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Table 4 Chi square test showing perforation rate by different morphologies

From: Crestal endoscopic approach for evaluating sinus membrane elevation technique

Morphology No perforation Perforation P value
No. (%) No. (%)
Flat (n = 4) 4 (100) 0 X2 = 4.80 P (chi) = 0.09
Irregular (n = 4) 2 (50.00) 2 (50.00)
Polyp (n = 4) 4 (100) 0
  1. Percentage were expressed as row percentage