borderline significantP = .054
The systemic immune-inflammation index emerged as a significant risk factor (OR: 1.008, 95% CI: 1.003–1.012, P = .002), indicating that each unit increase in SII was associated with a 1.008% increase in cognitive impairment risk.Among the evaluated inflammatory indices, the lymphocyte-to-monocyte ratio (LMR) exhibited a borderline significant association with cognitive impairment (OR: 0.651, 95% CI: 0.421–1.008, P = .054), suggesting a potential, albeit nonsignificant, protective trend (Table 4 ). 3.4.