RNASEL and metabolic syndrome: With every 5 μg/ml increase in serum RNase-L concentration, the risk of MetS (OR 0.83, 95% CI 0.71–0.98, P = 0.028), central obesity (OR 0.82, 95% CI 0.71–0.94, P = 0.005), or low HDL-C (OR, 0.86, 95% CI 0.74–1.00, P = 0.042) was reduced by 14–18% (Table 5).