Abstract：
:In replication of two recent studies, it was intended to show that headache symptoms obtained by means of questionnaires fit a categorial model, provided that appropriate methods of data analysis are used. In addition, the questions which are best posed to obtain a succinct classification should be determined. Configural frequency analysis (CFA) was applied to 7 answers for headache symptoms in 2 samples (n = 602 and 606). In both samples classification became more succinct when the symptoms taken into consideration were reduced to 5. Questions for the quality of pain (pulsating vs not pulsating) did not supply much information nor did the question about aggravation during physical activity in Sample I and for photophobia in Sample II enhance the succintness of the classification. Based on 5 symptoms, however, namely: (1) pain occurring in attacks; (2) unilaterality; (3) visual prodromi; (4) nausea/vomiting and (5) photophobia in Sample I, aggravation during physical activity in Sample II, CFA clearly revealed a few headache syndromes. They could easily be interpreted as migraine with aura, migraine without aura, and tension headaches. Combinations of both migraine and tension headache symptoms did not occur more often and sometimes less often than expected by chance.
journal_name
J Clin Epidemioljournal_title
Journal of clinical epidemiologyauthors
Köhler T,Eisentraut R,Graeber Edoi
10.1016/0895-4356(94)00182-psubject
Has Abstractpub_date
1995-06-01 00:00:00pages
797-803issue
6eissn
0895-4356issn
1878-5921pii
0895-4356(94)00182-Pjournal_volume
48pub_type
杂志文章abstract：:How well can hospital discharge abstracts be used to estimate patient health status? This paper compares information on comorbidity obtained from hospital discharge abstracts for patients undergoing prostatectomy or cholecystectomy at a Winnipeg teaching hospital with clinical data on preoperative medical conditions p...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(91)90050-j
更新日期：1991-01-01 00:00:00
abstract：:The degree of clinical agreement amongst different physicians on the presence or absence of generalized lymphadenopathy was assessed in 32 randomly selected participants from a prospective study of male sexual contacts of men with AIDS or an AIDS-related condition (ARC). Three physicians completed the same standard ex...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(88)90131-x
更新日期：1988-01-01 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：:In a clinical judgement analysis study, 27 general practitioners, 22 cardiologists, and 21 medical students assessed 40 case vignettes with regard to the probability of heart failure, in order to study the weights of different kinds of information (cues) measured by the regression coefficients in a multiple regression...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(00)00241-9
更新日期：2000-11-01 00:00:00
abstract：OBJECTIVE:For people with dementia, the concept of quality of life (Qol) reflects the disease's impact on the whole person. Thus, Qol is an increasingly used outcome measure in dementia research. This systematic review was performed to identify available dementia-specific Qol measurements and to assess the quality of l...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2015.08.002
更新日期：2016-02-01 00:00:00
abstract：OBJECTIVE:Correspondence analysis (CA) is a multivariate graphical technique designed to explore the relationships among categorical variables. Epidemiologists frequently collect data on multiple categorical variables with the goal of examining associations among these variables. Nevertheless, CA appears to be an under...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2009.08.008
更新日期：2010-06-01 00:00:00
abstract：:Health researchers commonly use logistic regression when profiling health providers. Data from the patients treated by the providers are used to construct models predicting the expected number of outcomes for providers and the ratio of observed to expected outcomes (O/E ratio) used as a risk-adjusted measure of provid...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(03)00048-9
更新日期：2003-06-01 00:00:00
abstract：:Scotland has one of the highest mortality rates from coronary heart disease for both men and women. However within Scotland there are major geographical differences in the mortality rates, exemplified by the differences between the two largest Scottish cities. Glasgow on the west has a much higher mortality rate for c...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(90)90033-l
更新日期：1990-01-01 00:00:00
abstract：:This paper reports a prospective study, carried out in elderly patients hospitalized for acute illness, designed to evaluate the effectiveness of medical treatment from the point of view of quality of life (QoL). Patient's autoperception and satisfaction with health, the most relevant subjective estimates of QoL, were...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(94)00237-k
更新日期：1995-08-01 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: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：:Indexes developed to measure physical functioning as an essential component of general health status are often based on sets of hierarchically-structured items intended to represent a broad underlying concept. Rasch Item Response Theory (IRT) provides a methodology to examine the hierarchical structure, unidimensional...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(94)90215-1
更新日期：1994-06-01 00:00:00
abstract：:In the Upper Bavarian Field Study a total of 1536 persons (15 years and older) were interviewed by research psychiatrists. 8.1% of all respondents took a psychotropic drug during the 7 days prior to the interview. The consumption rate among women was about three times as high as that for men. The use of psychotropic d...
