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Protocol for a living evidence synthesis on variants of concern and COVID-19 vaccine effectiveness.
Shaver N, Katz M, Darko Asamoah G, Linkins LA, Abdelkader W, Beck A, Bennett A, Hughes SE, Smith M, Begin M, Coyle D, Piggott T, Kagina BM, Welch V, Colijn C, Earn DJD, El Emam K, Heffernan J, O'Brien SF, Wilson K, Collins E, Navarro T, Beyene J, Boutron I, Bowdish D, Cooper C, Costa A, Curran J, Griffith L, Hsu A, Grimshaw J, Langlois MA, Li X, Pham-Huy A, Raina P, Rubini M, Thabane L, Wang H, Xu L, Brouwers M, Horsley T, Lavis J, Iorio A, Little J. Shaver N, et al. Among authors: piggott t. Vaccine. 2023 Oct 13;41(43):6411-6418. doi: 10.1016/j.vaccine.2023.09.012. Epub 2023 Sep 16. Vaccine. 2023. PMID: 37718186 Free article. Review.
A taxonomy and framework for identifying and developing actionable statements in guidelines suggests avoiding informal recommendations.
Lotfi T, Hajizadeh A, Moja L, Akl EA, Piggott T, Kredo T, Langendam MW, Iorio A, Klugar M, Klugarová J, Neumann I, Wiercioch W, Leontiadis GI, Mbuagbaw L, Turgeon AF, Meerpohl J, Stevens A, Brozek J, Santesso N, Pottie K, Dewidar O, Flottorp SA, Karpusheff J, Saz-Parkinson Z, Rojas MX, Parmelli E, Chu DK, Tugwell P, Welch V, Avey MT, Brignardello-Petersen R, Mathew JL, Munn Z, Nieuwlaat R, Ford N, Qaseem A, Askie LM, Schünemann HJ. Lotfi T, et al. Among authors: piggott t. J Clin Epidemiol. 2022 Jan;141:161-171. doi: 10.1016/j.jclinepi.2021.09.028. Epub 2021 Sep 23. J Clin Epidemiol. 2022. PMID: 34562579
Good or best practice statements: proposal for the operationalisation and implementation of GRADE guidance.
Dewidar O, Lotfi T, Langendam MW, Parmelli E, Saz Parkinson Z, Solo K, Chu DK, Mathew JL, Akl EA, Brignardello-Petersen R, Mustafa RA, Moja L, Iorio A, Chi Y, Canelo-Aybar C, Kredo T, Karpusheff J, Turgeon AF, Alonso-Coello P, Wiercioch W, Gerritsen A, Klugar M, Rojas MX, Tugwell P, Welch VA, Pottie K, Munn Z, Nieuwlaat R, Ford N, Stevens A, Khabsa J, Nasir Z, Leontiadis G, Meerpohl J, Piggott T, Qaseem A, Matthews M, Schünemann HJ; eCOVID-19 recommendations map collaborators. Dewidar O, et al. Among authors: piggott t. BMJ Evid Based Med. 2023 Jun;28(3):189-196. doi: 10.1136/bmjebm-2022-111962. Epub 2022 Apr 15. BMJ Evid Based Med. 2023. PMID: 35428694 Free PMC article.
Which actionable statements qualify as good practice statements In Covid-19 guidelines? A systematic appraisal.
Dewidar O, Lotfi T, Langendam M, Parmelli E, Saz Parkinson Z, Solo K, Chu DK, Mathew JL, Akl EA, Brignardello-Petersen R, Mustafa RA, Moja L, Iorio A, Chi Y, Canelo-Aybar C, Kredo T, Karpusheff J, Turgeon AF, Alonso-Coello P, Wiercioch W, Gerritsen A, Klugar M, Rojas MX, Tugwell P, Welch VA, Pottie K, Munn Z, Nieuwlaat R, Ford N, Stevens A, Khabsa J, Nasir Z, Leontiadis GI, Meerpohl JJ, Piggott T, Qaseem A, Matthews M, Schünemann HJ; eCOVID-19 recommendations map collaborators. Dewidar O, et al. Among authors: piggott t. BMJ Evid Based Med. 2022 Dec;27(6):361-369. doi: 10.1136/bmjebm-2021-111866. Epub 2022 Apr 15. BMJ Evid Based Med. 2022. PMID: 35428695 Free PMC article.
Over half of the WHO guidelines published from 2014 to 2019 explicitly considered health equity issues: a cross-sectional survey.
Dewidar O, Tsang P, León-García M, Mathew C, Antequera A, Baldeh T, Akl EA, Alonso-Coello P, Petkovic J, Piggott T, Pottie K, Schünemann H, Tugwell P, Welch V. Dewidar O, et al. Among authors: piggott t. J Clin Epidemiol. 2020 Nov;127:125-133. doi: 10.1016/j.jclinepi.2020.07.012. Epub 2020 Jul 24. J Clin Epidemiol. 2020. PMID: 32717312
66 results