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Table 3 Means (SE) of Intraocular Pressure

From: Efficacy of sub-Tenon's block using an equal volume of local anaesthetic administered either as a single or as divided doses. A randomised clinical trial

  Mean (SE) 95% CI
Single (n = 30)   
   Pre- injection 16.3 (0.5)  
   Post- injection 18.2 (0.9)  
   Paired Difference -1.9 (0.9) -3.7 – -0.1
Divided (n = 30)   
   Pre- injection 16.2 (0.6)  
   Post- injection 19.7 (1.3)  
   Paired Difference -3.5 (1.3) -6.2 – -0.7
  1. Note: SE = standard error or mean.