Search

Your search keyword '"Waffenschmidt, Siw"' showing total 172 results
Start Over Author "Waffenschmidt, Siw"
172 results on '"Waffenschmidt, Siw"'

1. World Allergy Organization (WAO) Diagnosis and Rationale for Action against Cow's Milk Allergy (DRACMA) guideline update – XI – Milk supplement/replacement formulas for infants and toddlers with CMA – Systematic review

Author

Bognanni, Antonio, Firmino, Ramon T., Arasi, Stefania, Chu, Derek K., Chu, Alexandro W.L., Waffenschmidt, Siw, Agarwal, Arnav, Dziechciarz, Piotr, Horvath, Andrea, Mihara, Hanako, Roldan, Yetiani, Terracciano, Luigi, Martelli, Alberto, Starok, Anna, Said, Maria, Shamir, Raanan, Ansotegui, Ignacio J., Dahdah, Lamia, Ebisawa, Motohiro, Galli, Elena, Kamenwa, Rose, Lack, Gideon, Li, Haiqi, Pawankar, Ruby, Warner, Amena, Wong, Gary Wing Kin, Bozzola, Martin, Assa'Ad, Amal, Dupont, Christophe, Bahna, Sami, Spergel, Jonathan, Venter, Carina, Szajewska, Hania, Nowak-Wegrzyn, Anna H., Vandenplas, Yvan, Papadopoulos, Nikolaos G., Waserman, Susan, Fiocchi, Alessandro, Schünemann, Holger J., and Brożek, Jan L.

Published
2024
Full Text
View/download PDF

2. World Allergy Organization (WAO) Diagnosis and Rationale for Action against Cow's Milk Allergy (DRACMA) guideline update – XII – Recommendations on milk formula supplements with and without probiotics for infants and toddlers with CMA

Author

Bognanni, Antonio, Fiocchi, Alessandro, Arasi, Stefania, Chu, Derek K., Ansotegui, Ignacio, Assa'ad, Amal H., Bahna, Sami L., Berni Canani, Roberto, Bozzola, Martin, Dahdah, Lamia, Dupont, Christophe, Dziechciarz, Piotr, Ebisawa, Motohiro, Firmino, Ramon T., Chu, Alexandro, Galli, Elena, Horvath, Andrea, Kamenwa, Rose, Lack, Gideon, Li, Haiqi, Martelli, Alberto, Nowak-Węgrzyn, Anna, Papadopoulos, Nikolaos G., Pawankar, Ruby, Roldan, Yetiani, Said, Maria, Sánchez-Borges, Mario, Shamir, Raanan, Spergel, Jonathan M., Szajewska, Hania, Terracciano, Luigi, Vandenplas, Yvan, Venter, Carina, Waffenschmidt, Siw, Waserman, Susan, Warner, Amena, Wong, Gary W.K., Schünemann, Holger J., and Brozek, Jan L.

Published
2024
Full Text
View/download PDF

4. World Allergy Organization (WAO) Diagnosis and Rationale for Action against Cow's Milk Allergy (DRACMA) guideline update – XIII – Oral immunotherapy for CMA – Systematic review

Author

Ansotegui, Ignacio J., Arasi, Stefania, Assa'ad, Amal H., Bahna, Sami L., Canani, Roberto Berni, Bognanni, Antonio, Bozzola, Martin, Brozek, Jan, Chu, Derek K., Dahdah, Lamia, Dupont, Christophe, Ebisawa, Motohiro, Fiocchi, Alessandro, Firmino, Ramon Targino, Galli, Elena, Kamenwa, Rose, Lack, Gideon, Li, Haiqi, Martelli, Alberto, Nowak-Wegrzyn, Anna H., Papadopoulos, Nikolaos G., Pawankar, Ruby, Said, Maria, Sánchez-Borges, Mario, Schünemann, Holger J., Shamir, Raanan, Spergel, Jonathan M., Szajewska, Hania, Terracciano, Luigi, Vandenplas, Yvan, Venter, Carina, Warner, Amena, Waserman, Susan, Wong, GaryW.K., Firmino, Ramon T., Waffenschmidt, Siw, Agarwal, Arnav, Dziechciarz, Piotr, Horvath, Andrea, Jebai, Rime, Mihara, Hanako, Roldan, Yetiani, Bahna, Sami, and Brożek, Jan L.

