PMID- 29191447 OWN - NLM STAT- MEDLINE DCOM- 20190909 LR - 20190909 IS - 1878-5921 (Electronic) IS - 0895-4356 (Linking) VI - 95 DP - 2018 Mar TI - Comparative evidence on harms in pediatric randomized clinical trials from less developed versus more developed countries is limited. PG - 63-72 LID - S0895-4356(17)30240-8 [pii] LID - 10.1016/j.jclinepi.2017.11.016 [doi] AB - OBJECTIVES: Evaluate comparative harm rates from medical interventions in pediatric randomized clinical trials (RCTs) from more developed (MDCs) and less developed countries (LDCs). STUDY DESIGN AND SETTING: Meta-epidemiologic empirical evaluation of Cochrane Database of Systematic Reviews (June 2014) meta-analyses reporting clinically important harm-outcomes (severe adverse events [AEs], discontinuations due to AEs, any AE, and mortality) that included at least one pediatric RCT from MDCs and at least one from LDCs. We estimated relative odds ratios (RORs) for each harm, within each meta-analysis, between RCTs from MDCs and LDCs and calculated random-effects-summary-RORs (sRORs) for each harm across multiple meta-analyses. RESULTS: Only 1% (26/2,363) of meta-analyses with clinically important harm-outcomes in the entire Cochrane Database of Systematic Reviews included pediatric RCTs both from MDCs and LDCs. We analyzed 26 meta-analyses with 244 data sets from pediatric RCTs, 116 from MDCs and 128 from LDCs (64 and 66 unique RCTs respectively). The summary ROR was 0.92 (95% confidence intervals: 0.78-1.08) for severe AEs; 1.13 (0.54-2.34) for discontinuations due to AEs; 1.10 (0.77-1.59) for any AE; and 0.99 (0.61-1.61) for mortality and for the all-harms-combined-end point 0.96 (0.83-1.10). Differences of ROR-point-estimates >/=2-fold between MDCs and LDCs were identified in 35% of meta-analyses. CONCLUSION: We found no major systematic differences in harm rates in pediatric trials between MDCs and LDCs, but data on harms in children were overall very limited. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Tedesco, Dario AU - Tedesco D AD - Department of Biomedical and Neuromotor Sciences, University of Bologna, Via San Giacomo, 12, 40126, Bologna, Italy. FAU - Farid-Kapadia, Mufiza AU - Farid-Kapadia M AD - Department of Pediatrics, Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children University of Toronto, 555 University Avenue, Toronto, Ontario M5G-1X8, Canada. FAU - Offringa, Martin AU - Offringa M AD - Department of Pediatrics, Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children University of Toronto, 555 University Avenue, Toronto, Ontario M5G-1X8, Canada. FAU - Bhutta, Zulfiqar A AU - Bhutta ZA AD - Department of Pediatrics, Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children University of Toronto, 555 University Avenue, Toronto, Ontario M5G-1X8, Canada; Centre for Global Child Health, The Hospital for Sick Children, 686 Bay Street, Suite 11.9805, Toronto, ON, M5G-0A4, Canada; Center of Excellence in Women and Child Health, The Aga Khan University, Stadium Road, P.O. Box 3500, Karachi, 74800, Pakistan. FAU - Maldonado, Yvonne AU - Maldonado Y AD - Division of Infectious Diseases, Department of Pediatrics, Stanford University School of Medicine, 300 Pasteur Drive, Room G312, Stanford, CA 94305, USA; Department of Health Research and Policy, Stanford University School of Medicine, 150 Governor's Lane, HRP Redwood Building, Stanford, CA 94305, USA; Senior Associate Dean for Faculty Development and Diversity, Stanford University School of Medicine, Stanford, CA 94305, USA. FAU - Ioannidis, John P A AU - Ioannidis JPA AD - Department of Health Research and Policy, Stanford University School of Medicine, 150 Governor's Lane, HRP Redwood Building, Stanford, CA 94305, USA; Department of Medicine, Stanford Prevention Research Center, Stanford University School of Medicine, 1265 Welch Road, Stanford, CA 94305, USA; Meta Research Innovation Center at Stanford (METRICS), 1070 Arastradero Road, Palo Alto, CA 94304, USA. FAU - Contopoulos-Ioannidis, Despina G AU - Contopoulos-Ioannidis DG AD - Division of Infectious Diseases, Department of Pediatrics, Stanford University School of Medicine, 300 Pasteur Drive, Room G312, Stanford, CA 94305, USA; Meta Research Innovation Center at Stanford (METRICS), 1070 Arastradero Road, Palo Alto, CA 94304, USA. Electronic address: dcontop@stanford.edu. LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20171128 PL - United States TA - J Clin Epidemiol JT - Journal of clinical epidemiology JID - 8801383 SB - IM MH - Child MH - Databases, Factual MH - Developed Countries MH - Developing Countries MH - Humans MH - Meta-Analysis as Topic MH - Odds Ratio MH - Patient Harm/*statistics & numerical data MH - *Randomized Controlled Trials as Topic OTO - NOTNLM OT - Cochrane Database of Systematic Reviews OT - Comparative OT - Harms OT - Meta-analyses OT - Mortality OT - Pediatrics OT - Randomized trials EDAT- 2017/12/02 06:00 MHDA- 2019/09/10 06:00 CRDT- 2017/12/02 06:00 PHST- 2017/03/16 00:00 [received] PHST- 2017/11/15 00:00 [revised] PHST- 2017/11/22 00:00 [accepted] PHST- 2017/12/02 06:00 [pubmed] PHST- 2019/09/10 06:00 [medline] PHST- 2017/12/02 06:00 [entrez] AID - S0895-4356(17)30240-8 [pii] AID - 10.1016/j.jclinepi.2017.11.016 [doi] PST - ppublish SO - J Clin Epidemiol. 2018 Mar;95:63-72. doi: 10.1016/j.jclinepi.2017.11.016. Epub 2017 Nov 28.