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Table 2 Patient baseline and discharge clinical characteristics: inpatients split by adult and adolescent site *

From: A multi-centre cohort study of short term outcomes of hospital treatment for anorexia nervosa in the UK

  INPATIENT: ADULT INPATIENT: ADOLESCENT DAYPATIENT: ADULT
  Mean (SD) Admission N =150 Mean (SD) Discharge (N = 137) Test statistics ES Mean (SD) Admission N = 11 Mean (SD) Discharge (N = 7) Test statistics ES Mean (SD) Admission (N = 16) Mean (SD) Discharge (N = 15) Test statistics ES
AGE 26.5 (8.9)     15.2 (1.6)     24.7 (5.3)    
AGE ONSET 16.8 (5.6)     13.5 (1.4)     16.1 (4.1)    
LENGTH ILL (YEARS) 8.2 (8.3)     2.0 (1.7)     7.3 (7.0)    
LOWEST BMI 12.6 (1.7)     14.0 (2.0)     14.6 (1.6)    
# PREVIOUS ADMISSIONS a 1.0 (0-2.0)     0.4 (0.5)     0 (0-2.0)    
Treatment             
LoS (weeks)   26.4 (17.9)     29.0 (11.9)     17.8 (10.4)   
Weight gain             
BMI 14.0 (1.7) 17.3 (2.1) -21.4, p < .001 1.7 15.0 (1.6) 18.5 (1.3) -5.6, p = .001 3.1 17.3 (2.4) 18.5 (2.2) -2.1, p = .059 0.4
Weight (kgs) 38.3 (6.0) 47.1 (7.5) -20.6, p < .001 1.3 40.8 (6.1) 50.9 (5.3) -5.6, p = .003 2.1 45.1 (7.4) 48.4 (6.0) -2.0, p = .065 0.4
Weekly gain (kg)   0.4 (0.3)     0.5 (0.4)     0.1 (0.3)   
BMI 6 weeks*   15.1 (1.8)     15.1 (1.1)     17.5 (2.4)   
6wk rate of weekly weight *   0.6 (0.5)     0.2 (0.2)     -0.2 (0.4)   
Eating psychopathology (0-6) and behaviours
EDE-Q Total 4.2 (1.3) 3.3 (1.6) 6.5, p < .001 -0.6 4.1 (1.4) 3.5 (1.0) 0.3, p = .778 -0.2 4.4 (1.0) 3.7 (1.3) 2.7, p = .020 -0.7
EDE-Q Restraint 3.7 (1.8) 2.9 (1.9) 3.7, p < .001 -0.4 3.7 (2.2) 2.7 (1.2) 0.3, p = .802 -0.2 3.6 (2.0) 3.3 (1.4) 1.4, p = .186 -0.2
EDE-Q Eating Concern 3.7 (1.3) 2.8 (1.5) 6.3, p < .001 -0.6 3.6 (1.5) 3.0 (1.5) -0.1, p = .898 -0.1 4.0 (1.1) 3.3 (1.4) 2.3, p = .041 -0.7
EDE-Q Shape Concern 5.0 (1.2) 4.1 (1.8) 5.9, p < .001 -0.5 5.2 (0.8) 4.8 (0.8) 0.8, p = .499 -0.3 5.3 (0.9) 4.5 (1.5) 2.8, p = .016 -0.8
EDE-Q Weight Concern 4.5 (1.4) 3.3 (1.7) 7.2, p < .001 -0.7 4.1 (1.7) 3.7 (1.1) 0.4, p = .729 -0.3 4.7 (1.1) 3.7 (1.4) 2.9, p = .012 -0.8
OBE: Yes 55 (37%) 37 (31%) p = .440 -0.2 3 (38%) 3 (50%) p = 1.0 0.3 7 (44%) 10 (67%) p = .250 0.6
LOC: Yes 82 (59%) 62 (56%) p = .871 -0.1 3 (43%) 2 (40%) p = 1.0 -0.1 12 (75%) 8 (52%) p = .625 -0.6
SIV: Yes 42 (30%) 26 (23%) p = 1.0 -0.2 2 (29%) 1 (20%) p = 1.0 -0.3 6 (38%) 5 (39%) p = 1.0 0.0
LAX: Yes 29 (20%) 12 (11%) p = .152 -0.4 0 1 (20%) p = 1.0 - 3 (19%) 2 (15%) p = 1.0 -0.2
DIUR: Yes 8 (6%) 0 p = .063 - 0 0 - - 1 (6%) 2 (15%) p = 1.0 -0.5
EXC. EX: Yes 83 (58%) 41 (37%) p = .012 -0.5 5 (63%) 1 (20%) p = .500 -1.2 7 (44%) 7 (54%) p = 1.0 0.3
Mood and Quality of life
