Table 2 Sociodemographic, clinical, and medical characteristics of the eating disorder subset of the cohort ( n = 685)
|  | N | Eating disorder clinic cohort (N = 685) |
|---|---|---|
Sociodemographic characteristics, total sample | Â | Â |
Sex (female), n (%) | 685 | 641 (93.6%) |
Age, M ± SD [range] | 685 | 14.7 ± 1.6 [8.7,17.9] |
 <12 yrs |  | 45 (6.6%) |
 12-14 yrs |  | 146 (21.3%) |
 14-16 yrs |  | 374 (54.6%) |
 >16 yrs |  | 120 (17.5%) |
Rural residence, n (%) | 663 | 115 (17.3%) |
Family history, total sample | Â | Â |
Eating disorder history, n (%) | 572 | 151 (26.4%) |
Physical features, total sample | Â | Â |
BMI z score, M ± SD [range] | 636 | −1.41 ± 1.48 [−8.17,2.13] |
Weight loss1, n (%) | 538 | 514 (95.5%) |
< 85% of expected height/weight, n (%) | 577 | 355 (61.5%) |
Amenorrhoea, n (%) | 659 | 280 (42.5%) |
 Primary |  | 30 (4.6%) |
 Secondary |  | 250 (37.9%) |
Comorbid psychopathology, total sample | Â | Â |
CDI T-score ≥ 65, n (%) | 262 | 127 (48.5%) |
MASC T-score ≥ 65, n (%) | 264 | 89 (33.7%) |
Current suicidal ideation, n (%) | 271 | 114 (42.1%) |
Current self-harm, n (%) | 493 | 134 (27.2%) |
Eating disorder features, total sample | Â | Â |
Duration of illness (months), median ± IQR [range] | 635 | 8 ± 5–12 [1,120] |
Diagnosis, n (%) | 685 | Â |
 Anorexia nervosa |  | 172 (25.2%) |
  Restricting |  | 141 (20.6%) |
  Binge/purge |  | 31 (4.5%) |
 Bulimia nervosa |  | 48 (7.0%) |
  Purging |  | 45 (6.6%) |
  Non-purging |  | 3 (0.4%) |
 Eating disorders not otherwise specified |  | 465 (67.9%) |
Child version: EDE global, M ± SD [range] | 675 | 3.07 ± 1.57 [0.0,5.95] |
Parent version: EDE global, M ± SD [range] | 598 | 2.94 ± 1.29 [0.0,6.93] |
Objective binge eating, n (%) | 685 | 129 (18.8%) |
Purging, n (%) | 685 | 237 (34.6%) |
Self-induced vomiting, n (%) | 685 | 195 (28.5%) |
Laxative misuse, n (%) | 685 | 49 (7.2%) |
Diuretic misuse, n (%) | 685 | 5 (0.7%) |
Intense exercise to control shape/weight, n (%) | 685 | 307 (44.8%) |
Fear of weight gain (≥ 4 on EDE item), n (%) | 673 | 479 (71.2%) |
Eating disorder features, those with behaviour present | Â | Â |
Objective binge eating, median ± IQR [range] | 129 | 10 ± 3–19 [1,168] |
Purging | 237 | 20.00 ± 5–33.5 [1,308] |
Self-induced vomiting, M ± SD [range] | 195 | 27.17 ± 32.07 [1,224] |
Laxative misuse, M ± SD [range] | 49 | 22.29 ± 47.13 [1,280] |
Diuretic misuse, M ± SD [range] | 5 | 50.40 ± 23.43 [28,84] |