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Table 4 Demographics and comorbidities

From: The effect of cumulative glycemic burden on the incidence of diabetic foot disease

Cohort with foot ulcers vs. cohort without, diabetics only
  No foot ulcer (N = 21,270) Foot ulcer (N = 1643) P value
N % N %  
Gender      
 Female 11,204 52.7 697 42.4 <.001
 Male 10,063 47.3 945 57.5  
Race      <.001
 American Indian or Alaskan Native 60 0.3 1 0.1  
 Asian 851 4 12 0.7  
 Black or African American 5390 25.3 530 32.3  
 Declined 1562 7.3 63 3.8  
 Hispanic 143 0.7 9 0.5  
 Native Hawaiian or other Pacific Islander 17 0.1 0 0  
 Other 3204 15.1 276 16.8  
 Unable to answer 4 0 1 0.1  
 Unknown 678 3.2 15 0.9  
 White 9307 43.8 734 44.7  
Smoking 9098 45 829 51.5 <.001
Diabetic nephropathy 2176 6.9 635 35.8 <.001
Diabetic retinopathy 3461 11 735 41.4 <.001
Diabetic neuropathy 2735 8.7 897 50.5 <.001
Hypertension 16,992 79.9 1577 96 <.001
Peripheral vascular disease 2281 10.7 813 49.5 <.001
Coronary artery disease 6149 28.9 1002 61 <.001
Chronic kidney disease 4300 20.2 916 55.8 <.001
Age, year 62 (15)   66 (13)   <.001
BMI 31.8 (7.9)   31.3 (8.9)   0.002
Mean number of HgA1c values drawn 10 (8)   11 (9)   <.001
HgA1c, mean 7.2 (1.4)   7.7 (1.6)   <.001
  1. Significance defined as P < .05. Continuous variables expressed as mean (standard deviation)