Nunes BP, Chiavegatto Filho ADP, Pati S, et al. Contextual and individual inequalities of multimorbidity in Brazilian adults: a cross-sectional national-based study BMJ Open 2017;7:e015885. doi: 10.1136/bmjopen-2017-015885.

This article was previously published with an error.

Two conditions used to create multimorbidity were incorrectly explained in the methods section:

1. Hypercholesterolaemia has included individuals presenting the condition for more than 1 year. The information about the time was not described in the original version.

2. Spinal column problem was based on self-reported information from the interviewee. In the original text, the condition was described as a self-reported medical diagnosis.