Page 52 of 52
As an increasingly large number of meta-analyses are published, quantitative methods are needed to help clinicians and systematic review teams determine when meta-analyses are not up to date.
Citation: BMC Medical Research Methodology 2003 3:13
It has been estimated that about 45% of abstracts that are accepted for presentation at biomedical meetings will subsequently be published in full. The acceptance of abstracts at meetings and their fate after ...
Citation: BMC Medical Research Methodology 2003 3:12
When evaluating cancer screening it is important to estimate the cumulative risk of false positives from periodic screening. Because the data typically come from studies in which the number of screenings varie...
Citation: BMC Medical Research Methodology 2003 3:11
Randomized trials stochastically answer the question. "What would be the effect of treatment on outcome if one turned back the clock and switched treatments in the given population?" Generalizations to other s...
Citation: BMC Medical Research Methodology 2003 3:10
All quantifications of mortality, morbidity, and other health measures involve numerous sources of error. The routine quantification of random sampling error makes it easy to forget that other sources of error...
Citation: BMC Medical Research Methodology 2003 3:9
Many randomized trials involve missing binary outcomes. Although many previous adjustments for missing binary outcomes have been proposed, none of these makes explicit use of randomization to bound the bias wh...
Citation: BMC Medical Research Methodology 2003 3:8
The Erratum to this article has been published in BMC Medical Research Methodology 2004 4:1
Randomised controlled clinical trials are performed to resolve uncertainty concerning comparator interventions. Appropriate acknowledgment of uncertainty enables the concurrent achievement of two goals : the a...
Citation: BMC Medical Research Methodology 2003 3:7
Phase II cancer studies are undertaken to assess the activity of a new drug or a new treatment regimen. Activity is sometimes defined in terms of a survival probability, a binary outcome such as one-year survi...
Citation: BMC Medical Research Methodology 2003 3:6
The Bayesian approach is one alternative for estimating correlation coefficients in which knowledge from previous studies is incorporated to improve estimation. The purpose of this paper is to illustrate the u...
Citation: BMC Medical Research Methodology 2003 3:5
Because randomized cancer screening trials are very expensive, observational cancer screening studies can play an important role in the early phases of screening evaluation. Periodic screening evaluation (PSE)...
Citation: BMC Medical Research Methodology 2003 3:4
Little work has been done to investigate the suggestion that the use of selected scales from a multi-scale health-status questionnaire would compromise reliability and validity. The aim of this study was to co...
Citation: BMC Medical Research Methodology 2003 3:3
The evaluation of abstracts for scientific meetings has been shown to suffer from poor inter observer reliability. A measure was developed to assess the formal quality of abstract submissions in a standardized...
Citation: BMC Medical Research Methodology 2003 3:2
Disease registers aim to collect information about all instances of a disease or condition in a defined population of individuals. Traditionally methods of operating disease registers have required that notifi...
Citation: BMC Medical Research Methodology 2003 3:1
Citation: BMC Medical Research Methodology 2002 2:16
The original article was published in BMC Medical Research Methodology 2001 1:11
Longitudinal studies with binary repeated outcomes are now widespread in epidemiology. The statistical analysis of these studies presents difficulties and standard methods are inadequate.
Citation: BMC Medical Research Methodology 2002 2:15
Frequent use of self-reports for investigating recent and past behavior in medical research requires statistical techniques capable of analyzing complex sources of bias associated with this methodology. In par...
Citation: BMC Medical Research Methodology 2002 2:14
If intervention A bests B in one randomized trial, and B bests C in another randomized trial, can one conclude that A is better than C? The problem was motivated by the planning of a randomized trial, where A ...
Citation: BMC Medical Research Methodology 2002 2:13
The Erratum to this article has been published in BMC Medical Research Methodology 2003 3:23
Medical researchers often need to share clinical data without violating patient confidentiality. Threshold cryptographic protocols divide messages into multiple pieces, no single piece containing information t...
Citation: BMC Medical Research Methodology 2002 2:12
The evaluation of randomized trials for cancer screening involves special statistical considerations not found in therapeutic trials. Although some of these issues have been discussed previously, we present im...
Citation: BMC Medical Research Methodology 2002 2:11
Meta-analysis is often considered to be a simple way to summarize the existing literature. In this paper we describe how a meta-analysis resembles a conventional study, requiring a written protocol with design...
Citation: BMC Medical Research Methodology 2002 2:10
Although guidelines for critical appraisal of diagnostic research and meta-analyses have already been published, these may be difficult to understand for clinical researchers or do not provide enough detailed ...
Citation: BMC Medical Research Methodology 2002 2:9
Readers may question the interpretation of findings in clinical trials when multiple outcome measures are used without adjustment of the p-value. This question arises because of the increased risk of Type I er...
Citation: BMC Medical Research Methodology 2002 2:8
The aim of this study was to examine the determinants of publication and whether publication bias occurred in gastroenterological research.
