Table 4 —

Result of Poisson model (all subjects combined): relative risk of amputation, depending on calendar year, age, sex, and diabetic status

Relative risk (95% CI)P value
Calendar year*0.99 (0.95–1.03)0.51
Age 80-155.38 (47.95–952.83)<0.01
Age 60–7968.65 (21.53–418.24)<0.01
Age 40–5928.64 (8.87–75.40)<0.01
Male2.00 (1.61–2.49)<0.01
Diabetes20.50 (15.84–26.81)<0.01
  • *

    * Relative risk per calendar year, baseline 1990;

  • baseline of age: 0–39 years.