Published
2022
Full Text
View/download PDF

5. Analytical frameworks in colorectal cancer guidelines: development of methods for systematic reviews, their application and practical guidance for their use

Author

Karam, Samer G., Darzi, Andrea J., Bognanni, Antonio, Morsi, Rami Z., Tannous, Elie E., Charide, Rana, Choe, Se-In, Stalteri, Rosa, Lee, Yung, Piggott, Thomas, Jewell, Laura, Schünemann, Finn, Langendam, Miranda, Parmelli, Elena, Saz-Parkinson, Zuleika, Roi, Annett, Vilahur, Nadia, Vali, Yasaman, Waffenschmidt, Siw, Owens, Douglas K., Leontiadis, Grigorios I., Moayyedi, Paul, Brozek, Jan L., and Schünemann, Holger J.

Published
2022
Full Text
View/download PDF

6. World Allergy Organization (WAO) Diagnosis and Rationale for Action against Cow’s Milk Allergy (DRACMA) Guideline update – XIV – Recommendations on CMA immunotherapy

Author

Brozek, Jan L., Firmino, Ramon T., Bognanni, Antonio, Arasi, Stefania, Ansotegui, Ignacio, Assa'ad, Amal H., Bahna, Sami L., Canani, Roberto Berni, Bozzola, Martin, Chu, Derek K., Dahdah, Lamia, Dupont, Christophe, Dziechciarz, Piotr, Ebisawa, Motohiro, Galli, Elena, Horvath, Andrea, Kamenwa, Rose, Lack, Gideon, Li, Haiqi, Martelli, Alberto, Nowak-Węgrzyn, Anna, Papadopoulos, Nikolaos G., Pawankar, Ruby, Roldan, Yetiani, Said, Maria, Sánchez-Borges, Mario, Shamir, Raanan, Spergel, Jonathan M., Szajewska, Hania, Terracciano, Luigi, Vandenplas, Yvan, Venter, Carina, Waffenschmidt, Siw, Waserman, Susan, Warner, Amena, Wong, Gary W.K., Fiocchi, Alessandro, and Schünemann, Holger J.

Published
2022
Full Text
View/download PDF

7. Development and Validation of Study Filters for Identifying Controlled Non-Randomized Studies in PubMed and Ovid MEDLINE

Author

Waffenschmidt, Siw, Navarro-Ruan, Tamara, Hobson, Nick, Hausner, Elke, Sauerland, Stefan, and Haynes, R. Brian

Abstract

A retrospective analysis published by the German Institute for Quality and Efficiency in Health Care (IQWiG) in 2018 concluded that no filter for non-randomized studies (NRS) achieved sufficient sensitivity ([greater than or equal to] 92%), a precondition for comprehensive information retrieval. New NRS filters are therefore required, taking into account the challenges related to this study type. Our evaluation focused on the development of study filters for NRS with a control group ("controlled NRS"), as this study type allows the calculation of an effect size. In addition, we assumed that due to the more explicit search syntax, controlled NRS are easier to identify than non-controlled ones, potentially resulting in better performance measures of study filters for controlled NRS. Our aim was to develop study filters for identifying controlled NRS in PubMed and Ovid MEDLINE. We developed two new search filters that can assist clinicians and researchers in identifying controlled NRS in PubMed and Ovid MEDLINE. The reference set was based on 2110 publications in Medline extracted from 271 Cochrane reviews and on 4333 irrelevant references. The first filter maximizes sensitivity (92.42%; specificity 79.67%, precision 68.49%) and should be used when a comprehensive search is needed. The second filter maximizes specificity (92.06%; precision 82.98%, sensitivity 80.94%) and should be used when a more focused search is sufficient.

Published
2020
Full Text
View/download PDF

14. Searches for Randomized Controlled Trials of Drugs in MEDLINE and EMBASE Using Only Generic Drug Names Compared with Searches Applied in Current Practice in Systematic Reviews

Author

Waffenschmidt, Siw and Guddat, Charlotte

Abstract

Background: It is unclear which terms should be included in bibliographic searches for randomized controlled trials (RCTs) of drugs, and identifying relevant drug terms can be extremely laborious. The aim of our analysis was to determine whether a bibliographic search using only the generic drug name produces sufficient results for the generation of informative systematic reviews (SRs). Methods: We conducted a retrospective analysis of relevant references included in SRs of drugs. We determined the proportion of references identified by a simplified technique consisting of a systematic search for RCTs in MEDLINE and EMBASE via the search interface Ovid and using only the truncated generic drug name in all search fields. We calculated aggregated sensitivity and also evaluated the unidentified references. Results: Forty-eight SRs contained 873 primary publications, of which we found 829 in MEDLINE and 757 in EMBASE ("gold standard"). The simplified search identified 823 of the 829 MEDLINE references (sensitivity 99.3%) and 754 of the 757 EMBASE references (99.6%). Ultimately, only three references could not be found by additional searches. Conclusion: Our findings indicate that when searching for RCTs of drugs in MEDLINE and EMBASE, a search using the truncated generic drug name in all fields produces sufficient results.

