Table 3 A multivariate Cox proportional hazards model for the occurrence of new cardiovascular events in the 2-year follow-up period according to the ADAMTS13 tertile groups in 98 chronic hemodialysis patients.

From: Association between ADAMTS13 deficiency and cardiovascular events in chronic hemodialysis patients

Variablesa

Hazard ratio

95% Confidence interval

p

ADAMTS13 tertiles (range of ADAMTS13 activity)

 High tertile (46–104%)

1 (reference)

  

 Middle tertile (30–45%)

5.71

0.64–51.31

0.1

 Low tertile (7–29%)

14.56

1.81–116.91

0.01

CHD (vs. without)

4.09

1.24–13.53

0.02

DM (vs. without)

4.59

0.97–21.83

0.06

  1. CHD = coronary heart disease, DM = diabetes mellitus.
  2. aVariables with a p value < 0.1 in univariate analysis at Table 3 were selected into this multivariate analysis using the method of “forward stepwise selection” including ADAMTS13 tertiles, CHD, DM, current uses of clopidogrel and aspirin.
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