Abstract：
OBJECTIVES:According to results from the epidemiological literature, it can be expected that the prevalence odds ratio (POR) and the prevalence ratio (PR) differ with increasing disease prevalence. We illustrate different concepts to calculate these effect measures in cross-sectional studies and discuss their advantages and weaknesses, using actual data from the ISAAC Phase III cross-sectional survey in Münster, Germany. METHODS:We analyzed data on the association between self-reported traffic density and wheeze and asthma by means of the POR, obtained from a logistic regression, and the PR, which was estimated from a log-linear binomial model and from different variants of a Poisson regression. RESULTS:The analysis based on the less frequent disease, i.e. asthma with an overall prevalence of 7.8%, yielded similar results for all estimates. When wheezing with a prevalence of 17.5% was analyzed, the POR produced the highest estimates with the widest confidence intervals. While the point estimates were similar in the log-binomial model and Poisson regression, the latter showed wider confidence intervals. When we calculated the Poisson regression with robust variances, confidence intervals narrowed. CONCLUSIONS:Since cross-sectional studies often deal with frequent diseases, we encourage analyzing cross-sectional data based on log-linear binomial models, which is the 'natural method' for estimating prevalence ratios. If algorithms fail to converge, a useful alternative is to define appropriate starting values or, if models still do not converge, to calculate a Poisson regression with robust estimates to control for overestimation of errors in the binomial data.
journal_name
Methods Inf Medjournal_title
Methods of information in medicineauthors
Behrens T,Taeger D,Wellmann J,Keil Ukeywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
505-9issue
5eissn
0026-1270issn
2511-705Xpii
04050505journal_volume
43pub_type
杂志文章abstract：OBJECTIVES:The authors' aim was to investigate the representations, wishes, and fears of family caregivers (FCs) regarding 14 innovative technologies (IT) for care aiding and burden alleviation, given the severe physical and psychological stress induced by dementia care, and the very slow uptake of these technologies i...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：INTRODUCTION:This article is part of a Focus Theme of METHODS of Information in Medicine on Health Record Banking. BACKGROUND:Poor communication of health care information between health care providers (HCP) is still a major problem. One recent approach is the concept of Health Record Banking. OBJECTIVES:With this re...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME13-02-0003
更新日期：2014-01-01 00:00:00
abstract：:A few years ago, a new method of survival analysis, denoted period analysis, has been developed to derive more up-to-date estimates of long-term survival rates of cancer patients, but this method has rarely been applied so far. Using empirical examples from the Saarland Cancer Registry, we illustrate how seriously tra...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2001-07-01 00:00:00
abstract：:In this paper the design and implementation of a decision support system for diabetes care is examined from an ethical perspective. It is noted that the system creates potential for enhancing the realization of the principle of autonomy through improved information to patients and participation by patients. However, t...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1999-12-01 00:00:00
abstract：OBJECTIVES:To provide a comprehensive bottom-up categorization of model-based segmentation techniques that allows to select, implement, and apply well-suited active contour models for segmentation of medical images, where major challenges are the high variability in shape and appearance of objects, noise, artifacts, pa...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:The PHOENIX Radiology Consultant is a rule-based expert system which assists physicians in planning radiological work-up strategies. This article describes the methods used to create and validate the system's knowledge base. The feasibility and acceptability of PHOENIX were tested for two years in a clinical trial. Du...
journal_title：Methods of information in medicine
pub_type： 临床试验,杂志文章
doi：
更新日期：1991-10-01 00:00:00
abstract：OBJECTIVES:The International Medical Informatics Association (IMIA) today is an inclusive organization that represents the medical and health informatics world through its multiple member countries as well as affiliate, corporate and academic institutions, plus working groups and regions. The IMIA leadership deemed thi...
