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Choosing Wisely in Daily Practice: An Intervention Study on Antinuclear Antibody Testing by Rheumatologists
Author(s) -
Lesuis Nienke,
Hulscher Marlies E. J. L.,
Piek Ester,
Demirel Hatice,
van der LaanBaalbergen Nicole,
Meek Inger,
van Vollenhoven Ronald F.,
den Broeder Alfons A.
Publication year - 2016
Publication title -
arthritis care and research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.032
H-Index - 163
eISSN - 2151-4658
pISSN - 2151-464X
DOI - 10.1002/acr.22725
Subject(s) - medicine , confidence interval , rheumatology , anti nuclear antibody , odds ratio , physical therapy , logistic regression , intervention (counseling) , antibody , immunology , psychiatry , autoantibody
Objective To assess the effect of a simple intervention on antinuclear antibody (ANA) test overuse by rheumatologists. Methods This was an explorative, pragmatic, before‐and‐after, controlled implementation study among rheumatologists working at 3 rheumatology departments in secondary and tertiary care centers in The Netherlands. The intervention was given in all study centers separately and combined education with feedback. Six outcome measures describe the intervention effects: the ANA/new patient ratio (APR), difference with the target APR, percentage of positive ANA tests, percentage of repeated ANA testing, percentage of ANA‐associated diseases, and APR variation between rheumatologists. Outcomes were compared between the pre‐ and postintervention period (both 12 months) using (multilevel) logistic regression or F testing. Results are reported together for centers 1 and 2, and separately for center 3, because ANA tests could not be linked to an individual rheumatologist in center 3. Results The APR decreased from 0.37 to 0.11 after the intervention in centers 1 and 2 (odds ratio [OR] 0.19, 95% confidence interval [95% CI] 0.17–0.22, P < 0.001) and from 0.45 to 0.30 in center 3 (OR 0.53, 95% CI 0.45–0.62, P < 0.001). The percentage of repeated ANA requests in all centers and the APR variation for centers 1 and 2 decreased significantly. Only in center 3 did the percentage of ANA‐associated diseases increase significantly. Conclusion A simple intervention resulted in a relevant and significant decrease in the numbers of ANA tests requested by rheumatologists, together with an improvement on 3 other outcome measures.