A systematic review to investigate the measurement properties of goal attainment scaling, towards use in drug trials.

abstract：BACKGROUND:Small number of clusters and large variation of cluster sizes commonly exist in cluster-randomized trials (CRTs) and are often the critical factors affecting the validity and efficiency of statistical analyses. F tests are commonly used in the generalized linear mixed model (GLMM) to test intervention effect...

journal_title：BMC medical research methodology

authors： Li P,Redden DT

更新日期：2015-04-23 00:00:00

abstract：BACKGROUND:When conducting a meta-analysis of a continuous outcome, estimated means and standard deviations from the selected studies are required in order to obtain an overall estimate of the mean effect and its confidence interval. If these quantities are not directly reported in the publications, they must be estima...

journal_title：BMC medical research methodology

authors： Kwon D,Reis IM

更新日期：2015-08-12 00:00:00

abstract：BACKGROUND:Sleeping under a long-lasting insecticidal net (LLIN) is recommended for all pregnant women in sub-Saharan Africa, due to the high prevalence of malaria infection and its associated complications in the region. Despite this, LLIN use has still remained sub-optimal among pregnant women in Maiduguri, Nigeria. ...

journal_title：BMC medical research methodology

authors： Balami AD,Said SM,Zulkefli NAM,Bachok N,Balami EL

更新日期：2019-07-18 00:00:00

abstract：BACKGROUND:Claims databases are generally considered inadequate for obesity research due to suboptimal capture of body mass index (BMI) measurements. This might not be true for bariatric surgery because of reimbursement requirements and changes in coding systems. We assessed the availability and validity of claims-base...

journal_title：BMC medical research methodology

authors： Li X,Lewis KH,Callaway K,Wharam JF,Toh S

更新日期：2020-09-07 00:00:00

abstract：BACKGROUND:Estimating costs is essential to the economic analysis of health care programs. Health care costs are often captured from administrative databases or by patient report. Administrative records only provide a partial representation of health care costs and have additional limitations. Patient-completed questio...

journal_title：BMC medical research methodology

authors： Pinto D,Robertson MC,Hansen P,Abbott JH

更新日期：2011-04-13 00:00:00

abstract：BACKGROUND:Chemotherapy is expected to reduce cancer deaths (CD), while possibly being harmful in terms of non-cancer deaths (NCD) because of toxicity. Peto's log-rank test is popular in the medical literature, but its operating characteristics are barely known. We compared this test to the most common ones in the stat...

journal_title：BMC medical research methodology

authors： Rotolo F,Michiels S

更新日期：2014-05-29 00:00:00

abstract：BACKGROUND:Diet plays an important role in chronic disease, and the use of dietary pattern analysis has grown rapidly as a way of deconstructing the complexity of nutritional intake and its relation to health. Pattern analysis methods, such as principal component analysis (PCA), have been used to investigate various di...

journal_title：BMC medical research methodology

authors： Zhang F,Tapera TM,Gou J

更新日期：2018-10-29 00:00:00

abstract：BACKGROUND:The choice between paper data collection methods and electronic data collection (EDC) methods has become a key question for clinical researchers. There remains a need to examine potential benefits, efficiencies, and innovations associated with an EDC system in a multi-center medical record review study. MET...

journal_title：BMC medical research methodology

authors： Thwin SS,Clough-Gorr KM,McCarty MC,Lash TL,Alford SH,Buist DS,Enger SM,Field TS,Frost F,Wei F,Silliman RA

更新日期：2007-06-18 00:00:00

abstract：BACKGROUND:Retaining participants in cohort studies with multiple follow-up waves is difficult. Commonly, researchers are faced with the problem of missing data, which may introduce biased results as well as a loss of statistical power and precision. The STROBE guidelines von Elm et al. (Lancet, 370:1453-1457, 2007); V...

journal_title：BMC medical research methodology

authors： Karahalios A,Baglietto L,Carlin JB,English DR,Simpson JA

更新日期：2012-07-11 00:00:00

abstract：BACKGROUND:Dichotomisation of continuous outcomes has been rightly criticised by statisticians because of the loss of information incurred. However to communicate a comparison of risks, dichotomised outcomes may be necessary. Peacock et al. developed a distributional approach to the dichotomisation of normally distribu...

journal_title：BMC medical research methodology

authors： Sauzet O,Ofuya M,Peacock JL

更新日期：2015-04-24 00:00:00

abstract：BACKGROUND:When discussing results medical research articles often tear substantive and statistical (methodical) contributions apart, just as if both were independent. Consequently, reasoning on bias tends to be vague, unclear and superficial. This can lead to over-generalized, too narrow and misleading conclusions, es...

