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Table 1 Percentage of oil and air present in each group, according to the type of syringe

From: Release of silicone oil droplets from syringes

  Group P* P
1 2 3 4 G3 × G4
Presence of oil
 Syringe 1, n (%) 5/5 (100) 3/3 (100) 2/5 (40) 5/5 (100) 0.037 0.067
 Syringe 2, n (%) 5/5 (100) 3/3 (100) 0/5 (0) 0/5 (0) 0.001 1.000
 Syringe 3, n (%) 5/5 (100) 3/3 (100) 0/5 (0) 5/5 (100) < 0.001 0.008
Presence of air
 Syringe 1, n (%) 0/5 (0) 0/3 (0) 1/5 (20) 0/5 (0) 1.000 1.000
 Syringe 2, n (%) 0/5 (0) 0/3 (0) 0/5 (0) 2/5 (40) 0.216 0.444
 Syringe 3, n (%) 1/5 (20) 2/3 (66.7) 0/5 (0) 0/5 (0) 0.093 1.000
  1. n number of samples, P level of significance
  2. *Fisher’s exact test significance level
  3. Fisher’s exact test significance level considering groups G3 and G4