Can journal abstracts alone be used for clinical decision making?
The Medline abstract, originally intended only as an indexing tool, has become the sole information source for many. It has its advantages -- easy to read, structured and informative, and it is now available almost everywhere through mobile phones and other wireless handheld devices. It can even be retrieved by text messaging or e-mail.
Wireless networks, so pervasive worldwide, raise the possibility that it might be useful in the practice of evidence-based medicine. Are journal abstracts alone adequate for clinical decision-making? Is it better to use abstracts from current clinical journals to guide clinical decisions than not to have any guide at all?
Clinicians and medical librarians are wary because evidence-based medicine (EBM) calls for a comprehensive review and critical assessment of full-text journal articles and, together with information from the patient and laboratory tests, develop a guide to patient management . But, it is not easy to practice -- many clinicians, because of lack of time, access to full-text articles and expertise in critical appraisal skills, rely solely on abstracts for clinical decisions [2-3].
Could abstracts alone be used instead? Will multiple abstracts from highly regarded clinical journals comprise a ‘consensus’ opinion to provide the clinician the confidence to make a treatment decision or diagnostic approach? Concurring abstracts might provide validation needed for formulating a management strategy. If clinicians are unable to make use of clinical research they could miss out on research that can potentially benefit their patients.
Clinical evidence has to be easily accessible to be most useful -- if it is not convenient, clinicians will not use it even if the need is high . The more effort is required to use it, the less likely it will be used [5-7]. In a recent survey of 1900 U.S. physicians, Manhattan Research found that nearly 50% of US physicians use Wikipedia for professional health and medical information purposes, especially condition information . Yet, only about 10% created new entries or edited existing information. Convenience trumps need and knowledge all the time.
Most highly accessed journals today use structured abstracts. Since the adoption of the IMRAD (Introduction, Methods, Results and Discussion) format, abstracts like BMJ’s pico have become more systematic, detailed, and informative to the point of becoming ‘mini papers’ . Sometimes, the abstract does not accurately represent or completely summarize the article . However, many of the errors were minor and unlikely to lead to serious misinterpretation. A journal-based effort to improve abstract quality seemed to be effective . A more recent review of BMJ, CMAJ and JAMA showed that the conclusions in 27 articles had a mean quality score of 100%, meaning that were consistent with the results . Could several concurring abstracts from distinct journals provide a “consensus” clinical bottom line? Will this compensate for the deficiencies in abstracts and provide the clinician greater confidence?
The availability of open access journal articles is on the rise. Today, full-text versions of research papers of many highly read journals are immediately available or within a year of publication. Additionally, some organizations and publishers provide totally free, or low cost, online access to biomedical journals for readers in developing countries. [13-15]. Furthermore, papers generated through research funded by the NIH, other government agencies and participating organizations, are now required by law to be deposited in PubMed Central.
Nevertheless, access to online full-text articles is still a challenge in developing countries: the lack of Internet access, low bandwidth and shortage of computers for reading and printing journal articles are still making full-text access difficult. Most healthcare workers in developing countries use public computers like Internet cafes and libraries. . Many countries (more than 70) with GNI (gross national income) per capita that do not qualify for free access are eligible for reduced subscription, but for most, the cost is still unaffordable. Moreover, these programs are intended for government and non-profit health care organizations only -– physicians practicing independently or in a group cannot avail of these programs.
We recently asked some physicians practicing mostly in developing countries whether Medline abstracts are adequate for clinical decisions: 28% (15/54)categorically stated they are. Forty three percent (23/54) said no, but that they had no access to full-text journals and another 28% also said no, but they had no time to read full-text articles. One respondent did not use Medline abstracts at all. This preliminary study confirms access issues in these countries, but also the potential value for abstracts if these could be made available easily through their existing infrastructure.
Wireless communications is a success story far exceeding the UN’s goal of 50% coverage by 2015. GSMA reports that there are now more than four billion connections worldwide with more than 80% of the world’s population accessible by mobile phones . Among U.S. physicians, 64% now use smartphones . Furthermore, mobile phones are getting better -- processes previously associated only with desktop or laptop computers are now in smartphones. The mobile phone, available in countries with minimal Internet access or low bandwidth and poor computer resources enables healthcare personnel to access the Internet. It creates an environment where updated medical information such as Medline journal abstracts is accessible. An added benefit is that expert consultation through camera phones is possible.
For example, a search for randomized controlled trials using the PICO strategy (http://pubmedhh.nlm.nih.gov/nlme/pico/piconew.html) P “postpartum haemorrhage”; I “misoprostol”; C “placebo”; O “low resource area” will retrieve an abstract of a three-year clinical trial .
Even though EBM teaches that full-text journals be reviewed, with more informative abstracts such as above, Medline abstracts alone might be a useful tool for making clinical decisions especially in places where no other resource is available. If journal abstracts are accepted as ‘current evidence’ suitable for evidence-based practice, then all who are involved in the publication process -- authors, journal reviewers and editors, need to ensure that the abstract is indeed an accurate summary of the full paper.
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The views and opinions of authors expressed herein do not necessarily state or reflect those of the National Library of Medicine, National Institutes of Health or the US Department of Health and Human Services.
Acknowledgements: This research was supported by the Intramural Research Program of the National Institutes of Health (NIH), National Library of Medicine (NLM), and Lister Hill National Center for Biomedical Communications (LHNCBC).
Competing interests: None declared
Competing interests: No competing interests