CST3 and Stroke: Of note, the association between cystatin C and stroke seemed stronger among female participants, and the adjusted ORs for participants in the second, third, and fourth quartile were 1.505 (95% CI, 1.012–2.258), 1.643 (95% CI, 1.110–2.457), and 1.743 (95% CI, 1.158–2.647), respectively.