Table 1.
Descriptive characteristics of the study population
| AN (N = 12 424) | OED (N = 20 716) | |
|---|---|---|
| Sex | ||
| Female (%) | 11 704 (94.2) | 19 420 (93.7) |
| Male (%) | 720 (5.8) | 1296 (6.3) |
| Birth year (mean ± s.d.) | 1988.9 ± 5.7 | 1988.4 ± 5.8 |
| Family history of schizophrenia (%) | ||
| 1st degree relatives | 94 (0.76) | 199 (0.96) |
| Any relative | 599 (4.82) | 1118 (5.40) |
| Age at first AN/OED diagnosis (mean ± s.d.) | 17.97 ± 4.22 | 19.75 ± 4.86 |
| BMI (mean ± s.d.)a | 17.41 ± 2.71 | 20.33 ± 4.67 |
| GAF score (mean ± s.d.)b | 47.60 ± 13.45 | 49.17 ± 12.15 |
| EDE-Q scores (mean ± s.d.)c | ||
| Restraint | 3.38 ± 1.85 | 3.42 ± 1.72 |
| Eating concern | 2.78 ± 1.50 | 3.04 ± 1.45 |
| Weight concern | 3.47 ± 1.74 | 3.84 ± 1.59 |
| Shape concern | 4.14 ± 1.74 | 4.49 ± 1.58 |
| Global score | 3.42 ± 1.56 | 3.68 ± 1.43 |
| Schizophrenia | 70 (0.56) | 133 (0.64) |
| Psychiatric comorbidities (%) | ||
| Anxiety disorders | 3445 (27.7) | 7515 (36.3) |
| OCD | 923 (7.4) | 1541 (7.4) |
| MDD | 4426 (35.6) | 8 895 (42.9) |
| ASD | 430 (3.5) | 838 (4.1) |
| ADHD | 685 (5.5) | 1826 (8.8) |
| SUD | 1435 (11.6) | 3144 (15.2) |
| Total follow-up years | 230 322.6 | 395 585.1 |
| Total diagnoses | 472 181 | 842 343 |
| Total unique diagnoses | 201 317 | 378 949 |
| Total suicide attempts | 7580 | 14 777 |
AN, anorexia nervosa; OED, other eating disorders; s.d., standard deviation; BMI, body mass index; GAF scores, Global Assessment of Functioning scores; EDE-Q scores, Eating Disorders Examination Questionnaire scores; OCD, obsessive-compulsive disorder; MDD, major depressive disorder; ASD, autism spectrum disorder; ADHD, attention-deficit/hyperactivity disorder; SUD, substance abuse disorders.
There were 7112 individuals with AN with BMI information, and 9667 individuals with OED with BMI information.
There were 6656 individuals with AN with GAF score information, and 8905 individuals with OED with GAF score information.
There were 3556 individuals with AN with EDEQ information, and 5515 individuals with OED with EDE-Q information.