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Respiratory Care Oct 2004A retrospective study uses existing data that have been recorded for reasons other than research. A retrospective case series is the description of a group of cases with...
A retrospective study uses existing data that have been recorded for reasons other than research. A retrospective case series is the description of a group of cases with a new or unusual disease or treatment. With a case-control study, cases with and without the condition of interest are identified, and the degree of exposure to a possible risk factor is then retrospectively compared between the 2 groups. With a matched case-control study, control subjects are selected such that they resemble (match) the cases with regards to certain characteristics (eg, age, comorbidity, severity of disease). Retrospective study designs are generally considered inferior to prospective study designs. Therefore, a retrospective study design should never be used when a prospective design is feasible.
Topics: Case-Control Studies; Epidemiologic Studies; Humans; Retrospective Studies
PubMed: 15447798
DOI: No ID Found -
Radiology Jan 2023
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Respiratory Care Dec 2022
Topics: Humans; Retrospective Studies; Oximetry; Oxygen
PubMed: 36442988
DOI: 10.4187/respcare.10654 -
Canadian Respiratory Journal 2009
Topics: Humans; Patient Readmission; Pulmonary Disease, Chronic Obstructive; Retrospective Studies
PubMed: 19707605
DOI: 10.1155/2009/704292 -
Journal of Orthopaedic Surgery (Hong... 2019
Topics: Femoral Fractures; Follow-Up Studies; Humans; Porosity; Retrospective Studies; Titanium
PubMed: 31645188
DOI: 10.1177/2309499019877522 -
Journal of Medicinal Chemistry May 2022One application area of computational methods in drug discovery is the automated design of small molecules. Despite the large number of publications describing methods... (Review)
Review
One application area of computational methods in drug discovery is the automated design of small molecules. Despite the large number of publications describing methods and their application in both retrospective and prospective studies, there is a lack of agreement on terminology and key attributes to distinguish these various systems. We introduce Automated Chemical Design (ACD) Levels to clearly define the level of autonomy along the axes of ideation and decision making. To fully illustrate this framework, we provide literature exemplars and place some notable methods and applications into the levels. The ACD framework provides a common language for describing automated small molecule design systems and enables medicinal chemists to better understand and evaluate such systems.
Topics: Drug Discovery; Prospective Studies; Retrospective Studies
PubMed: 35511951
DOI: 10.1021/acs.jmedchem.2c00334 -
The Oncologist Dec 2020This letter to the editor responds to questions about the results of the authors’ recently reported study of chemotherapy in inflammatory myofibroblastic tumors.
This letter to the editor responds to questions about the results of the authors’ recently reported study of chemotherapy in inflammatory myofibroblastic tumors.
Topics: Humans; Neoplasms; Retrospective Studies
PubMed: 32918787
DOI: 10.1002/ONCO.13518 -
Cirugia Pediatrica : Organo Oficial de... Apr 2022
Topics: Humans; Neoplasm Recurrence, Local; Retrospective Studies; Thyroglossal Cyst
PubMed: 35485751
DOI: 10.54847/cp.2022.02.11 -
Lakartidningen Sep 2021
Topics: Back Injuries; Humans; Retrospective Studies
PubMed: 34551115
DOI: No ID Found -
JPMA. the Journal of the Pakistan... Feb 2022To identify top 30 studies related to dental implant failures based on bibliometric analysis. (Review)
Review
OBJECTIVE
To identify top 30 studies related to dental implant failures based on bibliometric analysis.
METHODS
The bibliometric study was conducted at Aga Khan University, Karachi from April 2021 to June 2021 and comprised database search on Google Scholar used key words "dental implant failures" for studies published between 1990 and 2020. The selected studies were reviewed based on citation count for which the cut-off date was June 1, 2021.
RESULTS
The top 30 papers on dental implant failures had median citation count of 153 (range: 41-1583. Most of the studies were retrospective 11(36.7%), followed by literature reviews 6(20%). The top three contributing journals were the 'International Journal of Oral Maxillofacial Implants' 6(20%), the 'Clinical Oral Implants Research' 5(16.7%) and 'Clinical Implant Dentistry and Related Research' 3(10%). Goteborg University, Sweden, contributed the maximum number of most cited papers 8(26.7%).
CONCLUSIONS
Most of the papers in the top-cited on dental implant failures were retrospective studies, and there was only one clinical trial.
Topics: Bibliometrics; Dental Implants; Dental Restoration Failure; Humans; Retrospective Studies
PubMed: 35202375
DOI: 10.47391/JPMA.AKU-15