Citation: BMC Medical Research Methodology 2002 2:7
Language bias is a form of publication bias and constitutes a serious threat to meta-analyses. The Cochrane Controlled Trials Register is one attempt to remedy this and now contains more than 300,000 citations...
Citation: BMC Medical Research Methodology 2002 2:6
The study of cost-effectiveness comparisons between competing medical interventions has led to a variety of proposals for quantifying cost-effectiveness. The differences between the various approaches can be s...
Citation: BMC Medical Research Methodology 2002 2:5
Recently many long-term prospective studies have involved serial collection and storage of blood or tissue specimens. This has spurred nested case-control studies that involve testing some specimens for variou...
Citation: BMC Medical Research Methodology 2002 2:4
There is debate concerning methods for calculating numbers needed to treat (NNT) from results of systematic reviews.
Citation: BMC Medical Research Methodology 2002 2:3
To consider the problem of the calculation of number needed to treat (NNT) derived from risk difference, odds ratio, and raw pooled events shown to give different results using data from a review of nursing in...
Citation: BMC Medical Research Methodology 2002 2:2
Calculation of numbers needed to treat (NNT) is more complex from meta-analysis than from single trials. Treating the data as if it all came from one trial may lead to misleading results when the trial arms ar...
Citation: BMC Medical Research Methodology 2002 2:1
The Multicentre Project for Tuberculosis Research (MPTR) was a clinical-epidemiological study on tuberculosis carried out in Spain from 1996 to 1998. In total, 96 centres scattered all over the country partici...
Citation: BMC Medical Research Methodology 2001 1:14
The Digestive Diseases Week (DDW) is the major meeting for presentation of research in gastroenterology. The acceptance of an abstract for presentation at this meeting is the most important determinant of subs...
Citation: BMC Medical Research Methodology 2001 1:13
Response rates to surveys are declining and this threatens the validity and generalisability of their findings. We wanted to determine whether paper quality influences the response rate to postal surveys
Citation: BMC Medical Research Methodology 2001 1:12
Published formulas for case-control designs provide sample sizes required to determine that a given disease-exposure odds ratio is significantly different from one, adjusting for a potential confounder and pos...
Citation: BMC Medical Research Methodology 2001 1:11
To examine the effect of updating a systematic review of nicotine replacement therapy on its contents and conclusions.
Citation: BMC Medical Research Methodology 2001 1:10
Although a randomized trial represents the most rigorous method of evaluating a medical intervention, some interventions would be extremely difficult to evaluate using this study design. One alternative, an ob...
Citation: BMC Medical Research Methodology 2001 1:9
Acceptability curves have been proposed for quantifying the probability that a treatment under investigation in a clinical trial is cost-effective. Various definitions and estimation methods have been proposed...
Citation: BMC Medical Research Methodology 2001 1:8
We would expect information on adverse drug reactions in randomised clinical trials to be easily retrievable from specific searches of electronic databases. However, complete retrieval of such information may ...
Citation: BMC Medical Research Methodology 2001 1:7
Many randomized trials involve measuring a continuous outcome - such as pain, body weight or blood pressure - at baseline and after treatment. In this paper, I compare four possibilities for how such trials ca...
Citation: BMC Medical Research Methodology 2001 1:6
In order to assess the usefulness of radiolabeled white cell scanning in the diagnosis of intestinal inflammation, subjects were asked to rank several dimensions of preference for white cell scanning in relati...
Citation: BMC Medical Research Methodology 2001 1:5
We examined whether quarterly patient enrollment in a large multicenter clinical trials group could be modeled in terms of predictors including time parameters (such as long-term trends and seasonality), the e...
Citation: BMC Medical Research Methodology 2001 1:4
Guidelines published in major medical journals are very influential in determining clinical practice. It would be essential to evaluate whether conflicts of interests are disclosed in these publications. We ev...
Citation: BMC Medical Research Methodology 2001 1:3
To comprehend the results of a randomized controlled trial (RCT), readers must understand its design, conduct, analysis and interpretation. That goal can only be achieved through complete transparency from aut...
Citation: BMC Medical Research Methodology 2001 1:2
Meta-analysis usually restricts the information pooled, for instance using only randomised, double-blind, placebo-controlled trials. This neglects other types of high quality information. This review explores ...
Citation: BMC Medical Research Methodology 2001 1:1
Speed
79 days to first decision for reviewed manuscripts only
57 days to first decision for all manuscripts
196 days from submission to acceptance
19 days from acceptance to publication
Citation Impact
4.615- 2-year Impact Factor
5.260 - 5-year Impact Factor
2.262 - Source Normalized Impact per Paper (SNIP)
1.820 - SCImago Journal Rank (SJR)
Usage
3,218,958 Downloads
3,897 Altmetric mentions