a significant trendp < 0.001
For RCII, the association was stronger and more consistent: per SD increase (OR 1.23, 95% CI: 1.00–1.51, p = 0.046) and Q4 (OR 5.20, 95% CI: 2.24–12.08, p < 0.001) both showed significant independent associations, with a significant trend across quartiles ( p < 0.001).