Association between the systemic immune-inflammation index and anemia among US children: national health and nutrition examination survey (NHANES), 2001–2018

Our findings indicate that SII levels are positively linked to anemia in children. Monitoring SII levels may facilitate early identification of high-risk pediatric anemia groups, enabling targeted interventions. SII could be a cost-effective and simple anemia identification tool, though this needs confirmation via more prospective studies. This approach holds potential for enhancing public health policy and child health management.