Goldenberg JZ, Mertz D, Johnston BC. Probiotics to Prevent Clostridium difficile Infection in Patients Receiving Antibiotics. JAMA. 2018 Aug 7;320(5):499-500. doi: 10.1001/jama.2018.9064.

Sadeghirad B, Florez ID, Chang Y, Forutan F, Zeraatkar D, Morgan RL, Shahid S, Bala MM, Beyene J, Offringa M, Adams-Webber T, Sherman PM, El-Gouhary E, Guyatt GH, Johnston BC. Comparative effectiveness of prophylactic therapies for necrotizing enterocolitis in preterm infants: Protocol for a network meta-analysis of randomized trials. Int J Prev Med. 2018; 8:66.doi: 10.4103/ijpvm. IJPVM_328_17.

Johnston BC, Lytvyn L, Lo CK, Allen SJ, Wang D, Szajewska H, Miller M, Ehrhardt S, Sampalis J, Duman DG, Pozzoni P, Colli A, Lönnermark E, Selinger CP, Wong S, Plummer S, Hickson M, Pancheva R, Hirsch S, Klarin B, Goldenberg JZ, Wang L, Mbuagbaw L, Foster G, Maw A, Sadeghirad B, Thabane L, Mertz D. Microbial preparations (probiotics) for the prevention of Clostridium difficile Infection: An individual patient data meta-analysis of 6,851 participants. Infect Control Hosp Epidemiol. 2018 Apr 26:1-11.

Goldenberg JZ, Yap C, Lytvyn L, Ka-Fung Lo C, Beardsley J, Mertz D, Johnston BC. Probiotics for the prevention of Clostridium difficile in adults and children. Cochrane Database Syst Rev. 2017 Dec 19;12:CD004892.

Zeraatkar D, Bala M, Webber-Adams T, Rabassa M, Valli C, Guzik J, Zajac J, Agarwal A, Barberato S, Bartoszko J, Hitchcock C, Leenus A, Lo C, Lopes LC, de Cassia Bengamaschi Motta C, Mario Zea Perdomo A, Alonso-Coello P, Guyatt G, Johnston B. Red meat and health outcomes: a systematic review protocol. PROSPERO. 2017 CRD42017074074.

Johnston BC, Goldenberg JZ, Parkin PC. Is there a role for probiotics in the prevention of antibiotic-associated diarrhea in infants and children? JAMA2016 Oct 11;316(14):1484-1485.

Sadeghirad B, Duhaney T, Motaghipisheh S, Campbell NRC, Johnston BC. Influence of unhealthy food and beverage marketing on children’s dietary intake and preference: a systematic review and meta-analysis of randomized trials. Obesity Reviews. 2016 Oct;17(10):945-59.

Goldenberg JZ, Lytvyn L, Steurich J, Parkin P, Mahant S, Johnston BC. Probiotics for the prevention of pediatric antibiotic-associated diarrhea. Cochrane Database Syst Rev. 2015 Dec 22;12:CD004827.

Johnston BC, Kanters S, Bandayrel K, Wu P, Naji F, Seimenuik R, Busse JW, Ball GD, Thorlund K, Guyatt GH, Mills EJ.  Comparison of weight-loss among named diet programs in overweight and obese adults: A network meta-analysis.  JAMA. 2014;312(9):923-933.

Johnston BC, Ma SSY, Goldenberg JZ, Thorlund K, Vandvik PO, Loeb M, Guyatt GH. Probiotics for the prevention of Clostridium difficile-associated diarrhea: systematic review and meta-analysis. Ann Intern Medicine2012 Dec 18;157(12):878-88.



Clinical and public health practice guidelines

Johnston BC, Alonso-Coello P, Bala MM, Zeraatkar D, Rabassa M, Valli C, Marshall C, El Dib R, Vernooij RWM, Vandvik PO, Guyatt GH. Methods for trustworthy nutritional recommendations: a NutriRECS protocol. BMC Med Res Methodol. 2018 Dec 5;18(1):162.

Rabassa M, Garcia-Ribera Ruiz S, Solà I, Pardo-Hernandez H, Alonso-Coello P, García LM. Nutrition guidelines vary widely in methodological quality: An overview of reviews. J Clin Epidemiol. 2018, Dec;104:62-72.

Erickson J, Sadeghirad B, Lytvyn L, Slavin J, Johnston BC. The scientific basis of guideline recommendations on sugar intake: a systematic review. Ann Intern Medicine. 2017 Feb 21;166(4):257-267.

Martínez García L, Pardo-Hernandez H, Niño de Guzman E, Superchi C, Ballesteros M, McFarlane E, Penman K, Posso M, Roqué I Figuls M, Sanabria AJ, Selva A, Vernooij RW, Alonso-Coello P. Development of a prioritisation tool for the updating of clinical guideline questions: the UpPriority Tool protocol. BMJ Open. 2017 Aug 3;7(8):e017226.

