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Table 1 General characteristics of included systematic reviews or surveys

From: A scoping review of comparisons between abstracts and full reports in primary biomedical research

First author, publication year Study design Field of study Data sources for abstracts Data sources for full reports Study search frame Numbers of included abstracts/full reports Study country of primary studies Study sample size in primary studies
Abstracts followed by subsequent texts within the same publications (n = 6)
Boutron 2010 [4] Survey Composite fields Medline via PubMed Same as abstracts Full reports: 2006 December 72/72 NR For full reports: Median 84 (range: 4 to 6848)
Harris 2002 [18] Survey Psychology Eight American Psychological Association journalsa Same as abstracts From years 1997 to 1998 400/400 NR NR
Lehmen 2014b [12] Systematic review Spinal studies Three spinal journalsc Same as abstracts From years 2001 to 2010 40/40 NR NR
Ochodo 2013d [3] Systematic review Diagnostic accuracy studies Journals with an impact factor of 4 or higher Same as abstracts Between January and June 2010 126/126 NR For full reports: Median
151 (range: 12 to 20,765)
Pitkin 1999 [10] Survey General medicine Five major general medical journalse and a consecutive sample of articles published in the CMAJ Same as abstracts For the five journals: Jul 1, 1996-Jun 30, 1997; For CMAJ: Jul 1 1996-Aug 15, 1997 264/264 NR NR
Ward 2004 [11] Survey Pharmacological studies Six pharmacy-specific journalsf Same as abstracts From June 2001 to May 2002 243/243 NR NR
Abstracts in conferences and meetings (n = 11)
Bhandari 2002 [2] Survey Orthopedics The 1996 scientific program of the sixty-third Annual Meeting of the American Academy of Orthopaedic Surgeons Medline and PubMed Abstracts: 1996; Full reports: 1996-2001 465/159 For full reports: Most in North America (93.1%) For full reports: Median 49 (range: 2 to 8141)
Davies 2002 [22] Survey Perinatology The first annual Perinatal Society of Australia and New Zealand Congress in 1997 Medline Abstracts: 1997; Full reports: up to Oct 2000 172/83 NR NR
Dyson 2006 [27] Survey Veterinary anesthesiology Conference abstracts from 1990 to 1999 annual meetings of the American College of Veterinary Anesthesiologists Entrez PubMed and CAB Direct Abstracts: 1990 - 1999; Full reports: 1990 - 2006 283/201 NR NR
Hopewell 2006 [7] Survey Oncology American
Society of Clinical Oncology annual conference in 1992
The Cochrane Central Register of Controlled Trials and PubMed Abstracts: 1992; Full reports: up to 2002 209/37 NR For full reports: Median 120 (range: 8 to 612)
Klassen 2002 [23] Survey Pediatrics The proceedings from the Society for Pediatric Research PubMed, EMBASE, Cochrane Library, CINAHL, Web of Science, Current Contents, and HEALTHSTAR Abstracts: 1992 - 1995; Full reports: up to July 2000 447/264 NR For full reports: Median 45 (interquartile range: 20 to 116)
Kottachchi 2010g [19] Systematic review Inflammatory bowel diseases All abstracts of Phase III randomized controlled trials in inflammatory bowel disease accepted at Digestive Disease Week MedLine, PubMed, EMBASE, and Google Scholar Abstracts: 1998 -2003; Full reports: 1997-2009 82/64 For full reports: Europe (53%, 34/64); North America (28%, 18/64); and others For full reports: Mean 94 (SD: 96)
Preston 2006 [24] Survey Orthopedics The annual meeting of the Orthopaedic
Trauma Association
PubMed Abstracts: 1994 - 1997; Full reports: up to 2005 254/137 For full reports: Most in North America (93%) For full reports: Mean 121 (standard deviation: 179)
Rosmarakis 2005 [20] Survey Infectious diseases and microbiology From the first session of 7 of 15 major research categories presented in the 1999 and 2000 Interscience Conference on Antimicrobial Agents and Chemotherapy Index Medicus Abstracts: 1999 - 2000; Full reports: from 1999 to 2004. March 190/51 NR NR
Snedeker 2010 [21] Survey Veterinary pre-harvest or abattoir-level interventions against foodborne pathogens Ten conferences/meetingsh which involved presentations on pre-harvest or abattoir-level food safety Four databases: Agricola, CAB Abstracts, Web of Knowledge, and Scholar’s Portal From years 1995 to 2004 59/59 NR For full reports: median 5 (range 1 to 35)
Toma 2006 [25] Survey Cardiology Proceedings booklets and related Web sites for the American College of Cardiology scientific meetings (1999-2002). PubMed,
MEDLINE, EMBASE, and the Cochrane Cochrane
Central Register of Controlled
Trials databases
Abstracts: 1999 - 2002; Full reports: up to 2005 148/148 NR For full reports: Median
452 (interquartile range: 173 to 1715)
Turpen 2010 [26] Survey Urology Annual meetings of the American Urological Association PubMed Abstracts: 1999 - 2002; Full reports: up to 2007 126/79 NR NR
  1. NR not reported, N/A not available
  2. aIncluding Health Psychology; Journal of Abnormal Psychology; Journal of Consulting and Clinical Psychology; Journal of Counseling Psychology; Journal of Family Psychology; Neuropsychology; Professional Psychology: Research and Practice; and Psychological Assessment
  3. bThe score for this study was 7 (out of 9) points on AMSTAR (a measurement tool to assess systematic reviews)
  4. cIncluding Spine; The Spine Journal; and Journal of Spinal Disorders and Techniques
  5. dThe score for this study was 6 (out of 9) points on AMSTAR
  6. eIncluding Annals of Internal Medicine; BMJ; JAMA; Lancet; and New England Journal of Medicine
  7. fIncluding American Journal of Health-System Pharmacy; The Annals of Pharmacotherapy; The Consultant Pharmacist; Hospital Pharmacy; Journal of the American Pharmacists Association; and Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy
  8. gThe score for this study was 8 (out of 9) points on AMSTAR
  9. hIncluding International Symposium on Veterinary Economics and Epidemiology; Conference of Research Workers in Animal Disease; International Symposium on Shiga Toxin (Verocytotoxin) – Producing Escherichia coli Infections; Society for Veterinary Epidemiology and Preventive Medicine; International Symposium on the Epidemiology and Control of Foodborne Pathogens in Pork; International Symposium on Food-Borne Salmonella in Poultry; American Society of Microbiologists Conference on Salmonella; North East Conference on Avian Diseases; International Association of Food Protection (formerly IAMFES) Annual Meeting; and Institute of Food Technologists Annual Meeting