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Table 2 CXRs and Ct requested and relative costs: comparison between Groups A and B

From: Could the use of bedside lung ultrasound reduce the number of chest x-rays in the intensive care unit?

  Group A Group B P
Number of CXRs 1.810 961 0.012
Number of CXRs per patient 0.97 0.42  
Cumulative estimated cost due to CXRs (€) 47.090 24.986 0.012
Number of CT 87 89  
  1. Data are presented as total number. CXRs; chest X-rays