Abstract:
:The similarity in meaning assigned to response choice labels from the SF-36 Health Survey (SF-36) was evaluated across countries. Convenience samples of judges (range, 10 to 117; median = 48) from 13 countries rated translations of response choice labels, using a variation of the Thurstone method of equal appearing intervals. Judges marked a point on a 10-cm line-representing the magnitude of a response choice label (e.g., "good" relative to the anchors of "poor" and "excellent"). Ratings were evaluated to determine the ordinal consistency of response choice labels within a response scale; the degree to which differences between adjacent response choice labels were equal interval; and the amount of variance due to response choice label, country, judge, and interaction between response choice label and country. Results confirmed the hypothesized ordering of response choice labels; the percentage of ordinal pairs ranged from 88.7% to 100% (median = 98.2%) across countries and response scales. Examination of the average magnitudes of response choice labels supported the "quasi-interval" nature of the scales. Analysis of variance (ANOVA) results supported the generalizability of response choice magnitudes across countries; labels explained 64% to 77% of the variance in ratings, and country explained 1% to 3%. These results support the equivalence of SF-36 response choice labels across countries. Departures from the assumption of equal intervals, when observed, were similar across countries and were greatest for the two response scales that are recalibrated under standard SF-36 scoring. Results provide justification for scoring translations of individual items using standard SF-36 scoring; whether these items form the same scales in other countries as they do in the United States is evaluated with tests of scaling assumptions.
journal_name
J Clin Epidemioljournal_title
Journal of clinical epidemiologyauthors
Keller SD,Ware JE Jr,Gandek B,Aaronson NK,Alonso J,Apolone G,Bjorner JB,Brazier J,Bullinger M,Fukuhara S,Kaasa S,Leplège A,Sanson-Fisher RW,Sullivan M,Wood-Dauphinee Sdoi
10.1016/s0895-4356(98)00084-5subject
Has Abstractpub_date
1998-11-01 00:00:00pages
933-44issue
11eissn
0895-4356issn
1878-5921pii
S0895435698000845journal_volume
51pub_type
杂志文章abstract::Our objective was to describe distortion in outcome studies due to "frailty bias" or differential susceptibility to adverse health outcomes due to frailties but attributed to other factors. We linked an administrative database to survey data (n = 5934) containing functional, condition, and outcome measures. The diseas...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/s0895-4356(99)00056-6
更新日期:1999-08-01 00:00:00
abstract::The purpose of this study was to evaluate whether elements signifying relative insulin sensitivity (IS) were prospectively linked to accidents and suicides in 14,976 Helsinki Heart Study (HHS) screenees. The main outcome measure was hospitalizations and deaths from accidents and suicide attempts determined from Finnis...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/s0895-4356(02)00407-9
更新日期:2002-08-01 00:00:00
abstract::Assessment of changes in endemic infections in health care facilities are often based on comparison of infection rates over time. This study compared two methods for calculating and depicting infection data at a hospital-based nursing home care unit. Prospective incidence surveillance of nursing home acquired infectio...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/0895-4356(88)90162-x
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVES:To outline contemporary and novel developments for the presentation and reporting of syntheses of qualitative, implementation, and process evaluation evidence and provide recommendations for the use of reporting guidelines. STUDY DESIGN AND SETTING:An overview of reporting guidelines for qualitative, implem...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2017.10.022
更新日期:2018-05-01 00:00:00
abstract::To assess the impact of disease and treatment on patients with advanced non-small cell lung cancer (NSCLC), we set out to determine a clinically meaningful change (CMC) on the Lung Cancer Subscale (LCS) and the Trial Outcome Index (TOI) of the Functional Assessment of Cancer Therapy-Lung (FACT-L) questionnaire. We use...
journal_title:Journal of clinical epidemiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0895-4356(01)00477-2
更新日期:2002-03-01 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::Health screening is defined as the use of a test or a series of tests to detect unrecognized health risks or preclinical disease in apparently healthy populations to permit prevention and timely intervention. A health screening strategy consists of the sequence of a screening test, confirmatory test(s), and finally, t...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2010.09.009
更新日期:2011-03-01 00:00:00
abstract::To assess fracture risk following bilateral oophorectomy, we conducted a population-based retrospective cohort study among the 463 Rochester, Minnesota women who underwent bilateral oophorectomy for benign ovarian conditions in 1950-1979. During 7220 person-years of observation, there appeared to be a modest increase ...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/0895-4356(96)00211-9
更新日期:1996-10-01 00:00:00
abstract:OBJECTIVE:Asymptomatic peripheral arterial occlusive disease (PAOD) is a common atherosclerotic disorder among the elderly population. Scarce data are available on the risk of nonfatal and fatal cardiovascular diseases in these subjects. We investigated cardiovascular morbidity and mortality of asymptomatic PAOD subjec...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jclinepi.2003.09.003
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVES:The aim of the study was to identify the range of issues labeled as "non-financial conflicts of interest" in biomedicine, articulate the associated concerns, and analyze the implications of defining these issues as conflicts of interest. STUDY DESIGN AND SETTING:This was a qualitative study, triangulating d...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2019.12.014
更新日期:2020-04-01 00:00:00
abstract::To investigate the possible association between changes in coffee consumption and serum cholesterol levels, information was obtained from 2109 healthy nonsmokers aged 25-65 years at two clinic visits to a preventive medical center between 1987 and 1991 (mean interval between visits: 16.7 months). After adjusting for a...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/0895-4356(95)00023-w
更新日期:1995-10-01 00:00:00
abstract::We analyzed the 1986-1997 mortality in a cohort of 2065 residents of an Italian municipality which had been exposed to drinking water with a high content of inorganic selenium over a long period of time, and compared it with mortality in the remainder of the municipal population. Mortality from malignant neoplasms inc...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/s0895-4356(00)00233-x