journal_title：BMC medical research methodology

authors： Höfler M,Venz J,Trautmann S,Miller R

更新日期：2018-04-17 00:00:00

abstract：BACKGROUND:There is increasing awareness that meta-analyses require a sufficiently large information size to detect or reject an anticipated intervention effect. The required information size in a meta-analysis may be calculated from an anticipated a priori intervention effect or from an intervention effect suggested b...

journal_title：BMC medical research methodology

authors： Wetterslev J,Thorlund K,Brok J,Gluud C

更新日期：2009-12-30 00:00:00

abstract：BACKGROUND:The International Cancer Benchmarking Partnership aims to study international differences in cancer survival and the possible causes. Participating countries are Australia, Canada, Norway, Sweden, Denmark and the UK and a particular focus area is differences in awareness and beliefs about cancer. In this con...

journal_title：BMC medical research methodology

authors： Hvidberg L,Pedersen AF,Wulff CN,Carlsen AH,Vedsted P

更新日期：2017-04-26 00:00:00

abstract：BACKGROUND:This paper focuses on measuring the efficiency and effectiveness of two diagramming methods employed in key informant interviews with clinicians and health care administrators. The two methods are 'participatory diagramming', where the respondent creates a diagram that assists in their communication of answe...

journal_title：BMC medical research methodology

authors： Umoquit MJ,Dobrow MJ,Lemieux-Charles L,Ritvo PG,Urbach DR,Wodchis WP

更新日期：2008-08-08 00:00:00

abstract：BACKGROUND:Multiple imputation is frequently used to deal with missing data in healthcare research. Although it is known that the outcome should be included in the imputation model when imputing missing covariate values, it is not known whether it should be imputed. Similarly no clear recommendations exist on: the util...

journal_title：BMC medical research methodology

authors： Kontopantelis E,White IR,Sperrin M,Buchan I

更新日期：2017-01-09 00:00:00

abstract：BACKGROUND:Standard random-effects meta-analysis methods perform poorly when applied to few studies only. Such settings however are commonly encountered in practice. It is unclear, whether or to what extent small-sample-size behaviour can be improved by more sophisticated modeling. METHODS:We consider likelihood-based...

journal_title：BMC medical research methodology

authors： Seide SE,Röver C,Friede T

更新日期：2019-01-11 00:00:00

abstract：BACKGROUND:Posttraumatic growth is the positive change resulting from traumatic experiences and is typically assessed with retrospective measures like the Posttraumatic Growth Inventory (PTGI). The PTGI was designed to include reference to a specific traumatic event, making it difficult to implement, without change, in...

journal_title：BMC medical research methodology

authors： Kaur N,Porter B,LeardMann CA,Tobin LE,Lemus H,Luxton DD,Millennium Cohort Study Team.

更新日期：2017-04-20 00:00:00

abstract：BACKGROUND:Many medicines are dosed to achieve a particular therapeutic range, and monitored using therapeutic drug monitoring (TDM). The evidence base for a therapeutic range can be evaluated using systematic reviews, to ensure it continues to reflect current indications, doses, routes and formulations, as well as upd...

journal_title：BMC medical research methodology

authors： Cooney L,Loke YK,Golder S,Kirkham J,Jorgensen A,Sinha I,Hawcutt D

更新日期：2017-06-02 00:00:00

abstract：BACKGROUND:Emergency Departments (EDs) are a first point-of-contact for many youth with mental health and suicidality concerns and can serve as an effective recruitment source for randomized controlled trials (RCTs) of mental health interventions. However, recruitment in acute care settings is impeded by several challe...

journal_title：BMC medical research methodology

authors： Tracey M,Finkelstein Y,Schachter R,Cleverley K,Monga S,Barwick M,Szatmari P,Moretti ME,Willan A,Henderson J,Korczak DJ

更新日期：2020-09-14 00:00:00

abstract：BACKGROUND:In Routine Outcome Monitoring (ROM) there is a high demand for short assessments. Computerized Adaptive Testing (CAT) is a promising method for efficient assessment. In this article, the efficiency of a CAT version of the Mood and Anxiety Symptom Questionnaire, - Anhedonic Depression scale (MASQ-AD) for use ...

