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 |