Published
2015
Full Text
View/download PDF

19. Implementation of a text analysis process using R for search strategy development in systematic reviews: Protocol

Author

Kapp, Claudia, Fujita-Rohwerder, Naomi, Sieben, Wiebke, Waffenschmidt, Siw, and Hausner, Elke

Subjects
Programming Languages, Information Storage and Retrieval, Databases, Bibliographic
Abstract

A systematic review is based on comprehensive information retrieval. One of the main tasks in information retrieval is the development of search strategies for systematic literature searches in bibliographic databases. This includes the identification of free-text terms and keywords. The methods for developing search strategies applied by the German health technology assessment agency, the Institute for Quality and Efficiency in Health Care (IQWiG) [1,2] are based on established methods for developing and validating study filters [3]. The text analysis software Wordstat is used for search strategy development, but the actual development of a strategy is still iterative, i.e. subjective, due to a lack of technical options. To further refine the objective approach, the aim of our project is to develop a text analysis tool for search strategy development using the programming language “R”. To this end, we will take the following steps: The first will be to define the core functions required for search strategy development. In a second step, we will identify existing R packages that are suitable to form the basis of the functions required for our package. We will then identify gaps that cannot be filled by existing packages and create the code to provide the required functions. The next step is to compile all functions to Version 1.0 of the package, including evaluation of the R package and subsequent creation of a graphical user interface (“Shiny App”). Subsequently, further development is planned of additional functions for the R package in a version 2.0 as a proof of concept.

Published
2023
Full Text
View/download PDF

22. Clinical-Trials-Information-System – was erwartet uns beim neuen europäischen Informationssystem für klinische Prüfungen?

Author

Felgenträger, Katja, Sow, Dorothea, Hausner, Elke, and Waffenschmidt, Siw

Subjects
Medicine and health
Abstract

Beschreibung: Am 31. Januar 2022 ist die Verordnung (EU) Nr. 536/2014 für klinische Prüfungen für Humanarzneimitteln in Kraft getreten. Mit der Verordnung werden die Einreichungs-, Bewertungs- und Überwachungsverfahren für klinische Prüfungen in der EU über das [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2022
Full Text
View/download PDF

23. PRISMA-S Draft

Author

Rethlefsen, Melissa, Ayala, Ana, Kirtley, Shona, Koffel, Jonathan, and Waffenschmidt, Siw

Subjects
search strategies, systematic reviews, PRISMA, literature searching, reporting guideline
Abstract

Historical drafts of PRISMA-S.

Published
2022
Full Text
View/download PDF

24. Informationsmanagement und Evidenzsynthesen nach der Pandemie – ein Symposium organisiert vom Fachbereich Informationsmanagement

Author

Euler, Ulrike, Sommer, Isolde, Waffenschmidt, Siw, Nussbaumer-Streit, Barbara, Klerings, Irma, Iannizzi, Claire, and Skoetz, Nicole

Subjects
Medicine and health
Abstract

Beschreibung: Im Zuge der Corona-Pandemie kam es zu methodischen Weiterentwicklungen in der evidenzbasierten Medizin. Nicht peer-reviewte Studien waren plötzlich zu Hauf auf Pre-Print-Servern zu finden und wurden in Evidenzsynthesen eingeschlossen. Anstatt umfassender Systematischer Reviews wurden [zum vollständigen Text gelangen Sie über die oben angegebene URL]

Published
2022
Full Text
View/download PDF

25. PRISMA-S: PRISMA Search Reporting Extension

Author

Rethlefsen, Melissa, Ayala, Ana, Kirtley, Shona, Koffel, Jonathan, and Waffenschmidt, Siw

Subjects
search strategies, systematic reviews, PRISMA, literature searching, reporting guideline
Abstract

Extension to PRISMA Statement for literature search reporting

Published
2022
Full Text
View/download PDF

28. World Allergy Organization (WAO) Diagnosis and Rationale for Action against Cow's Milk Allergy (DRACMA) guideline update – XIII – Oral immunotherapy for CMA – Systematic review