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：OBJECTIVE:To validate the prognostic accuracy of a previously proposed comorbidity index using information of a different and separate population-based cohort. STUDY DESIGN AND SETTING:We assessed the predictive accuracy of a comorbidity index to predict mortality by looking at calibration and discrimination in the de...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2007.09.006
更新日期：2008-08-01 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：:Randomized trials are the optimal approach for evaluations of treatment efficacy but may not always be feasible. We study the adequacy of the case-control design in evaluating efficacy in a situation where the investigated therapy, namely the administration of magnesium sulfate for the prevention of eclampsia in patie...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(96)00421-0
更新日期：1997-04-01 00:00:00
abstract：OBJECTIVES:To investigate cost savings from and implications of replacing the single risk with a total cardiovascular risk approach in primary prevention of cardiovascular disease (CVD). STUDY DESIGN AND SETTING:A cost analysis using data from the 2007-08 Jamaica Health and Lifestyle Survey of 1,432 persons aged 40 ye...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2014.11.027
更新日期：2015-09-01 00:00:00
abstract：OBJECTIVE:Research on emotional distress and mortality has largely focused on depression in men and in elderly populations. We examined the relation between anxiety and mortality in women at midlife, adjusting for depression. STUDY DESIGN AND SETTING:At baseline, 5,073 healthy Dutch women aged 46-54 years (mean=50.4+/...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2008.08.006
更新日期：2009-04-01 00:00:00
abstract：:We studied the outcome in 308 patients with acute myocardial infarction (MI) admitted to the coronary care unit of Kobe General Hospital. Short-term outcome (within 28 days after MI) and long-term outcome (more than 28 days) were examined with survival curves to find any relationship with a history of previous MI and ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(92)90186-q
更新日期：1992-01-01 00:00:00
abstract：:Many longitudinal studies attempt to examine changes in outcome measures over time in groups of patients. Applying conventional analytic techniques, such as a single classical linear regression model, to these data will often not result in minimum variance estimates, and may affect the results of tests of significance...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/0895-4356(93)90038-3
更新日期：1993-07-01 00:00:00
abstract：OBJECTIVES:In a twinning partnership between the Canadian Society for International Health and Kazakhstan's Ministry of Health, a project to build capacity and a process for the adaptation and implementation of international clinical practice guidelines (CPGs) was undertaken. STUDY DESIGN AND SETTING:A pragmatic CPG a...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/j.jclinepi.2015.05.001
更新日期：2016-01-01 00:00:00
abstract：:Clinimetrics and psychometrics, two accepted methods for developing multiitem health measurement scales, have fundamentally different aims and methods that have seldom been compared and never prospectively. The purpose of this study was to determine whether these two methodologies provided comparable scales in the dev...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,多中心研究
doi：10.1016/s0895-4356(98)00148-6
更新日期：1999-02-01 00:00:00
abstract：OBJECTIVE:To assess the effects of abbreviated literature searches on evidence syntheses conclusions. STUDY DESIGN AND SETTING:We randomly selected 60 Cochrane reviews of clinical interventions and repeated literature searches using 14 abbreviated approaches (combinations of MEDLINE, Embase, CENTRAL with and without s...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,meta分析
doi：10.1016/j.jclinepi.2018.05.022
更新日期：2018-10-01 00:00:00
abstract：:The Busselton Survey is a population survey that is held about every three years. In 1994-1995 a re-survey was held of all past participants and 8,502 attended. Financial constraints precluded employing staff for data collection for blood pressure and anthropometry, these therefore were collected by unpaid lay volunte...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(01)00492-9
更新日期：2002-04-01 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：:Nonresponse and methods of data collection could affect satisfaction measurement. The goal of this study was to estimate the impact of (1) nonresponse and (2) distribution method on evaluation of patient satisfaction in a mail-back study measuring patient opinion of medical and nursing care. The study was conducted in...
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)00387-0
更新日期：2001-11-01 00:00:00
abstract：:Although the placebo in a clinical trial is often considered simply a baseline against which to evaluate the efficacy of a clinical intervention, there is evidence that the magnitude of placebo effect may be a critical factor in determining the results of a trial. This article examines the question of whether devices ...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/s0895-4356(00)00206-7
更新日期：2000-08-01 00:00:00
abstract：:This study developed and validated a multidimensional measure of dyspepsia. A questionnaire was administered to 126 patients with dyspepsia who presented for care at a VA outpatient clinic and a family physician's private office. Dyspepsia-specific health was measured by self-report using: (1) an existing dyspepsia sc...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章
doi：10.1016/s0895-4356(97)00245-x
更新日期：1998-02-01 00:00:00
abstract：OBJECTIVES:Procedures for controlling the false positive rate when performing many hypothesis tests are commonplace in health and medical studies. Such procedures, most notably the Bonferroni adjustment, suffer from the problem that error rate control cannot be localized to individual tests, and that these procedures d...
journal_title：Journal of clinical epidemiology
pub_type： 杂志文章,评审
doi：10.1016/j.jclinepi.2014.03.012
更新日期：2014-08-01 00:00:00
abstract：OBJECTIVES:To review James Jackson's analysis of bloodletting among pneumonitis patients at the newly founded Massachusetts General Hospital, in which he implemented the numerical method advocated by Pierre-Charles-Alexandre Louis. STUDY DESIGN AND SETTING:The study sample included 34 cases of clinically diagnosed pne...
journal_title：Journal of clinical epidemiology
pub_type： 传,历史文章,杂志文章
doi：10.1016/j.jclinepi.2014.10.013
更新日期：2015-04-01 00:00:00
