Skip to main content

Table 4 The kappa coefficient between the classification on basis of the assessment by the physicians, the Grading Systems and the PainDETECT

From: Avoiding Catch-22: validating the PainDETECT in a population of patients with chronic pain

  

PainDETECT (yes / no)

Grading A

Grading B

Assessment B

Assessment A

n

291

286

288

291

K

0.34

0.48

0.32

0.49

PA

74.6

76.2

67.4

78.4

Pi

0.48

0.32

0.26

0.38

Assessment B

n

291

286

288

 

K

0.27

0.38

0.48

 

PA

67.7

71.0

75.0

 

Pi

0.33

0.28

0.22

 

Grading A

n

286

 

283

286

K

0.18

 

0.63

0.38

PA

61.5

 

82.0

71.0

Pi

0.27

 

0.16

0.28

Grading B

n

288

   

K

0.17

   

PA

58.3

   

Pi

0.05

   
  1. Classification of NePC is based on physicians’ assessment of the patients and on the Grading Systems
  2. n = number of patients in the analysis; K = Cohen’s kappa coefficient; PA (%) = percentage of agreement between two outcome variables; Pi = Prevalence index
Back to article page

BMC Neurology

ISSN: 1471-2377

Contact us