Table 1

Outcome measures collected at baseline

• Demographical details (first name, age, sex, E-mail, first part of post code)

• Condition being treated

• Previous treatment with biologic agents

• Current medications including methotrexate

• Functional status and general quality of life

- CGI-S

- EQ-5D and EQ VAS

• Disease-specific quality of life

- HAQ for patients with rheumatoid arthritis

- CHAQ for patients with juvenile idiopathic arthritis (JIA)

- DSLI for patients with psoriasis

• DAS-28 for patients with rheumatoid arthritis

CGI-S Clinical Global Impression - Severity of Illness, CHAQ Child Health Assessment Questionnaire, DAS-28 Disease Activity Score-28, DSLI Dermatology Life Quality Index, EQ-5D EuroQol 5 dimensions, EQ VAS, EuroQol visual analogue scale, HAQ Health Assessment Questionnaire

Wade et al. BMC Medical Research Methodology 2011 11:91   doi:10.1186/1471-2288-11-91