Abstracts: Comparative analysis of medical and education articles
In Research Articles (RA) abstracts appear to have a twofold intention: On the one hand, they are supposed to provide a clear and concise summary of the major ideas in an article; on the other, they should persuade the reader that the full paper is worth reading. Pintos and Crimi (2010) state that although their structure and certain features may vary depending on the discipline under study and on the requirements of the journal which publishes them, abstracts are generally characterised by containing a high amount of information in a reduced space. It is the purpose of this paper to compare and contrast the main aspects of the abstracts of four separate articles: one on the field of education, by Almerich, Suárez, Orellana, Bellorch, Bo and Gastaldo (2005) and three on the Medicine domain, and published by the British Medical Journal (BMJ).
According to Hubbuch (1996), abstracts describe the most relevant points in the article which they are summarising; hence their descriptive quality (cited in Pintos & Crimi, 2010). Moreover, they might also be expository in that they explain and provide information about the topic being analysed. They are typically found at the beginning of RAs, between the title page and the introduction. Nonetheless, they are generally the last part to be written, possibly due to the fact that this section of the article needs an extended text to refer to and – with the exception of conference papers and proposals, in which the abstracts express the intention of what the paper will be about – they tend to be composed after the whole article has been completed, looking to the past while its main parts are summarised (Pintos & Crimi, 2010).
While the four abstracts analysed in this paper share some characteristics, there are certain distinguishable areas in which they differ. All of them are part of RAs which have already been carried out and were not written for a conference or as a proposal for a research project; i.e., they report to the readers on the results of the studies performed: In Swales and Feak’s (1994) terms, they are “results-driven” (cited in Pintos & Crimi, 2010, p. 14). In addition, since their purpose is to transmit information, they all belong to the informative type. However, despite the common theory behind these brief summaries, researchers might have to adapt their work before they submit it according to the requirements of the journals which are to publish their articles. This might be one of the reasons for some of the dissimilarities among the abstracts which this paper attends to.
Concerning the appearance of the four abstracts, none of them is written on a separate sheet of paper, aspect which might be attributable to economic reasons determined by publishers. Furthermore, Almerich et al.’s (2005) article differs from the others in various aspects regarding format. As it belongs to the education field, this article is characteristically unstructured: It is written in a single unindented unbroken paragraph of which the heading – Abstract – is centred, and only the first letter is capitalised. Moreover, it provides keywords so that the article is more easily located from databases and websites. In spite of this, it does not follow American Psychological Association (APA) (2001) conventions strictly: Both headings – i.e.
Abstracts and
Keywords – are bolded, and the second one is not italicised. Additionally, and maybe in order to make it more noticeable,
Keywords is in colour.
Conversely, the three medical RA articles are structured: They are organised in different sections, each of which summarises an identifiable part of the article. Although all the subheadings are bolded according to APA Style (2001), the word Abstract does not follow such standards: It is in block letters, left aligned and written in colour; this latter attribute sometimes being allowed by certain journals. Even though structured abstracts appear to be longer than unstructured ones, this is not always the case. This delusion might be due to the fact that the latter do not contain subheadings, layout which seems to make them look shorter. However, of the four articles under analysis only the education one confines to the 150 to 250 word limit proposed by APA (2001) whereas the other three are longer –one almost reaching twice as much the recommended length. In all probability, the fact that the three medical abstracts belong to the same journal, BMJ, could indicate the reason why they share many characteristics among each other.
As for the organisation of the contents, the four abstracts seem to follow the Introduction-Methods-Results and Discussions (IMRAD) formula as they apparently report empirical studies. Still, while Almerich et al. (2005) respect the number of sentences which Swales and Feak (1994) and Hubbuch (1996) state that an abstract should have – “four to ten” (cited in Pintos & Crimi, 2010, p. 11) – the ones on the Medicine domain do not. This might be on account of their structured format, which requires the use of more words and more specific information: The Methods section in these abstracts, for instance, is longer than two sentences because they are subdivided into Design, Setting and Participants (Wijeysundera, Beattie, Elliot, Austin, Hux, & Laupacis, 2010; Jorgensen, Zahl, & Gotzsche, 2010; Martinez, Assimes, Mines, Dell’Aniello, & Suissa, 2010); Interventions (Wijeysundera et al., 2010); and Main Outcome Measures (Wijeysundera et al., 2010; Jorgensen et al., 2010).