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVES:A large body of comparative effectiveness research (CER) focuses on the use of observational and quasi-experimental approaches. We sought to examine the use of clinical trials as a tool for CER, particularly in mental health. STUDY DESIGN AND SETTING:Examination of three ongoing randomized clinical trials i...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2013.02.013
更新日期:2013-08-01 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:BACKGROUND AND OBJECTIVES:To characterize the impact of multiple Institutional Review Board (IRB) reviews on multicenter observational research studies, and identify strategies for overcoming the identified challenges. MATERIALS AND METHODS:Using PubMed, we identified empirical studies, anecdotal reports, and opinion ...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章,评审
doi:10.1016/j.jclinepi.2005.11.018
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVE:When studying the effects of a non-pharmacologic intervention, the choice of a control group is often difficult. In a study on the effectiveness of increased water intake on voiding dysfunction in elderly men we used an unusual design. This article addresses the internal validty and ethics of this design. ST...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2004.08.009
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVE:To test the theory of a U-shaped association between time from the first presentation of symptoms in primary care to the diagnosis (the diagnostic interval) and mortality after diagnosis of colorectal cancer (CRC). STUDY DESIGN AND SETTING:Three population-based studies in Denmark and the United Kingdom usin...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2011.12.006
更新日期:2012-06-01 00:00:00
abstract:UNLABELLED:To systematically investigate location bias of controlled clinical trials in complementary/alternative medicine (CAM). METHODS:Literature searches were performed to identify systematic reviews and meta-analyses, which were used to retrieve controlled clinical trials. Trials were categorised by whether they ...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/s0895-4356(99)00220-6
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Methods to identify studies for systematic reviews of diagnostic accuracy are less well developed than for reviews of intervention studies. This study assessed (1) the sensitivity and precision of five published search strategies and (2) the reliability and accuracy of reviewers screening the ...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2004.09.011
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVE:Mendelian randomization is a popular technique for assessing and estimating the causal effects of risk factors. If genetic variants which are instrumental variables for a risk factor are shown to be additionally associated with a disease outcome, then the risk factor is a cause of the disease. However, in man...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2015.08.001
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:Optimism bias refers to unwarranted belief in the efficacy of new therapies. We assessed the impact of optimism bias on a proportion of trials that did not answer their research question successfully and explored whether poor accrual or optimism bias is responsible for inconclusive results. STUDY DESIGN:Syst...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章,评审
doi:10.1016/j.jclinepi.2010.09.007
更新日期:2011-06-01 00:00:00
abstract::The traditional approach in epidemiology of relating exposure to an environmental agent such as a drug or infective agent has been to measure an overall risk (i.e., average and then "adjust risk for demographic variables and other confounders"). An attempt is sometimes made to define a "susceptible" subgroup. The anal...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/s0895-4356(97)00052-8
更新日期:1997-06-01 00:00:00
abstract::Core outcome sets (COSs) are agreed-on standardized sets of outcomes that should be minimally measured in all trials of a given disease. To enhance the uptake of COSs in trials, their generalizability should be increased by a change in the number and diversity of stakeholders involved in their development. Also, their...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2020.01.004
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVES:To present estimates of clinically meaningful or minimal important changes for the Oxford Hip Score (OHS) and the Oxford Knee Score (OKS) after joint replacement surgery. STUDY DESIGN AND SETTING:Secondary data analysis of the NHS patient-reported outcome measures data set that included 82,415 patients list...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2014.08.009
更新日期:2015-01-01 00:00:00
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journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/0895-4356(91)90042-8
更新日期:1991-01-01 00:00:00
abstract::Recently, there has been a great deal of discussion regarding the use of administrative databases to study outcomes of medical care. A major issue in this discussion is how to classify patients in terms of characteristics such as disease-severity, comorbidities, resource needs, stability, etc. Different indices have b...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/0895-4356(94)00202-2
更新日期:1995-07-01 00:00:00
abstract:OBJECTIVES:To demonstrate analytic approaches for matched studies where two controls are linked to each case and events are accumulating counts rather than binary outcomes. A secondary intent is to clarify the distinction between total risk and excess risk (unmatched vs. matched perspectives). STUDY DESIGN AND SETTING...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2018.02.005
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:There is considerable actual and potential waste in research. Using evidence-based research (EBR) can ensure the value of a new study. The aim of this article, the third in a series, is to describe an EBR approach to putting research results into context. STUDY DESIGN AND SETTING:EBR is the us...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2020.07.021
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVES:Core outcome set (COS) development often begins with a systematic review to identify outcomes. Reviews frequently show heterogeneity in numbers of outcomes reported across trials. Contributing to this is a lack of a uniform definition for an outcome. This study proposes a first working definition for a uniqu...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章
doi:10.1016/j.jclinepi.2019.06.016
更新日期:2019-11-01 00:00:00
abstract::Trialists argue about the usefulness of stratified randomization. For investigators designing trials and readers who use them, the argument has created uncertainty regarding the importance of stratification. In this paper, we review stratified randomization to summarize its purpose, indications, accomplishments, and a...
journal_title:Journal of clinical epidemiology
pub_type: 杂志文章,评审
doi:10.1016/s0895-4356(98)00138-3
更新日期:1999-01-01 00:00:00