Abstract:
BACKGROUND:The cause-of-death register at the Southern Urals Biophysics Institute (SUBI), Ozyorsk, Russia, was established to document the number and causes of deaths in the Mayak workers cohort, which includes all persons (N = 22,377) employed at Mayak nuclear facility between 1948 and 1982. Most workers were occupationally exposed to high doses of ionizing radiation and have been shown to have increased risks of various chronic diseases including cancer. OBJECTIVES:To investigate the quality of cause of death coding in the SUBI register. METHODS:A random sample of 246 deaths (~1% of the total) was coded independently at the SUBI and the Danish Cancer Society using the International Classification of Diseases 9 (ICD-9). Proportions of matching codes were calculated. RESULTS:Overall, 233 deaths (95%) were identically classified using the ICD-9 main category matching. Excluding mismatches that were considered to be incorrectly coded during validation, the validity of the register increased to 98%. Using the specific ICD-9 first three-digit matching, 182 deaths were identically coded (74%) and the respective validity of the register was 85%. There were also some non-resolvable discrepancies demonstrating limitations of assigning one code for each death or using language-adapted ICD-9 version. CONCLUSIONS:This validation study was an important quality check of a register used for mortality follow-up in a highly influential epidemiological study on radiation-related health effects. The results of the inter-institutional comparison were generally favourable; however, since the comparison revealed individual mismatches and some systematically differing coding practices, it is essential to repeat it on a regular basis in order to maintain a high quality.
journal_name
Methods Inf Medjournal_title
Methods of information in medicineauthors
Azizova TV,Fedirko V,Tsareva Y,Tretyakov F,Lassen CF,Friis S,Schüz Jdoi
10.3414/ME11-01-0049subject
Has Abstractpub_date
2012-01-01 00:00:00pages
144-9issue
2eissn
0026-1270issn
2511-705Xpii
11-01-0049journal_volume
51pub_type
杂志文章abstract:OBJECTIVES:Rule induction is one of the major methods of machine learning. Rule-based models can be easily read and interpreted by humans, that makes them particularly useful in survival studies as they can help clinicians to better understand analysed data and make informed decisions about patient treatment. Although ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME13-01-0046
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:(1) Creation of an expressive language for specification of temporal patterns in clinical domains, (2) Development of a graphical knowledge-acquisition tool allowing expert physicians to define meaningful domain-specific patterns, (3) Implementation of an interpreter capable of detecting such patterns in cli...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::In this paper we describe LIED (Liver: Information, Education and Diagnosis), a diagnostic expert system devoted to medical education in the field of hepatology. LIED combines the facilities of a traditional expert system for clinical diagnosis with several modules designed for educational purposes. The goal of such m...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1992-11-01 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::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::Informatisation of drug prescription is an important topic in medical informatics. For several years now, computerized drug databases have been implemented. Usually only a small part of the prescriptions can be stored in prescription systems because of the format of the included information; prescriptions contain esse...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1999-03-01 00:00:00
abstract:OBJECTIVES:a) To present a regional health care communication system developed in the North Karelia Hospital District with the help of two EU funded information technology projects namely the TERVE project (1) which was implemented at the national level financed by the regional subsidy 6 of the ERDF and the CHIN projec...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::Human event-related potentials reflect cognitive processing, and are normally elicited by external events, such as acoustic sounds or visual stimuli. As such they provide an opportunity to study normal and abnormal brain function noninvasively, at sub-second resolution. Advances in multimedia technology permit special...