In addition to what was stated above, the abstracts in the BMJ articles are, in Pintos and Crimi’s (2010) terms, “heavy on data”, as they include a significant amount of statistical information to support the results of their research in a condensed space (p. 13): All of them provide a large number quantitative data mainly in the Results section of the abstract. For their part, Almerich et al. (2005) supply only one figure when they refer to the participants. In line with the contents analysis, none of the four articles contains references to the literature reviewed, as this component is more representative of a conference abstract: “Conference abstracts generally include one or two selected references to recent literature” (Pintos & Crimi, 2010, p. 13). Since this latter type of abstract is primarily addressed to conference reviewers, they should appear credible and attractive enough to be accepted while at the same time related to acknowledged and contemporary sources.
Regarding linguistic features, the four abstracts show diverse characteristics concerning the use of full sentences, verb tenses, active/passive voice, negative words and abbreviations. Almerich et al.’s (2005) abstract is entirely written in full sentences in the present tense, possibly due to the contemporary relevance of the work that the authors may intend to emphasise. Except for the Methods section, which is in passive voice, the other parts are written in the active. There are no negative words in this abstract but there are two abbreviations, of which only the one related to the education field is explained, while the acronym connected to statistics is not. Being an unstructured blocked text, this abstract contains transitional words such as
therefore and
while, which are of utmost importance if the text is to be smooth and readable. Conversely, the abstracts in the BMJ articles do not include connectors, but they are made comprehensible by their structured design.
Although the three abstracts of the medical articles introduce the objectives, results and conclusions in full sentences, the Methods section is presented in phrases, probably in order to save space, as this part of the abstract is already longer than usual because of its subdivisions. The Results section in all three pieces is written in the past tense, possibly with the aim of emphasising what the researchers did and what the outcomes were. Yet the conclusions in the abstracts vary: In Wijeysundera et al.’s (2010) article it is in the present tense, showing the current relevance of the study; in Jorgensen et al.’s (2010), it is partly in the present and partly in the past, maybe to differentiate the consequences of the findings from the possible future implications; and, in Martinez et al.’s (2010), it is in the past, in apparent direct result of the past research carried out by the authors without recommendations for forthcoming studies on the topic.
With regard to the use of active/passive voice, the three articles make use of both constructions throughout the entire abstract. Even so, Jorgensen et al. (2010) and Martinez et al. (2010) also utilize the personal pronoun we in the Methods, Results and Conclusion sections. According to some authors, this approach shows the seemingly involvement of the writers with their research (Pintos & Crimi, 2010), especially on delicate areas such as the deaths caused by cancer or cardiac diseases exposed in these two articles. Moreover, Pintos and Crimi (2010) state that the sixth edition of APA Style (2008) opts for the use of this pronoun in order to reach a wider audience. As for the use of negative words, in the three BMJ articles there are both negative prefixes (non-cardiac, unscreened, antidepressants), which are accepted by Swales (1994) but there are also negated verbs, which are not (cited in Pintos & Crimi, 2010). Finally, there seems to be proper balance between academic and technical language: Abbreviations of terms which are frequently repeated are used in the three articles in order to save space, while specific terminology related to the names of certain drugs is utilised in Martinez et al. (2010) alone.
All in all, the main differences among the four abstracts seem to lie in the distinct fields they belong to. The BMJ articles share many features in both format and general characteristics and are particularly heavy on data due to the specific information in the form of numerals they provide, and to their structured organisation into subheadings. Conversely, the abstract in the education article is a single blocked text which summarises briefly the contents of the whole paper and does not provide much statistics. Nevertheless, the four abstracts provide accurate information and use non-evaluative language. They seem to avoid the use of both informal expressions and technical terms, especially the educational one, while at the same time they conserve their academic style. As a result of the balanced presentation of ideas in an objective manner, the four pieces fulfil their objective: They provide a clear summary of the main points of the whole paper while they attempt to build the reader’s desire to know more.
References
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Martínez, C., Assimes, T.L., Mines, D., Dell’Aniello, S., & Suissa, S. (2010). Use of venlafaxine compared with other antidepressants and the risk of sudden cardiac death or near death: A nested case-control study [Abstract].
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Pintos, V., & Crimi, Y. (2010).
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Wijeysundera, D.N., Beattie, W. S., Elliot, R.F., Austin, P. C., Hux, J.E., & Laupacis, A. (2010). Non-invasive cardiac stress testing before elective major non-cardiac surgery: Population based cohort study [Abstract].
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