Table 3 Predictors of overall and CV mortality using Cox proportional hazards model in the multivariable analysis in all 941 study patients

From: Combination of low ankle-brachial index and high ankle-brachial index difference for mortality prediction

Parameter

Overall mortality

CV mortality

HR (95% CI)

P

HR (95% CI)

P

ABI value (per 0.125)

0.771 (0.684, 0.869)

<0.001

0.730 (0.602, 0.886)

0.001

ABI < 0.9

2.537 (1.654, 3.891)

<0.001

2.601 (1.270, 5.328)

0.009

ABID value (per 0.074)

1.304 (1.182, 1.438)

<0.001

1.274 (1.083, 1.498)

0.003

ABID ≥ 0.17

2.654 (1.739, 4.051)

<0.001

2.587 (1.282, 5.221)

0.008

ABI score

1.881 (1.476, 2.396)

<0.001

1.865 (1.249, 2.786)

0.002

  1. HR was calculated by one standard deviation change in the continuous variables. ABI score was calculated by assigning 1 point for ABI < 0.9 and 1 point for ABID ≥ 0.17
  2. Covariates in the multivariable model included significant variables in the univariable analysis except ABI-related parameters
  3. HR hazard ratio, CI confidence interval, CV cardiovascular, other abbreviations as in Table 1
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