74,734 items of data are available, covering 50,011 participants, encoded using Data-Coding 
.
Array indices run from 1 to 16.
| Category | Count | 
| Social anxiety or social phobia | 1958 | 
| Schizophrenia | 157 | 
| Any other type of psychosis or psychotic illness | 601 | 
| A personality disorder | 383 | 
| Any other phobia (eg disabling fear of heights or spiders) | 2146 | 
| Panic attacks | 8683 | 
| Obsessive compulsive disorder (OCD) | 981 | 
| Mania, hypomania, bipolar or manic-depression | 834 | 
| Depression | 33361 | 
| Bulimia nervosa | 502 | 
| Psychological over-eating or binge-eating | 703 | 
| Autism, Asperger's or autistic spectrum disorder | 223 | 
| Anxiety, nerves or generalized anxiety disorder | 21990 | 
| Anorexia nervosa | 888 | 
| Agoraphobia | 598 | 
| Attention deficit or attention deficit and hyperactivity disorder (ADD/ADHD) | 133 | 
| Prefer not to answer (group A) | 363 | 
| Prefer not to answer (group B) | 230 |