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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