Author

Bognanni, Antonio, primary, Chu, Derek K., additional, Firmino, Ramon T., additional, Arasi, Stefania, additional, Waffenschmidt, Siw, additional, Agarwal, Arnav, additional, Dziechciarz, Piotr, additional, Horvath, Andrea, additional, Jebai, Rime, additional, Mihara, Hanako, additional, Roldan, Yetiani, additional, Said, Maria, additional, Shamir, Raanan, additional, Bozzola, Martin, additional, Bahna, Sami, additional, Fiocchi, Alessandro, additional, Waserman, Susan, additional, Schünemann, Holger J., additional, Brożek, Jan L., additional, Ansotegui, Ignacio J., additional, Assa'ad, Amal H., additional, Bahna, Sami L., additional, Canani, Roberto Berni, additional, Bognanni, Antonio, additional, Brozek, Jan, additional, Dahdah, Lamia, additional, Dupont, Christophe, additional, Ebisawa, Motohiro, additional, Firmino, Ramon Targino, additional, Galli, Elena, additional, Kamenwa, Rose, additional, Lack, Gideon, additional, Li, Haiqi, additional, Martelli, Alberto, additional, Nowak-Wegrzyn, Anna H., additional, Papadopoulos, Nikolaos G., additional, Pawankar, Ruby, additional, Sánchez-Borges, Mario, additional, Spergel, Jonathan M., additional, Szajewska, Hania, additional, Terracciano, Luigi, additional, Vandenplas, Yvan, additional, Venter, Carina, additional, Warner, Amena, additional, and Wong, GaryW.K., additional

Published
2022
Full Text
View/download PDF

31. Getting started with coding skills and automation in information retrieval - discussing two examples from the UK and Germany

Author

Walsh, Nicola, Spring, Marion, Kapp, Claudia, Hausner, Elke, and Waffenschmidt, Siw

Subjects
ddc: 610, Medicine and health, information retrieval, automation
Abstract

The work of information specialists will change significantly in the next few years. New technologies will lead to improving or transforming existing processes in information services teams. The key here is to recognize the potential improvements and become an active part of the digital transformation. [for full text, please go to the a.m. URL]

Published
2022
Full Text
View/download PDF

32. First steps towards an R-based tool to support the development of search strategies for systematic reviews

Author

Fujita-Rohwerder, Naomi, Kapp, Claudia, Hausner, Elke, and Waffenschmidt, Siw

Subjects
ddc: 610, Medicine and health, text and data mining, literature search
Abstract

Introduction: Information retrieval plays an essential role during the conduct of any systematic review and involves the development of search strategies to allow for a comprehensive search of the literature. Here, an objective approach is increasingly used to identify candidate search terms from a [for full text, please go to the a.m. URL]

Published
2022

34. Search strategy development at a German Health Technology Assessment agency: our experience with R from an end user perspective

Author

Waffenschmidt, Siw and Hausner, Elke

Subjects
meta-analysis, ESMARConf2022, evidence synthesis, Rstats
Abstract

IQWiG is a German health technology assessment (HTA) agency that has been using text mining tools to develop search strategies for bibliographic databases for more than 10 years. Originally we used the package tm in R for this purpose. We will describe the features we used and how we used them; we will also discuss why we have switched to a commercial tool for text analysis in the meantime and why we are currently looking for a new solution. In addition, we will summarize our requirements and explain which functions we think a new tool could have that go beyond simple text analysis.

Published
2022
Full Text
View/download PDF

36. Wie wollen wir zukünftig publizieren? Erfahrungsaustausch und neue Möglichkeiten

Author

Hausner, Elke, Waffenschmidt, Siw, and Schmitz, Jasmin

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Beschreibung: Das Publizieren in (gedruckten) Fachzeitschriften war lange Zeit der gängige Weg, um neues Wissen zu veröffentlichen und somit mit der Fachwelt in Austausch zu treten. In den letzten Jahren haben sich durch neue technische Möglichkeiten andere Publikationswege etabliert.[zum vollständigen Text gelangen Sie über die oben angegebene URL], Who cares? – EbM und Transformation im Gesundheitswesen; 22. Jahrestagung des Deutschen Netzwerks Evidenzbasierte Medizin

