Relationship between lymphocyte count and risk of infection in Japanese rheumatoid arthritis patients treated with tofacitinib
Modern Rheumatology 2024;34:1115–24 doi: 10.1093/mr/roae030
Tanaka et al. observed that in Japanese patients with rheumatoid arthritis treated with tofacitinib, those with absolute lymphocyte counts (ALCs) <0.5x10³ cells/mm³ had a higher risk of serious infections and herpes zoster events compared to patients with higher ALC levels. This threshold may help identify increased infection risk in this population