Dataset Information

Conceptualizing a model: a report of the ISPOR-SMDM Modeling Good Research Practices Task Force--2.

ABSTRACT: The appropriate development of a model begins with understanding the problem that is being represented. The aim of this article was to provide a series of consensus-based best practices regarding the process of model conceptualization. For the purpose of this series of articles, we consider the development of models whose purpose is to inform medical decisions and health-related resource allocation questions. We specifically divide the conceptualization process into two distinct components: the conceptualization of the problem, which converts knowledge of the health care process or decision into a representation of the problem, followed by the conceptualization of the model itself, which matches the attributes and characteristics of a particular modeling type with the needs of the problem being represented. Recommendations are made regarding the structure of the modeling team, agreement on the statement of the problem, the structure, perspective, and target population of the model, and the interventions and outcomes represented. Best practices relating to the specific characteristics of model structure and which characteristics of the problem might be most easily represented in a specific modeling method are presented. Each section contains a number of recommendations that were iterated among the authors, as well as among the wider modeling taskforce, jointly set up by the International Society for Pharmacoeconomics and Outcomes Research and the Society for Medical Decision Making.

SUBMITTER: Roberts M

PROVIDER: S-EPMC4207095 | biostudies-literature | 2012 Sep-Oct

REPOSITORIES: biostudies-literature

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Conceptualizing a model: a report of the ISPOR-SMDM Modeling Good Research Practices Task Force--2.

Roberts Mark M Russell Louise B LB Paltiel A David AD Chambers Michael M McEwan Phil P Krahn Murray M

Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research 20120901 6

The appropriate development of a model begins with understanding the problem that is being represented. The aim of this article was to provide a series of consensus-based best practices regarding the process of model conceptualization. For the purpose of this series of articles, we consider the development of models whose purpose is to inform medical decisions and health-related resource allocation questions. We specifically divide the conceptualization process into two distinct components: the ...[more]

PMID: 22999129

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Project description:ObjectiveSurvey vice chairs of research from academic radiology departments on the impact of COVID-19 on research activities.MethodsThe survey asked respondents to quantify changes in research performed during the shutdown and ramp-up, relative to pre-COVID-19 levels. Respondents estimated research activity changes by overall research type (wet, instrumentation, or core facilities; prospective non-COVID-19 clinical research and computational laboratories) and then by the research activity type (data analysis, grant or manuscript writing, clinician involvement, summer student participation, and international research fellow appointments).The χ2 test was used for comparison between shutdown and ramp-up, with Yates correction when necessary.ResultsOf 105 vice chairs contacted, 46 (43.8%) responded. For 95.5%, wet, instrumentation, or core facilities research decreased to ≤50% during shutdown and for 83.3% during ramp-up (P < .0001). In addition, 89.2% and 46.5% indicated reduction to ≤25% of non-COVID-19 clinical research during shutdown and ramp-up, respectively (P < .0001). Only computational research increased to 120% during shutdown (39.5%) or ramp-up (50%) (P = .8984). For data analysis from closed laboratories, 75% and 86% showed decreased activity during shutdown and ramp-up, respectively (P = .28). Increased grant writing during shutdown and ramp-up was reported by 45.5% and 23.3% (P = .093). For 52.3% and 23.3%, manuscript writing and submission increased during shutdown and ramp-up, respectively (P < .02). Clinician research involvement trended toward relative decreases during shutdown (84.1% versus 60.5%, P = .05). There was similar drop in summer student participation (shutdown: 86.4%, ramp-up: 83.7%, P = .95) and international researcher appointment (shutdown: 85.7%, ramp-up: 86.1%; P = .96).ConclusionMany radiology research activities diminished during the COVID-19 shutdown and to a lesser extent during the ramp-up. Activities that could be done remotely, such as computational analysis and grant and manuscript writing and submission, increased.

Dataset Information

Conceptualizing a model: a report of the ISPOR-SMDM Modeling Good Research Practices Task Force--2.

Publications

Conceptualizing a model: a report of the ISPOR-SMDM Modeling Good Research Practices Task Force--2.

Similar Datasets

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