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::This article is part of a For-Discussion-Section of Methods of Information in Medicine about the paper "Computational Electrocardiography: Revisiting Holter ECG Monitoring" written by Thomas M. Deserno and Nikolaus Marx. It is introduced by an editorial. This article contains the combined commentaries invited to indep...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME15-15-0009
更新日期:2016-08-05 00:00:00
abstract:BACKGROUND:The International Classification of Functioning, Disability and Health (ICF) has been available as a means of coding life functions but the coding process is cumbersome due to the large number of ICF codes. In the current study, we developed ICF code selection tools to support the coding of activity and part...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME10-01-0062
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVES:The log-binomial model is recommended for calculating the prevalence ratio in cross-sectional studies with binary outcomes. However, convergence problems may occur as this model is numerically unstable. If this happens, the Poisson model should be used, but the Poisson model variance needs to be adjusted. He...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.1160/me0416
更新日期:2007-01-01 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::A Bayesian decision support system was developed for the diagnosis of rheumatic disorders. Knowledge in this system is represented as evidential weights of findings. Simple weights were calculated as the logarithm of likelihood ratios on the basis of 1,000 consecutive patients from a rheumatological clinic. The effect...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1991-08-01 00:00:00
abstract::In this study, we attempted to discriminate the acceleration signal for horizontal level and stairway walking using wavelet-based fractal analysis method. The acceleration signal was measured close to the center of gravity of the body, while the subjects walked continuously in the corridor and up and down the stairs. ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract:OBJECTIVES:Combination of multiple testing and modeling techniques in dose-response studies. Use of hypotheses tests to assess the significance of the dose-response signal associated with a given candidate dose-response model. Estimation of target dose(s) following the previous model selection step. Illustration of the...
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::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::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::It is estimated that, in Japan, several million people suffer from urinary incontinence caused by, e.g., cerebrovascular disease, abdominal operations, spinal-cord damage, etc. Urinary incontinence is said to be a 'hidden' disease. When no adequate treatment is given, a serious situation may arise for both patients an...
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:OBJECTIVES:Cerebral ventricular volume has the potential to become an important parameter in quantitative neurological diagnosis. However, no accepted methodology for routine clinical use exists to date. We sought a robust, reproducible, and fast technique to evaluate cerebral ventricular volume in young children. MET...
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:INTRODUCTION:This article is part of the Focus Theme of Methods of Information in Medicine on "Biosignal Interpretation: Advanced Methods for Studying Cardiovascular and Respiratory Systems". BACKGROUND:Adaptation of the QT-interval to changes in heart rate reflects on the body-surface electrocardiogram the adaptation...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME13-02-0039
更新日期:2014-01-01 00:00:00
abstract::This paper tries to compare six Health Informatics/Medical Informatics (HI/MI) programs by a number of attributes in standardized form. The different programs and their curricula were summarized at the 5th IMIA Working Conference on HI/MI Education at Heidelberg/Heilbronn. The presentation is condensed to a synoptical...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1994-06-01 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:BACKGROUND:Multi-class molecular cancer classification has great potential clinical implications. Such applications require statistical methods to accurately classify cancer types with a small subset of genes from thousands of genes in the data. OBJECTIVES:This paper presents a new functional gradient descent boosting...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME11-02-0020
更新日期:2012-01-01 00:00:00
abstract::Reliable record linkage is a prerequisite for high-quality population-based disease registration. Rapid developments in computer processing have made record linkage both more efficient and more reliable in recent years. At the same time, concerns about confidentiality increasingly hinder record linkage in many disease...
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:OBJECTIVE:The purpose of this study was to investigate the effects of hybrid environments (i.e. where part of the patient record is paper-based and part of it is electronic) upon aspects of novice nurse information seeking (i.e. amount of information accessed, choice of key information sources, type of information and ...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME9222
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:To discuss the advantages and disadvantages of an interfaced approach to clinical information systems architecture. METHODS:After many years of internally building almost all components of a hospital clinical information system (HELP) at Intermountain Health Care, we changed our architectural approach as we...
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 use of computers in the health sector has increased significantly during the last few years in Nigeria. This paper addresses the integration of health and informatics education, or health education and informatics education, or informatics education in health care delivery. It gives an introduction to the status o...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVES:Hospital information systems (HIS) are the hospital's nervous system. The HIS are mostly grown over several years, dedicated to specific needs and comprise individual workarounds. Changes to such complex systems may cause a variety of differ-ent negative side-effects. In order to understand the nature of inc...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME9220
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVES:To assess the effects of a CPOE system on inter-professional workflow in the medication process. METHODS:Twenty-three semi-structured interviews with physicians, nurses, and pharmacists were conducted in a Dutch academic hospital. In addition, the handwritten and system-generated documents used daily were c...
journal_title:Methods of information in medicine
pub_type: 杂志文章
doi:10.3414/ME0631
更新日期:2010-01-01 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