A comparison of the full and short versions of the arthritis impact measurement scales

Abstract

?'his study examined the validity and reliability of full and short versions of the Arthritis Impact Measurement Scales (AIMS). One hundred fifty-five patlents with Rheumatoid Arthritis followed at a Universi ty Hospital Rheumatology Clinic completed the full AIMS at baseline, 6 months, 12 months, and 18 months. After reducing the 45-item AIMS to 22, alpha reliabilities and test-retest correlations showed that, with the exception of test-retest correlations for mobility at 6 months and for pain at 12 und 18 months, tne full and short scales were comparably reliable. Convergent validity correlations with theoretically related scales were also comparable. However, some of the short scales did not detect the same differences over time that the full scales did. Specifically, the short mobility, pain, anxiety, and depression scales were not as sensitive to change as the full scales.

The AIMS2‐SF. A short form of the arthritis impact measurement scales 2

“…Thus, it replicates the natural process of development of a new instrument with a predetermined framework, represented by the targeted content of the original instrument. Previously, there have been 2 reports of studies attempting to reduce the original AIMS questionnaire (45 items in 9 dimensions) (18,19). Both used an approach based on statistical item analysis methodology.…”

The AIMS2-SF: A short form of the arthritis impact measurement scales 2

“…In the selection process, we assigned a hierarchi- (18,19). Both used an approach based on statistical item analysis methodology.…”

Chronic Pain in Inflammatory Arthritis: Mechanisms, Metrology, and Emerging Targets—A Focus on the JAK-STAT Pathway

“…The domain “pain” is predominant also in assessing HRQoL in patients with RA. It strongly influences the scores of disease-specific scales, such as the Arthritis Impact Measurement Scales (AIMS) and AIMS2 [ 112 , 113 ], and well-known generic scales, such as the European Quality of Life-5 Dimensions (EQ-5D) and Medical Outcomes Study (MOS) 36-Item Short-Form Health Survey (SF-36) [ 114 , 115 ]. Table 1 summarizes the available scales to measure pain in patients with RA.…”