certificate independently determined whether colorectal cancer caused the death and, if not, whether the disease was present at deat...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(99)00016-5
更新日期：1999-05-01 00:00:00
abstract：OBJECTIVES:Emergency department triage systems can be considered prediction rules with an ordinal outcome, where different directions of misclassification have different clinical consequences. We evaluated strategies to compare the performance of triage systems and aimed to propose a set of performance measures that sh...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2017.11.004
更新日期：2018-02-01 00:00:00
abstract：:A literature search identified eight articles containing data on both baldness and coronary artery disease (CAD). Three of these articles described case-control studies that showed a positive relationship between baldness and CAD when controlling for CAD risk factors. Three other case-control studies showed no such re...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/0895-4356(90)90026-l
更新日期：1990-01-01 00:00:00
abstract：OBJECTIVE:To estimate the sensitivity of International Classification of Diseases (ICD-9-CM) coding for detecting hospitalized community-acquired pneumonia and to assess possible determinants for misclassification. STUDY DESIGN AND SETTING:Based on microbiological analysis data, 293 patients with a principal diagnosis...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2006.10.018
更新日期：2007-08-01 00:00:00
abstract：:Pulmonary embolism (PE) causes substantial morbidity and mortality, but little information is available regarding recent secular trends for PE. This study determined trends for PE in adults ages 30 to 84 years in the Minneapolis-St. Paul metropolitan area from 1980 to 1995. The age-adjusted mortality rate for PE decre...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(99)00147-x
更新日期：2000-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Hui and Walter developed a latent class approach to assess the accuracy of a diagnostic procedure when no reference test is available. Our objective was to compare sensitivity and specificity estimates obtained with this reference-free approach and standard approaches, and to examine how and wh...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2004.10.021
更新日期：2005-07-01 00:00:00
abstract：OBJECTIVE:To demonstrate how decision analytic models (DAMs) can be used to quantify impact of using a (diagnostic or prognostic) prediction model in clinical practice and provide general guidance on how to perform such assessments. STUDY DESIGN AND SETTING:A DAM was developed to assess the impact of using the HEART s...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2019.07.010
更新日期：2019-11-01 00:00:00
abstract：:The nature of variability in menstrual function has not been adequately described or quantified across the reproductive life span. This article evaluates the applicability of the bipartite model approach to the analysis of menstrual data and the relative importance of within-woman variability across the reproductive l...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(99)00202-4
更新日期：2000-07-01 00:00:00
abstract：OBJECTIVES:Several methods exist to calculate sample size for the difference of proportions (risk difference). Researchers are often unaware that there are different formulae, different underlying assumptions, and what the impact of choice of formula is on the calculated sample size. The aim of this study was to discus...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2013.10.008
更新日期：2014-05-01 00:00:00
abstract：:Quality of life and functional health were measured cross-sectionally for 314 adult ambulatory primary care patients in a rural clinic and found to be much better for patients with low severity of illness who required no confinement to home because of health problems, than for patients with high severity of illness wh...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(92)90171-i
更新日期：1992-11-01 00:00:00
abstract：OBJECTIVE:Some authors of Cochrane overviews have also (co-)authored one or more of the underlying reviews. We examined the extent of dual (co-)authorship in Cochrane overviews, how it is dealt with, and whether the issue is raised in protocols. STUDY DESIGN:The Cochrane Library was searched for overviews and protocol...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2016.04.008
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVE:In lifestyle intervention trials, participants of the control group often change their behavior despite the request to maintain their usual lifestyle pattern. These changes in the control group and changes in addition to the intended in the intervention group can lead to undesirable confounding effects. STUD...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2009.10.007
更新日期：2010-08-01 00:00:00
abstract：OBJECTIVES:How often authors comment on applicability for primary care in systematic reviews of clinical trials. STUDY DESIGN AND SETTING:We selected 4% of the Cochrane Database for Systematic Reviews (CDSRs; January 2008 to October 2013). We excluded reviews when primary care trials were not eligible. We extracted wh...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2015.06.003
更新日期：2015-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to examine the proportion of men who died from prostate cancer (PrCa) vs. with PrCa and assess the comorbid conditions associated with other-cause deaths. STUDY DESIGN AND SETTING:We identified all male decedents aged >/=65 years in Jefferson County, AL, in 1993-1995. By crossli...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2003.11.009
更新日期：2004-07-01 00:00:00
abstract：OBJECTIVES:Previous mathematical analyses of diagnostic tests based on the categorization of a continuous measure have found that test sensitivity and specificity varies significantly by disease prevalence. This study determined if the accuracy of diagnostic codes varied by disease prevalence. STUDY DESIGN AND SETTING...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2016.05.009
更新日期：2016-11-01 00:00:00
abstract：:This paper describes a multivariate analysis of a 3-year prospective study of the covariates of age at menopause among women who were randomly sampled from a general population. This approach avoids three problems that may account for the inconsistent results of prior studies: recall bias in retrospectively collected ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(89)90044-9
更新日期：1989-01-01 00:00:00
abstract：OBJECTIVES:To solicit experiences with and perceptions of rapid reviews from stakeholders, including researchers, policy makers, industry, journal editors, and health care providers. STUDY DESIGN AND SETTING:An international survey of rapid review producers and modified Delphi. RESULTS:Forty rapid review producers re...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2015.08.012
更新日期：2016-02-01 00:00:00
abstract：:Toxic Oil Syndrome (TOS) is a previously unreported condition which affected more than 20,000 people in Spain in 1981 and whose natural history is unknown. In 1993-94, a stratified random sample of 1400 survivors was drawn to measure their health status through clinical examination and their self-perception of well-be...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(98)00062-6
更新日期：1998-10-01 00:00:00
abstract：OBJECTIVE:The aim of the study was to consider statistical and methodological issues affecting the results of meta-analysis of genetic association studies for pertinent gene-disease associations. Although the basic statistical issues for performing meta-analysis are well described in the literature, there are remaining...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2007.12.011
更新日期：2008-07-01 00:00:00
abstract：:Meta-analysis seems to have a potentially useful role in carefully selected situations where the primary literature is of good quality, heterogeneity in the response to treatment of the tested population is small and well-understood, interest centers on estimation of a specific, critical parameter of outcome, and the ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/0895-4356(94)00149-k
更新日期：1995-01-01 00:00:00
abstract：:Moderate consumers of alcohol have lower mortality than either nondrinkers or heavy drinkers. This systematic review aimed to quantify the level of alcohol consumption (termed the nadir) at which the lowest mortality occurs. Twenty cohort studies reported analyses of all-cause mortality for at least three categories o...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,meta分析
doi：10.1016/s0895-4356(99)00076-1
更新日期：1999-10-01 00:00:00
abstract：OBJECTIVES:To examine whether the number of early online accesses to medical research articles predicts citations in the scientific literature over time. STUDY DESIGN AND SETTING:Cohort study of research articles published in the BMJ between January and June 1999. The number of online assesses within 1 week of publica...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2015.01.024
更新日期：2015-12-01 00:00:00
abstract：:During 1978-1990, 346 patients with sarcoidosis were enrolled in our institute. Of 346 patients, 295 patients were eligible for evaluation on the clinical course and prognosis. According of their clinical presentations, they were classified into 3 groups; severe, moderate and mild sarcoidosis. Of the 295 patients, 27 ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(93)90150-y
更新日期：1993-04-01 00:00:00