journal_title：Methods of information in medicine
pub_type： 社论
doi：
更新日期：2006-01-01 00:00:00
abstract：:Surgical fluid replacement is a critical issue in medicine as the fluid volume excess or deficit can both complicate the patient's condition. Currently, the administration of fluid volume is carried out primarily based on the experience and expertise of the anaesthetist as there is no analytical method available to es...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：OBJECTIVES:To contribute a new perspective on recent investigations into the scientific foundations of medical informatics (MI) and bioinformatics (BI). To support efforts that could generate synergies and new research directions. METHODS:MI and BI are compared and contrasted from a philosophy of science perspective. ...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：OBJECTIVES:The purpose of this work is to develop a health information platform connecting most health facilities in the Rhône-Alpes region. The health platform called SIS-RA is used through a Web interface. An iconic interface is dedicated to the platform and presents information in a unique way for all users. METHOD...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：INTRODUCTION:This article is part of the focus theme of Methods of Information in Medicine on "Pervasive Intelligent Technologies for Health". BACKGROUND:This paper addresses the evaluation with hospital staff of an in-patient environment that supports patients, family, nursing staff and medical specialists during the...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME13-02-0032
更新日期：2014-01-01 00:00:00
abstract：INTRODUCTION:This article is part of the Focus Theme of METHODs of Information in Medicine on "Managing Interoperability and Complexity in Health Systems". BACKGROUND:SALUS project aims at building an interoperability platform and a dedicated toolkit to enable secondary use of electronic health records (EHR) data for ...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME13-02-0025
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVES:The huge amount of released medical apps prevents medical app users from believing that medical scientific societies and other accreditation bodies as well, have the resources and the power for assigning to any medical app a quality score. By the time being, any medical app user has to take the risks related...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME13-01-0093
更新日期：2014-01-01 00:00:00
abstract：:While natural language processing systems are beginning to see clinical use, it remains unclear whether they can be disseminated effectively through the health care community. MedLEE, a general-purpose natural language processor developed for Columbia-Presbyterian Medical Center, was compared to physicians' ability to...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:To display multidimensional laboratory measurements, Hoeke et al. (1991) proposed a technique that uses plotting axes radiating from a point, assigns each test to a separate axis, and links the test results with line segments. A special nonlinear scaling ensures that a patient whose results all fall in the normal rang...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:For use in system development, a method based on both qualitative and quantitative data was employed to study the difficulties--the dilemmas--a general practitioner (GP) faces during daily consultations. Video recordings were used for stimulated recall of the consultation. From 46 consultations, 262 dilemmas were iden...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：OBJECTIVES:Both open- and closed-loop models of beat-to-beat cardiovascular control have been suggested. We tested whether the modelling yields different results with real data while assessing cardiopulmonary and baroreflex gains. METHODS:Two autoregressive models are described to resolve causal relationships between ...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:Interim analyses are used in clinical trials in order to enable early decisions for medical, ethical, and economic reasons. However, it appears unfeasible to stop a trial during such an interim analysis. New patients will thus enter the trial while the interim analysis is ongoing. Moreover, depending on the ...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME14-02-0023
更新日期：2015-01-01 00:00:00
abstract：:A compartmental model for the simulation of in-vivo insulin-like growth factor one (IGF-I) kinetics and metabolism is presented. The model is based on the concept that IGF binding proteins (IGFBPs) act as a reservoir for IGF-I in plasma, thereby restricting its access to the extravascular space. The model is divided i...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1994-12-01 00:00:00
abstract：:This paper is concerned with a comparison of two broad classes of mathematical models, additive and multiplicative, for selecting the best among a number of competing project proposals addressed to a defined research objective. The analysis is predicated on the view that, though additive models are widely utilized, th...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1989-07-01 00:00:00
abstract：OBJECTIVE:Information systems integration is hard, especially when semantic and business process interoperability requirements need to be met. To succeed, a unified methodology, approaching different aspects of systems architecture such as business, information, computational, engineering and technology viewpoints, has...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME09-02-0012
更新日期：2010-01-01 00:00:00
abstract：OBJECTIVES:Empirical mode decomposition (EMD) is a frequently used signal processing approach which adaptively decomposes a signal into a set of narrow-band components known as intrinsic mode functions (IMFs). For multi-trial, multivariate (multiple simultaneous recordings), and multi-subject analyses the number and si...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME14-02-0024
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVES:As a preliminary for the design of Computer-Based Patient Records, the aim of this paper is to build an understanding of the roles physical artifacts like paper-based patient records play in supporting cognition and collaboration in the health-care settings. METHOD:A small ethnographically-informed study wa...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:The single leg squat (SLS) is a common lower limb rehabilitation exercise. It is also frequently used as an evaluative exercise to screen for an increased risk of lower limb injury. To date athlete / patient SLS technique has been assessed using expensive laboratory equipment or subjective clinical judgement...
journal_title：Methods of information in medicine
pub_type： 临床试验,杂志文章
doi：10.3414/ME16-02-0002
更新日期：2017-03-23 00:00:00
abstract：OBJECTIVE:The objective of this study is to develop a solution to preserve security and privacy in a healthcare environment where health-sensitive information will be accessed by many parties and stored in various distributed databases. The solution should maintain anonymous medical records and it should be able to lin...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/me9116
更新日期：2008-01-01 00:00:00
abstract：OBJECTIVES:The exchange of medical data from research and clinical routine across institutional borders is essential to establish an integrated healthcare platform. In this project we want to realize the standardized exchange of medical data between different healthcare institutions to implement an integrated and inter...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:Although arterial mechanical properties have been evaluated using arterial input impedance, the relative difficulty in accurate flow measurement made the value of impedance somewhat limited. To develop an alternative method to evaluate arterial mechanical properties, we analyzed the aortic pressure (AoP)-radial arteri...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1997-12-01 00:00:00
abstract：BACKGROUND:Radiology reports are a permanent record of patient's health information often used in clinical practice and research. Reading radiology reports is common for clinicians and radiologists. However, it is laborious and time-consuming when the amount of reports to be read is large. Assisting clinicians to locat...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.1055/s-0039-1694992
更新日期：2019-09-01 00:00:00
abstract：:Continuous recording of intraluminal pressures for extended periods of time is currently regarded as a valuable method for detection of esophageal motor abnormalities. A subsequent automatic analysis of the resulting motility data relies on strict mathematical criteria for recognition of pressure events. Due to great ...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：INTRODUCTION:This article is part of the Focus Theme of Methods of Information in Medicine on "Big Data and Analytics in Healthcare". BACKGROUND:Hospital readmissions raise healthcare costs and cause significant distress to providers and patients. It is, therefore, of great interest to healthcare organizations to pred...
journal_title：Methods of information in medicine
pub_type： 杂志文章
doi：10.3414/ME14-02-0017
更新日期：2015-01-01 00:00:00