Vernooij RW, Alonso-Coello P, Brouwers M, Martínez García L; CheckUp Panel. Reporting items for updated clinical guidelines: checklist for the reporting of updated guidelines (CheckUp). PLoS Med. 2017;14(1):e1002207.

Vernooij RWM, Martínez García L, Florez ID, Hildago Armas L, Poorthuis MHF, Brouwers M, Alonso-Coello P. Updated clinical guidelines experience major reporting limitations. Implement Sci. 2017;12(1):120.

Fuentes Padilla P, Martínez G, Vernooij RWM, Cosp XB, Alonso-Coello P. Nutrition in critically ill adults: a systematic quality assessment of clinical practice guidelines. Clin Nutr. 2016 Dec;35(6):1219-1225.

Lytvyn L, Mertz D, Sadeghirad B, Alaklobi F, Selva-Olid A, Alonso-Coello P, Johnston BC. Prevention of Clostridium difficile infection: a systematic review and critical appraisal of clinical practice guidelines.  Infect Contr Hosp Epidemiol. 2016 Aug;37(8):901-8.

Alonso-Coello P, Oxman AD, Moberg J, Brignardello-Petersen R, Akl EA, Davoli M, Treweek S, Mustafa RA, Vandvik PO, Meerpohl J, Guyatt GH, Schünemann HJ; GRADE Working Group. GRADE Evidence to Decision (EtD) frameworks: a systematic and transparent approach to making well informed healthcare choices. 2: Clinical practice guidelines. BMJ. 2016 Jun 30;353:i2089. doi: 10.1136/bmj.i2089.

Alonso-Coello P, Schünemann HJ, Moberg J, Brignardello-Petersen R, Akl EA, Davoli M, Treweek S, Mustafa RA, Rada G, Rosenbaum S, Morelli A, Guyatt GH, Oxman AD; GRADE Working Group. GRADE Evidence to Decision (EtD) frameworks: a systematic and transparent approach to making well informed healthcare choices. 1: Introduction. BMJ. 2016 Jun 28;353:i2016. doi: 10.1136/bmj.i2016.

Alexander PE, Brito JP, Neumann I, Gionfriddo MR, Bero L, Djulbegovic B, Stoltzfus R, Montori VM, Norris SL, Schünemann HJ, Guyatt GH. World Health Organization strong recommendations based on low-quality evidence (study quality) are frequent and often inconsistent with GRADE guidance. J Clin Epidemiol. 2016; 72:98-106.

Bała MM, Płaczkiewicz-Jankowska E, Topór-Mądry R, Leśniak W, Jaeschke R, Sieradzki J, Grzeszczak W, Banasiak W; ARETAEUS Study Group. Is newly diagnosed type 2 diabetes treated according to the guidelines? Pol Arch Med Wewn. 2011 Jan-Feb;121(1-2):7-17.

Vernooij RW, Sanabria AJ, Solà I, Alonso-Coello P, García LM. Guidance for updating clinical practice guidelines: a systematic review of methodological handbooks. Implement Sci. 2014;9(1):3.

Alonso-Coello P, Irfan A, Solà I, Gich I, Delgado-Noguera M, Rigau D, Tort S,  Bonfill X, Burgers J, Schunemann H. The quality of clinical practice guidelines over the last two decades: a systematic review of guideline appraisal studies. Qual Saf Health Care. 2010 Dec;19(6):e58.


Systematic reviews and meta-analysis

Agarwal A, Johnston BC, Vernooij RWM, Carrasco-Labra A, Brignardello-Petersen R, Neumann I, Akl EA, Sun X, Briel M, Busse JW, Ebrahim S, Granados CE, Iorio A, Irfan A, Martinez-Garcia L, Mustafa RA, Ramirez-Morera A, Selva A, Solà I, Sanabrai AJ, Tikkinen KAO, Vandvik PO, Zazueta OE, Zhou Q, Schunemann HJ, Guyatt GH, Alonso-Coello P. A methodological survey of Absolute Risk ReductiOn in abstracts of systematic revieWs (ARROW).  J Clin Epidemiol. 2017;81:3-12.

Guyatt GH, Ebrahim S, Alonso-Coello P, Johnston BC, Mathioudakis AG, Briel M,  Mustafa RA, Sun X, Walter SD, Heels-Ansdell D, Neumann I, Kahale LA, Iorio A, Meerpohl J, Schünemann HJ, Akl EA. GRADE guidelines 17: assessing the risk of bias associated with missing participant outcome data in a body of evidence. J Clin Epidemiol. 2017;87:14-22. doi: 10.1016/j.jclinepi.2017.05.005.

Johnston BC, Patrick DL, Busse JW, Schunemann HJ, Agarwal A, Guyatt GH. Patient-reported outcomes in meta-analyses – Part 1: assessing risk of bias and combining results. BMC Health Qual Life Outcomes. 2013 Jul 1;11(1):109.

