Assistant Professor


Curriculum vitae



Department of Obstetrics and Gynecology

Department of Health Research Methods, Evidence and Impact

McMaster University
1280 Main St. West,
HSC3V - 43B
Hamilton, Ontario ​L8S 4K1
Canada



Authors reply re: The Ten Group Classification System – First Things First


Journal article


Linnea V Ladfors, G. Muraca, J. Zetterqvist, A. Butwick, O. Stephansson
BJOG : an international journal of obstetrics and gynaecology, 2022

Semantic Scholar DOI PubMed
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APA   Click to copy
Ladfors, L. V., Muraca, G., Zetterqvist, J., Butwick, A., & Stephansson, O. (2022). Authors reply re: The Ten Group Classification System – First Things First. BJOG : an International Journal of Obstetrics and Gynaecology.


Chicago/Turabian   Click to copy
Ladfors, Linnea V, G. Muraca, J. Zetterqvist, A. Butwick, and O. Stephansson. “Authors Reply Re: The Ten Group Classification System – First Things First.” BJOG : an international journal of obstetrics and gynaecology (2022).


MLA   Click to copy
Ladfors, Linnea V., et al. “Authors Reply Re: The Ten Group Classification System – First Things First.” BJOG : an International Journal of Obstetrics and Gynaecology, 2022.


BibTeX   Click to copy

@article{linnea2022a,
  title = {Authors reply re: The Ten Group Classification System – First Things First},
  year = {2022},
  journal = {BJOG : an international journal of obstetrics and gynaecology},
  author = {Ladfors, Linnea V and Muraca, G. and Zetterqvist, J. and Butwick, A. and Stephansson, O.}
}

Abstract

Amalgamation of Group 6– 10 prevents data validation. Groups 8 and 9 are consistently similar sizes universally and are known to have high PPH rates. The rationale behind this amalgamation fails to acknowledge one of the great strengths of the StTGCST as being a core maternity quality metric. We do appreciate that further subdivision or amalgamation of the TGCS may be useful in certain instances, to provide appropriate denominators depending on the event being evaluated. It is important to agree a standard starting point for presentation of perinatal data. If the TGCS is accepted as that starting point, then we must also accept that the only reason not to start with this is the unavailability of the data. Any modifications, in particular amalgamation of groups, should only be undertaken after an initial analysis using the StTGCST. If the modification is due to unavailability of data, then this should be clearly stated in the methodology. We suggest that all papers using the TGCS philosophy should begin by using the StTGCST. Indeed, including the caesarean section rates for each group also adds a lot to the interpretation of data quality, the context of the population and philosophy of practice. Ultimately, this will encourage everyone to ensure that the required data is collected routinely and, most importantly, we can all learn from each other.


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