Research Article

Tissue Kallikrein Activity, Detected by a Novel Method, May Be a Predictor of Recurrent Stroke: A Case-Control Study

Table 4

The association between TK activity and stroke recurrence.

Stroke recurrenceQuartile 1Quartile 2Quartile 3Quartile 4

Total stroke, 80808081
 Events, number (%)42 (52.5)25 (31.3)21 (26.3)17 (21)
 Unadjusted (RR)10.55 (0.34–0.91)0.43 (0.25–0.72)0.32 (0.18–0.54)
value 0.0190.001<0.001
 Adjusted (RR)10.59 (0.35–0.99)0.44 (0.25–0.78)0.33 (0.18–0.61)
value 0.0480.005<0.001
Ischemic stroke40375542
 Events, number (%)22 (55)14 (37.8)15 (27.3)7 (16.7)
 Unadjusted (RR)10.71 (0.36–1.39)0.45 (0.23–0.87)0.25 (0.11–0.58)
value 0.3210.0180.001
 Adjusted (RR)10.90 (0.43–1.89)0.59 (0.28–1.22)0.30 (0.12–0.75)
value0.7790.1550.01
Hemorrhagic stroke40432539
 Events, number (%)20 (50)11 (25.6)6 (24)10 (25.6)
 Unadjusted (RR)10.44 (0.21–0.92)0.39 (0.16–0.98)0.39 (0.18–0.84)
value 0.0280.0460.016
 Adjusted (RR)10.27 (0.12–0.63)0.16 (0.06–0.46)0.17 (0.07–0.46)
value0.0020.001<0.001

TK activity in quartile 1 (<1.063 Eu/mL), quartile 2 (1.063–1.667 Eu/mL), quartile 3 (1.667–1.988 Eu/mL), and quartile 4 (>1.988 Eu/mL).
TK: tissue kallikrein; RRs: relative risks. RRs (95% confidence interval). Adjusted RRs have been adjusted for age, sex, presence or absence of hypertension, diabetes, hyperlipidemia, smoking, weight, BMI, SBP, DBP, total cholesterol, triglyceride, and HDL.