Characteristics of referred and non-referred patients and actual population.

p is difference between referred and non-referred groups;*Median age presented because data were not normally distributed, and mean age also presented to enable comparison to original PP Study;†Mann Whitney U Test;‡Independent sample t-test; all others are Chi-square test;§Exact method used as cell count assumptions not met;**Comparison of hospitals where there were >10 (n = 6) amputations with ≤10 amputations (n = 7); Actual population is presented to enable comparison of characteristics, no statistical analysis was performed; not all percentages add up to 100 because of rounding.