Source: https://plos.org/resource/how-to-write-a-great-abstract
How to Write an Abstract
Expedite peer review, increase search-ability, and set the tone for your study
The abstract is your chance to let your readers know what they can expect from your article. Learn how to write a clear, and concise abstract that will keep your audience reading.
How your abstract impacts editorial evaluation and future readership
After the title, the abstract is the second-most-read part of your article. A good abstract can help to expedite peer review and, if your article is accepted for publication, it’s an important tool for readers to find and evaluate your work. Editors use your abstract when they first assess your article. Prospective reviewers see it when they decide whether to accept an invitation to review. Once published, the abstract gets indexed in PubMed and Google Scholar, as well as library systems and other popular databases. Like the title, your abstract influences keyword search results. Readers will use it to decide whether to read the rest of your article. Other researchers will use it to evaluate your work for inclusion in systematic reviews and meta-analysis. It should be a concise standalone piece that accurately represents your research.
What to include in an abstract
The main challenge you’ll face when writing your abstract is keeping it concise AND fitting in all the information you need. Depending on your subject area the journal may require a structured abstract following specific headings. A structured abstract helps your readers understand your study more easily. If your journal doesn’t require a structured abstract it’s still a good idea to follow a similar format, just present the abstract as one paragraph without headings.
Background or Introduction – What is currently known?
Start with a brief, 2 or 3 sentence, introduction to the research area.
Objectives or Aims – What is the study and why did you do it?
Clearly state the research question you’re trying to answer.
Methods – What did you do?
Explain what you did and how you
did it. Include important information about your methods, but avoid the
low-level specifics. Some disciplines have specific requirements for
abstract methods.
- CONSORT for randomized trials.
- STROBE for observational studies
- PRISMA for systematic reviews and meta-analyses
Results – What did you find?
Briefly give the key findings
of your study. Include key numeric data (including confidence intervals
or p values), where possible.
Conclusions – What did you conclude?
Tell the reader why your findings matter, and what this could mean for the ‘bigger picture’ of this area of research.
Writing tips
The main challenge you may find when writing your abstract is keeping it concise AND convering all the information you need to.
Do
- Keep it concise and to the point. Most journals have a maximum word count, so check guidelines before you write the abstract to save time editing it later.
- Write for your audience. Are they specialists in your specific field? Are they cross-disciplinary? Are they non-specialists? If you’re writing for a general audience, or your research could be of interest to the public keep your language as straightforward as possible. If you’re writing in English, do remember that not all of your readers will necessarily be native English speakers.
- Focus on key results, conclusions and take home messages.
- Write your paper first, then create the abstract as a summary.
- Check the journal requirements before you write your abstract, eg. required subheadings.
- Include keywords or phrases to help readers search for your work in indexing databases like PubMed or Google Scholar.
- Double and triple check your abstract
for spelling and grammar errors. These kind of errors can give potential
reviewers the impression that your research isn’t sound, and can make
it easier to find reviewers who accept the invitation to review your
manuscript.
Your abstract should be a taste of what is to come in the rest of your article.
Don’t
- Sensationalize your research.
- Speculate about where this research might lead in the future.
- Use abbreviations or acronyms (unless absolutely necessary or unless they’re widely known, eg. DNA).
- Repeat yourself unnecessarily, eg. “Methods: We used X technique.Results: Using X technique, we found…”
- Contradict anything in the rest of your manuscript.
- Include content that isn’t also covered in the main manuscript.
- Include citations or references.
Tip: How to edit your work
Editing is challenging, especially if you are acting as both a writer and an editor. Read our guidelines for advice on how to refine your work, including useful tips for setting your intentions, re-review, and consultation with colleagues.
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