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
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
Eating disorder history, n (%) 572 151 (26.4%)
Physical features, total sample
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
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
Duration of illness (months), median ± IQR [range] 635 8 ± 5–12 [1,120]
Diagnosis, n (%) 685
 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
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]

Discrepancies in available N on the CDI and MASC reflect the later introduction of these measures. Values are n (%) unless otherwise indicated. Median and IQR are presented for skewed variables. BMI body mass index, CDI Children’s Depression Inventory, EDE Eating Disorder Examination, MASC Multidimensional Anxiety Scale for Children. 1Lower weight at intake than parent- or self-reported maximum ever weight.

Watson et al.

Watson et al. Journal of Eating Disorders 2013 1:30   doi:10.1186/2050-2974-1-30

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