Johnston BC, Thorlund K, da Costa BR, Furukawa TA, Guyatt GH. New methods can extend the use of minimal important difference units in meta-analyses of continuous outcome measures. J Clin Epidemiol2012, Aug;65(8):817-26.


Randomized controlled trials

Johnston BC, Guyatt GH.  Best (but often forgotten) practices: intention-to-treat, treatment adherence and missing participant outcome data in the nutrition literature. Amer J Clin Nutri. 2016 Nov;104(5):1197-1201.

Bala MM, Akl EA, Sun X, Bassler D, Mertz D, Mejza F, Vandvik PO, Malaga G, Johnston BC, Dahm P, Alonso-Coello P, Diaz-Granados N, Srinathan SK, Hassouneh B, Briel M, Busse JW, You JJ, Walter SD, Altman DG, Guyatt GH. Randomized trials published in higher vs. lower impact journals differ in design, conduct, and analysis. J Clin Epidemiol. 2013 Mar;66(3):286-95.


Incorporating patient and community values, attitudes and preferences

Selva A, Solà I, Zhang Y, Pardo-Hernandez H, Haynes RB, Martínez García L, Navarro T, Schünemann H, Alonso-Coello P. Development and use of a content search strategy for retrieving studies on patients’ views and preferences. Health Qual Life Outcomes. 2017 Aug 30;15(1):126. doi: 10.1186/s12955-017-0698-5.

Yepes-Nuñez JJ, Zhang Y, Xie F, Alonso-Coello P, Selva A, Schünemann H, Guyatt G. Forty-two systematic reviews generated 23 items for assessing the risk of bias in values and preferences’ studies. J Clin Epidemiol. 2017 May;85:21-31. doi:10.1016/j.jclinepi.2017.04.019.

Alonso-Coello P, Montori VM, Díaz MG, Devereaux PJ, Mas G, Diez AI, Solà I, Roura M, Souto JC, Oliver S, Ruiz R, Coll-Vinent B, Gich I, Schünemann HJ, Guyatt G. Values and preferences for oral antithrombotic therapy in patients with atrial fibrillation: physician and patient perspectives. Health Expect. 2015 Dec;18(6):2318-27.

Vernooij RW, Willson M, Gagliardi AR; members of the Guidelines International Network Implementation Working Group. Characterizing patient-oriented tools that could be packaged with guidelines to promote self-management and guideline adoption: a meta-review. Implement Sci. 2016;11(1):52.


Patient reported outcomes and minimal important difference

Ebrahim S, Vercammen K, Sivanand A, Guyatt GH, Carrasco-Labra A, Fernandes RM, Crawford MW, Nesrallah G, Johnston BC. Minimally important differences (MID) in patient or proxy-reported outcome studies relevant to children: a systematic review. Pediatrics. 2017 Mar;139(3). pii: e20160833. doi: 10.1542/peds.2016-0833.

Johnston BC, Miller P, Agarwal A, Mulla S, Khokhar R, Hitchcock C, De Oliveira K, Mohiuddin M, Sadeghirad B, Bala M, Koperny M, Sekercioglu N, Adams-Webber T, Granados A, Hamed A, Vanderploeg A, Crawford MW, Guyatt GH. Exploring the use of patient-reported outcomes in interventional studies of patients with rare diseases: a systematic survey of the literature. J Clin Epidemiol. 2016 Jan;32(6):393-399.

Johnston BC, Alonso-Coello P, Friedrich JO, Mustafa RA, Tikkinen KA, Neumann I, Vandvik PO, Akl EA, da Costa BR, Adhikari NK, Dalmau GM, Kosunen E, Mustonen J, Crawford MW, Thabane L, Guyatt GH. Do clinicians understand the size of treatment effects? A randomized survey across 8 countries. CMAJ. 2016 Jan 5;188(1):25-32.

Johnston BC, Ebrahim S, Carrasco-Labra A, Furukawa TA, Patrick DL, Crawford MW, Hemmelgarn BR, Schunemann HJ, Guyatt GH, Nesrallah G. Minimally important difference (MID) estimates and methods: a protocol. BMJ Open. 2015 Oct 1;5(10):e007953.

Johnston BC, Donen R, Pooni A, Pond J, Xie F, Giglia L, Kam A, Bamber A, Bami K, Patel Y, Guyatt GH. A conceptual framework of health-related quality of life in pediatric acute gastroenteritis. J Pediatr Gastroenter & Nutri. 2013  Mar;56(3):280-9.

Johnston BC, Patrick DL, Thorlund K, Busse JW, da Costa BR, Schunemann HJ, Guyatt GH. Patient-reported quality of life outcomes in meta-analyses – Part 2: improving interpretability for decision makers. BMC Health Qual Life Outcomes. Dec 21 2013;11:211.