Lack of comparability of immunoassays for rheumatoid factor isotypes.
Maria InfantinoBoaz PaltererSilvia PancaniMaurizio BenucciValentina GrossiMariangela ManfrediNicola BizzaroPublished in: Clinical chemistry and laboratory medicine (2023)
The poor agreement observed in this study indicates substantial lack of comparability among assays for RF isotypes. Harmonization of these tests requires further efforts before their measurement can be used in clinical practice.