APPENDIX 1.

English wording of the 3 most omitted CQR-items, including corresponding omission rates in patients with RA receiving DMARD.

  • Item 13: “If I don’t take my antirheumatic medicines regularly, the inflammation returns.”

    Missing values (questioning 1): 9 (7.6%)

    Missing values (questioning 2): 25 (21.2%)

  • Item 14: “If I don’t take my antirheumatic medicines, my body warns me.”

    Missing values (questioning 1): 7 (5.9%)

    Missing values (questioning 2): 24 (20.3%)

  • Item 18: “If I don’t take my antirheumatic medicines, I have more complaints.”

    Missing values (questioning 1): 9 (7.6%)

    Missing values (questioning 2): 24 (20.3%)

  • Annotation: Omission rates refer to the 118 patients who returned the baseline questionnaire package, at least completing some of the CQR items. Numbers and percentages for second questioning are also higher because of patients completing the first, but not the second, questionnaire package. CQR: Compliance-Questionnaire-Rheumatology; RA: rheumatoid arthritis; DMARD: disease-modifying antirheumatic drug.