Fig. 2

Gastroesophageal symptoms on RA disease activity using the GerdQ questionnaire in 518 patients before propensity score matching (A) GerdQ scores for the RA low disease activity to remission group (n = 412) and the moderate to high disease activity group (n = 106). (B) Percentage of the RA low disease activity to remission group and the moderate to high disease activity group with high GerdQ scores. (C) Gastric symptoms on the GerdQ questionnaire in the low disease activity to remission group and the moderate to high disease activity group. Comparisons between the two groups’ mean levels and categorical data were analyzed using the Mann-Whitney and Chi-squared test (*p < 0.05) Abbreviation: RA; rheumatoid arthritis, CDAI; Clinical Disease Activity Index