Table 2 Cox regression analysis of variables associated with amputation

Age (years)

1.08 (1.02–1.16)

0.01

1.09 (1.02–1.16)

 Sex

1.40 (0.32–6.17)

0.66

–

 BMI 1 kg/m² increase

0.98 (0.88–1.10)

0.74

–

 SBP 10 mmHg increase

1.13 (0.86–1.47)

0.39

–

DBP 5 mmHg increase

0.79 (0.63–0.99)

0.04

0.81 (0.64–1.01)

 LDL-cholesterol 1 mmol/L increase

1.42 (0.85–2.37)

0.18

–

 HDL-cholesterol 1 mmol/L increase

0.67 (0.17–2.63)

0.56

–

 Current smoking

1.25 (0.46–3.35)

0.66

–

HbA1c (%)

1.38 (1.11–1.71)

< 0.01

1.46 (1.17–1.81)