Data Errors in Tables 1 and 2

In the Original Investigation titled “Safety and Efficacy of Methotrexate for Chinese Adults With Psoriasis With and Without Psoriatic Arthritis” by Yan et al,¹ published online January 30, 2019, in Table 1, the P value for smoking was corrected, and in Table 2, the percentage of patients without psoriatic arthritis who achieved 90% reduction from baseline Psoriasis Area Severity Index score was corrected. This article has been corrected online.