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Kaplan-Meier curves for death at 12 months for diabetics (DM) and nondiabetics (non DM): (A) entire sample, (B) critical limb ischemia subgroup, and (C) claudicant subgroup. Nineteen observations were excluded due to missing data on time of death event. The standard error did not exceed 10% at 12 months for both groups. Probs, probability.
