Correction to: Understanding Plain English Summaries: A Comparison of two Approaches to Improve the Quality of Plain English Summaries in Research.

[This corrects the article DOI: 10.1186/s40900-017-0064-0.].

Correction

After publication of our article [1] it has come to our attention that Fig. 3 was accidentally omitted. In the section “Ease of reading”, the sentence “FRE scores were recorded for the original, author-revised and independently edited PES (Fig. 2).” should read “FRE scores were recorded for the original, author-revised and independently edited PES (Fig. 3).” Figure 3 and its legend appear below.

Fig. 3

FRE score for summaries compared across three groups. Horizontal dashed line indicates an FRE of 50, which is approximately equivalent to a broadsheet newspaper [27]