Table 5

 QTc when multiple Cox regression was performed with the addition of ABPI and RR variables

Regression coefficientStandard errorp Value
*Significant difference (p<0.05).
Baseline
    QTcmax0.0150.004<0.001*
    ABPI−0.0331.3880.981
    RR interval−0.6321.5830.690
    RR ratio−0.1141.4890.939
    Systolic BP0.0250.012<0.05*
    Diastolic BP−0.0270.0240.279
3 years
    QTcmax0.0140.004<0.001*
    ABPI−2.6451.046<0.05*
    RR interval0.1711.7060.920
    RR ratio0.3441.9260.858
    Systolic BP−0.0140.0150.358
    Diastolic BP0.0500.0400.208
6 years
    QTcmax0.0250.006<0.001*
    ABPI−0.0171.0410.946
    RR interval−0.8062.3470.731
    RR ratio5.0132.054<0.05*
    Systolic BP0.0410.0290.163
    Diastolic BP−0.0030.0670.967