Association between systemic immune-inflammation index and atopic dermatitis: a cross-sectional study of NHANES 2001–2006

Our findings suggested SII higher than 330 × 10⁹/L was positively associated with a high risk of atopic dermatitis in US adults with BMI <30. To our knowledge, this is the first study focused on the risk of higher SII on atopic dermatitis in the outpatient US population. Currently, there are differences in the standards used to diagnose atopic dermatitis across countries, and our study may have implications.