Comparison of the Health Assessment Questionnaire and Arthritis Impact Measurement Scale in patients with psoriatic arthritis.

Objective: To determine which of two instruments, the Health Assessment Questionnaire (HAQ) and the Arthritis Impact Measurement Scales (AIMS), was more closely correlated with the main parameters reflecting activity and severity of psoriatic arthritis.

Methods: Both instruments were administered to 72 consecutive patients with psoriatic arthritis.

Results: Global HAQ and AIMS scores were closely correlated with each other (rs = 0.