Table 4 Claimants classified according to major causal categories of mental disorder in 1999 and 2014
Category of disorderDWP data classificationNumber of claimants 1999a (thousands)% of total mental disorder claimants 1999 (95% CI)Number of claimants 2014 (thousands)% of total mental disorder claimants 2014
Depressive disordersb-Depressive episode
-Recurrent depressive disorder
-Persistent mood disorder
-Unspecified mood disorder
344.741.5 (41.0–42.0)513.944.2
Anxiety and other neurotic disordersb-Phobic disorder
-Other anxiety disorder
-Reaction to severe stress
-Dissociative disorder
-Somatoform disorder
231.127.8 (27.4–28.2)263.122.6
Psychotic disordersb-Schizophrenia
-Persistent delusional disorder
-Manic episode
-Unspecified non-organic psychosis
69.48.36 (8.09–8.63)80.16.90
Learning disabilityc-Unspecified mental retardation
-Specific developmental disorders of scholastic skills
-Pervasive developmental disorder
87.710.6 (10.3–10.9)125.510.8
Alcohol and drug dependenced60.47.27 (7.02–7.52)89.77.71
Dementiae0.900.11 (0.08–0.14)1.140.1
Personality disorderb2.200.26 (0.21–0.31)6.720.59
Eating disordersb1.000.12 (0.09–0.15)2.480.21
Mental disorders not otherwise specifiedb28.73.46 (3.28–3.64)77.86.7
Mental and behavioural disorders associated with puerperiumb4.100.49 (0.42–0.56)2.060.18
Total mental disorders830.41162.4
  • a Data from 5% sample.

  • b Z-test for difference between proportions of claimants in 1995 and 2014, P<0.0001.

  • c Z-test for difference between proportions of claimants in 1995 and 2014, P=0.12.

  • d Z-test for difference between proportions of claimants in 1995 and 2014, P=0.0006.

  • e Z-test for difference between proportions of claimants in 1995 and 2014, P=0.52.