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Table 3 Summary of comparisons between participants with and without follow-up data at 12 months and 24 months following recruitment

From: Quantitative contrast enhanced dual energy CT to predict avascular necrosis: a feasibility study of proximal humerus fractures

Characteristics 12 months 24 months
Study Lost p Study Lost p
n 20 18   14 24  
Age (SD) 51 (17.6) 56 (17.3) NSa 46.1 (17.3) 57.6 (16.3) 0.047a
Male 8 8 NSb 10 12 NSb
Female 12 10 4 12
AA 3 8 NSb 2 9 NSb
White 17 10 12 15
Diabetes Mellitus 4 3 NSb 1 6 NSb
Steroids 1 0 NSb 1 0 NSb
  1. aIndependent T-test
  2. bFischer Exact Test Chi-Square (2-sided)