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Table 2 The results of logistic regression of method used on the occurrence of perforation

From: Comparison of three different methods of internal sinus lifting for elevation heights of 7 mm: an ex vivo study

Methods BAOFSE BALLOON CAS kit
Number of cases 12 12 12
Number of perforations 7 1 1
Percentage 58.4% 8.3% 8.3%
Comparison of methods regarding perforations (odds ratio)
  Balloon\BOAFSE Balloon\CAS kit CAS kit\BAOFSE
Odds ratio 0.091 1 0.091
p value 0.022 1 0.022
Confidence interval Lower Upper Lower Upper Lower Upper
  1.437 160.972 0.55 18.085 1.437 160.972
Reference group BAOSFE BAOSFE CAS kit