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Table 2 Comparison of portal placement between the two groups

From: Mapping system for portal placement in laparoscopic procedures of small animals

Placement Group Mean distance from desired placement (mm) Standard deviation P value
Placement 1, Procedure 1 A 0.000 0.000 .000
  B 9.550 9.922  
Placement 2, Procedure 1 A 0.000 0.000 .000
  B 27.630 12.037  
Placement 3, Procedure 1 A 0.000 0.000 .000
  B 27.500 9.415  
Placement 1, Procedure 2 A 1.900 5.029 .022
  B 7.170 11.384  
Placement 2, Procedure 2 A 2.160 6.378 .000
  B 22.720 16.555  
Placement 3, Procedure 2 A 1.480 6.104 .002
  B 10.560 13.988  
Placement 4, Procedure 2 A 3.610 13.328 .004
  B 13.660 13.656