Published
2021

40. Rapid reviews methods series: Guidance on literature search

Author

Klerings, Irma, Robalino, Shannon, Booth, Andrew, Escobar-Liquitay, Camila Micaela, Sommer, Isolde, Gartlehner, Gerald, Devane, Declan, and Waffenschmidt, Siw

Abstract

This paper is part of a series of methodological guidance from the Cochrane Rapid Reviews Methods Group. Rapid reviews (RR) use modified systematic review methods to accelerate the review process while maintaining systematic, transparent and reproducible methods. In this paper, we address considerations for RR searches. We cover the main areas relevant to the search process: preparation and planning, information sources and search methods, search strategy development, quality assurance, reporting, and record management. Two options exist for abbreviating the search process: (1) reducing time spent on conducting searches and (2) reducing the size of the search result. Because screening search results is usually more resource-intensive than conducting the search, we suggest investing time upfront in planning and optimising the search to save time by reducing the literature screening workload. To achieve this goal, RR teams should work with an information specialist. They should select a small number of relevant information sources (eg, databases) and use search methods that are highly likely to identify relevant literature for their topic. Database search strategies should aim to optimise both precision and sensitivity, and quality assurance measures (peer review and validation of search strategies) should be applied to minimise errors.

Published
2023
Full Text
View/download PDF

46. Additional file 2 of Combining abbreviated literature searches with single-reviewer screening: three case studies of rapid reviews

Author

Affengruber, Lisa, Wagner, Gernot, Waffenschmidt, Siw, Lhachimi, Stefan K., Nussbaumer-Streit, Barbara, Thaler, Kylie, Griebler, Ursula, Klerings, Irma, and Gartlehner, Gerald

Subjects
InformationSystems_INFORMATIONSTORAGEANDRETRIEVAL, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, ComputingMilieux_COMPUTERSANDEDUCATION, Data_FILES, ComputerApplications_COMPUTERSINOTHERSYSTEMS
Abstract

Additional file 2. Supplementary tables

Published
2020
Full Text
View/download PDF

48. Was nützt uns die Automatisierung bei der Erstellung von Evidenzsynthesen?

Author

Waffenschmidt, Siw, Pieper, Dawid, Thomas, James, and Metzendorf, Maria-Inti

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Kurze Beschreibung des geplanten Inhalts: Die systematische Sichtung, Aufarbeitung und Zusammenfassung von Literatur zur Evidenzgenerierung enthält einige repetitive Tätigkeiten. Zugleich sind aber die Anforderungen im Hinblick auf Transparenz des Vorgehens und Zuverlässigkeit sehr hoch.[zum vollständigen Text gelangen Sie über die oben angegebene URL], EbM und Digitale Transformation in der Medizin; 20. Jahrestagung des Deutschen Netzwerks Evidenzbasierte Medizin

Published
2019

49. Development and validation of study filters for identifying controlled non-randomized studies inPubMedand OvidMEDLINE

Author

Waffenschmidt, Siw, Navarro-Ruan, Tamara, Hobson, Nick, Hausner, Elke, Sauerland, Stefan, Haynes, R. Brian, Waffenschmidt, Siw, Navarro-Ruan, Tamara, Hobson, Nick, Hausner, Elke, Sauerland, Stefan, and Haynes, R. Brian

Abstract

A retrospective analysis published by the German Institute for Quality and Efficiency in Health Care (IQWiG) in 2018 concluded that no filter for non-randomized studies (NRS) achieved sufficient sensitivity (>= 92%), a precondition for comprehensive information retrieval. New NRS filters are therefore required, taking into account the challenges related to this study type. Our evaluation focused on the development of study filters for NRS with a control group (controlled NRS), as this study type allows the calculation of an effect size. In addition, we assumed that due to the more explicit search syntax, controlled NRS are easier to identify than non-controlled ones, potentially resulting in better performance measures of study filters for controlled NRS. Our aim was to develop study filters for identifying controlled NRS in PubMed and Ovid MEDLINE. We developed two new search filters that can assist clinicians and researchers in identifying controlled NRS in PubMed and Ovid MEDLINE. The reference set was based on 2110 publications in Medline extracted from 271 Cochrane reviews and on 4333 irrelevant references. The first filter maximizes sensitivity (92.42%; specificity 79.67%, precision 68.49%) and should be used when a comprehensive search is needed. The second filter maximizes specificity (92.06%; precision 82.98%, sensitivity 80.94%) and should be used when a more focused search is sufficient.

Published
2020

Catalog

Books, media, physical & digital resources
See catalog results