journal_title：BMC medical research methodology

authors： Smits N,Zitman FG,Cuijpers P,den Hollander-Gijsman ME,Carlier IV

更新日期：2012-01-10 00:00:00

abstract：BACKGROUND:Defeat and entrapment have been shown to be of central relevance to the development of different disorders. However, it remains unclear whether they represent two distinct constructs or one overall latent variable. One reason for the unclarity is that traditional factor analytic techniques have trouble estim...

journal_title：BMC medical research methodology

authors： Forkmann T,Teismann T,Stenzel JS,Glaesmer H,de Beurs D

更新日期：2018-01-25 00:00:00

abstract：BACKGROUND:Systematic reviewers seek to comprehensively search for relevant studies and summarize these to present the most valid estimate of intervention effectiveness. The more resources searched, the higher the yield, and thus time and costs required to conduct a systematic review. While there is an abundance of evi...

journal_title：BMC medical research methodology

authors： Crumley ET,Wiebe N,Cramer K,Klassen TP,Hartling L

更新日期：2005-08-10 00:00:00

abstract：BACKGROUND:Biomarkers of exposures such as infection or environmental chemicals can be measured in small volumes of blood extracted from newborn dried blood spots (DBS) underscoring their potential utility for population-based research. However, few studies have evaluated the feasibility and utility of this resource; p...

journal_title：BMC medical research methodology

authors： Yeung EH,Louis GB,Lawrence D,Kannan K,McLain AC,Caggana M,Druschel C,Bell E

更新日期：2016-02-04 00:00:00

abstract：BACKGROUND:For practical reasons it is not easy to obtain fasting samples in large population health surveys. Non-fasting triglyceride (Tg) values are difficult to interpret. The authors compared the accuracy of statistically corrected non-fasting Tg values with true fasting values and estimated the misclassification o...

journal_title：BMC medical research methodology

authors： Sundvall J,Leiviskä J,Laatikainen T,Peltonen M,Salomaa V,Vanhala M,Korpi-Hyövälti E,Lauronen J,Alfthan G

更新日期：2011-05-10 00:00:00

abstract：BACKGROUND:It is widely recognised that the pursuit of sustainable development cannot be accomplished without addressing inequality, or observed differences between subgroups of a population. Monitoring health inequalities allows for the identification of health topics where major group differences exist, dimensions of...

journal_title：BMC medical research methodology

authors： Hosseinpoor AR,Nambiar D,Schlotheuber A,Reidpath D,Ross Z

更新日期：2016-10-19 00:00:00

abstract：BACKGROUND:The Anglia Menorrhagia Education Study (AMES) is a randomized controlled trial testing the effectiveness of an education package applied to general practices. Binary data are available from two sources; general practitioner reported referrals to hospital, and referrals to hospital determined by independent a...

journal_title：BMC medical research methodology

authors： Nixon RM,Duffy SW,Fender GR

更新日期：2003-09-24 00:00:00

abstract：BACKGROUND:The aim of this study was to examine the relationship between mortality and statin adherence using two different approaches to adherence measurement (summary versus repeated-measures). METHODS:A retrospective cohort study was conducted using administrative data from Saskatchewan, Canada between 1994 and 200...

journal_title：BMC medical research methodology

authors： Alsabbagh MW,Eurich D,Lix LM,Wilson TW,Blackburn DF

更新日期：2017-04-20 00:00:00

abstract：BACKGROUND:Although a variety of instruments are available that capture stress experience, the assessment of chronic stress has been hindered by the lack of economical screening instruments. Recently, an English-language version of the Trier Inventory for Chronic Stress (TICS-EN) consisting of 57 items according to a s...

journal_title：BMC medical research methodology

authors： Petrowski K,Braehler E,Schmalbach B,Hinz A,Bastianon C,Ritz T

更新日期：2020-12-16 00:00:00

abstract：BACKGROUND:Diagnostic problems in clinical trials are sometimes ordinal. For example, colon tumor staging was performed according to the TNM classification. However, clinical data are limited by markedly small sample sizes in some stage. METHODS:We propose a distribution-free test for detecting ordered alternatives in...

journal_title：BMC medical research methodology

authors： Chang CH,Chin CC,Yu WW,Huang YY

更新日期：2013-12-05 00:00:00

abstract：BACKGROUND:Estimating the incidence of medical conditions using claims data often requires constructing a prevalence period that predates an event of interest, for instance the diagnosis of cancer, to exclude those with pre-existing conditions from the incidence risk set. Those conditions missed during the prevalence p...

journal_title：BMC medical research methodology

authors： Griffiths RI,O'Malley CD,Herbert RJ,Danese MD

更新日期：2013-03-06 00:00:00