Skip to main content

Table 3 Number of correct classification and results of Cohen Kappa analysis

From: The effectiveness of ultrasonography in verifying the placement of a nasogastric tube in patients with low consciousness at an emergency center

Evaluation method

Correct placement

Incorrect placement

K

p

Radiology

44*(93.6)

3 (6.4)

  

Ultrasound

39 (83.0)

8 (17.0)

0.299

0.018

Auscultation

46 (97.9)

1 (2.1)

0.484

<0.001

pH measuring

32 (86.5)

5 (13.5)

0.444

0.005

  1. *Number (%).
  2. pH measuring: The contents were not aspirated in 10 patients.