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Table 2 Frequency and degree of agreement (Cohen's kappa/κ) between expert and clinicians regarding all diagnoses and primary diagnoses only (N = 250)

From: Classification of bipolar disorder in psychiatric hospital. a prospective cohort study

 

All diagnoses

Primary diagnosese

 

Na

Expert

nb

(%)

Clin.

nc

(%)

nd

κ

Na

Expert

nb

(%)

Clin.

nc

(%)

nd

κ

Organic disorders

7

6

2

1

0.24*

5

5

0

0

0

F0

 

(2)

(1)

   

(2)

   

Substance use disorder

94

79

45

30

0.33*

18

4

16

2

0.18*

F10-19 (excl. F1X.5)

 

(32)

(18)

   

(2)

(6)

  

Substance induced psychosis F1X.5

16

16

7

7

0.59*

13

13

7

7

0.69*

  

(6)

(3)

   

(5)

(3)

  

Schizophrenia...

40

30

32

22

0.67*

36

30

25

19

0.65*

F2

 

(12)

(13)

   

(12)

(10)

  

Affective disorder

206

198

158

150

0.47*

200

190

148

138

0.45*

F3

 

(79)

(63)

   

(76)

(59)

  

Bipolar disorder

56

56

18

18

0.42*

56

56

18

18

0.42*

F30-31

 

(22)

(7)

   

(22)

(7)

  

Major depression

173

139

137

103

0.43*

167

133

127

93

0.41*

F32-33

 

(56)

(55)

   

(53)

(51)

  

Anxiety disorder

105

100

21

16

0.15*

6

4

4

2

0.49*

F40-45 (excl. F43)

 

(40)

(8)

   

(2)

(2)

  

Other

77

31

61

15

0.19*

50

4

50

4

0.12*

  

(12)

(24)

   

(2)

(20)

  
  1. Na = number of patients given the diagnosis either by expert or by clinician
  2. nb = number of patients given the diagnosis by the expert
  3. nc = number of patients given the diagnosis by a clinician
  4. nd = number of patients given the diagnosis by both the expert and a clinician
  5. Primary diagnosise = The diagnosis considered the reason for hospitalizalization by the expert, and the diagnosis listed first in the discharge letter by the clinician
  6. *P < 0.001