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Table 4 Classification and incidence rate of occult hernia

From: The incidence and analysis of ipsilateral occult hernia in patients undergoing hernia repair: a single institution retrospective study of 1066 patients

Types of hernia Occult hernia Non-occult hernia Number χ2 value P value
Total 91 (7.95%) 1053 (92.05%) 1144 χ2 = 112.68 P<0.001
Indirect hernia 28 (2.45%) 829 (72.46%) 857 χ2 = 83.19 *P<0.001
Direct hernia 47 (4.11%) 183 (15.99%) 230 χ2 = 0.78 #P>0.05
Femoral hernia 14 (1.23%) 40 (3.52%) 54 χ2 = 59.31 P<0.001
Obturator hernia 1 (0.08%) 1 (0.08%) 2 / /
Spiglian hernia 1 (0.08%) 0 1 / /
  1. P = occult hernia vs non-occult hernia
  2. *P = indirect hernia vs direct hernia
  3. #P = direct hernia vs femoral hernia
  4. P = femoral hernia vs indirect hernia