Correction: Not all moderate disease is the same - Identification of disability trajectories among patients with rheumatoid arthritis and moderate disease activity.

[This corrects the article DOI: 10.1371/journal.pone.0215999.].

In the ‘Trajectory group characteristics’ subsection of the Results, there is an error in the fourth sentence. The correct sentence is: There was no significant relationship between increasing HAQ trajectory group and death during follow-up, but some higher trajectory groups had greater proportion of patients who started a biologic (see S1 Table).

There are several errors in S1 Table. Please view the correct S1 Table below.

Outcomes over follow-up, stratified by trajectory group.

† Hazard ratios calculated using Cox regression adjusted for age and gender.

‡ Group 2 chosen as reference category for biologic switching analysis, as group 1 only had one failure event, and this resulted in failures of the proportional hazards assumption. The proportional hazards assumption was met when group 2 was used as the reference category.

CI = confidence interval

bDMARD = biologic disease modifying anti-rheumatic drug.

(DOCX)

Click here for additional data file.