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Table 6 Average resource usage

From: Cost-effectiveness of cryotherapy versus salicylic acid for the treatment of plantar warts: economic evaluation alongside a randomised controlled trial (EVerT trial)

   Cryotherapy Salicylic acid Difference
Average number of treatment visits N 109 120  
  Mean (SE) 3.59 (0.072) 1.94 (0.38) 1.65(p < 0.000)
  SD 0.75 0.42  
  Median (min, max) 4 (1, 5) 2 (1, 4)  
  Missing (%) 8 (7%) 3 (2%)  
Average number of additional GP visits N 82 89  
  Mean (SE) 0.04 (0.03) 0.01 (0.01) 0.03(p = 0.376)
  SD 0.25 0.11  
  Median (min, max) 0 (0, 2) 0 (0, 1)  
  Missing (%) 35 (30%) 34 (28%)  
Average number of additional nurse visits N 82 89  
  Mean (SE) 0.05 (0.03) 0.08 (0.04) 0.03(p = 0.530)
  SD 0.27 0.34  
  Median (min, max) 0 (0, 2) 0 (0, 2)  
  Missing (%) 35 (30%) 34 (28%)  
Average number of tubes of Verrugon N NA 116 NA
  Mean (SE) NA 1.25 (0.04)  
  SD NA 0.44  
  Median (min, max) NA 1 (1, 2)  
  Missing (%) NA 7 (6%)  
Average number of cryotherapy treatments given to patients N 109 NA NA
  Mean (SE) 3.49 (0.08) NA  
  SD 0.80 NA  
  Median (min, max) 4 (1, 5) NA  
  Missing (%) 8 (7%) NA  
  1. NA Not applicable