DASS total 77.8 (27.9) 64.8 (31.7) 4.9, p < .001 -0.4 75.3 (33.4) 36.0 (16.4) 1.5, p = .233 -0.9 79.1 (25.2) 67.5 (33.0) 1.1, p = .277 -0.4
DASS Depression 28.4 (11.3) 24.3 (12.7) 3.8, p < .001 -0.3 30.5 (11.8) 14.0 (8.9) 1.2, p = .309 -0.9 29.5 (10.8) 25.1 (14.7) 1.0, p = .316 -0.4
DASS Anxiety 20.3 (10.6) 15.7 (11.7) 4.5, p < .001 -0.4 15.5 (12.4) 8.4 (5.2) p = .285 -0.4 20.1 (7.6) 18.9 (10.1) -0.4, p = .726 -0.3
DASS Stress 29.1 (9.7) 24.7 (10.7) 4.3, p < .001 -0.4 29.3 (10.9) 13.6 (6.5) 1.9, p = .155 -1.3 29.5 (8.6) 23.5 (9.7) 1.7, p = .108 -0.7
WHO QoL (1-5) 2.4 (1.0) 3.2 (0.9) -6.7, p < .001 0.8 2.3 (0.9) 4.0 (1.0) -2.0, p = .141 1.6 2.9 (1.0) 2.8 (1.3) 0.4, p = .721 -0.1
WHO HEALTH (1-5) 2.3 (0.9) 2.9 (1.0) -5.0, p < .001 0.5 3.0 (1.2) 4.2 (0.8) -1.2, p = .308 0.6 2.4 (1.0) 2.3 (1.0) 0.4, p = .721 -0.1
WHO Psychological 26.2 (17.5) 35.5 (19.5) -5.6, p < .001 0.5 26.0 (18.2) 46.7 (20.5) -0.7, p = .519 0.5 22.1 (17.3) 26.3 (20.7) -0.9, p = .378 0.2
WHO Social 40.2 (22.1) 40.8 (21.7) 0.6, p = .581 0.1 38.0 (31.6) 41.7 (25.7) 0.7, p = .537 0.3 33.3 (18.0) 26.3 (17.3) 0.3, p = .764 -0.1
WHO Physical 51.0 (20.0) 62.2 (20.8) -5.3, p < .001 0.5 67.0 (20.4) 86.4 (8.5) -1.6, p = .207 0.3 46.2 (18.1) 45.3 (22.6) 0.7, p = .484 -0.1
WHO Environment 52.7 (16.9) 61.2 (17.0) -5.2, p < .001 0.4 56.6 (14.0) 72.5 (19.8) -1.6, p = .215 0.7 53.6 (9.9)-0.2 50.3 (16.1) 1.1, p = .296  
Motivation (1-10)
Importance to change 8.0 (2.3) 7.5 (2.5) 2.6, p = .010 -0.3 6.3 (4.3) 4.2 (3.3) 2.1, p = .127 -0.6 8.9 (1.1) 8.4 (2.5) 0.5, p = .603 -0.2
Confidence to change 5.5 (2.6) 5.4 (2.5) 1.2, p = .222 -0.1 5.0 (2.5) 6.2 (2.3) -0.9, p = .448 0.6 5.0 (2.0) 4.7 (2.6) 0.4, p = .711 -0.3
Perceived support from carers
LEE primary carer 20.0 (15.4) 18.3 (13.8) 1.3, p = .182 -0.1 20.6 (15.0) 14.7 (6.7) 0.2, p = .858 -0.1 19.0 (9.9) 22.5 (12.9) -1.2, p = .249 0.3
PCS Mother 2.4 (1.0) 2.4 (1.0) -0.5, p = .633 0.0 2.0 (0.8) 1.8 (0.1) 0.5, p = .670 -0.04 2.5 (0.9) 2.5 (0.9) -0.1, p = .902 -0.02
PCS Father 2.2 (1.0) 2.1 (0.9) 0.5, p = .618 -0.04 1.9 (0.5) 1.9 (0.3) -0.04, p = .973 0.03 2.4 (1.0) 2.5 (1.3) -0.4, p = .708 -0.1
  1. * Not every participant answered every question; a Median and IQR reported. b data for one site not presented in isolation as only 2 participants were inpatients; day patients are not included in individual site calculations; ES: Effect size; SD: Standard Deviation; N = sample number included; BMI: Body Mass Index; EDE-Q Eating Disorder Examination Questionnaire; OBE: Objective binge episodes with loss of control; LOC: Loss of control other than binge; SIV: Self-induced vomiting; LAX: Laxative use; EXER: Excessive exercise; DASS: Depression, Anxiety and Stress Scale; WHO: World Health Organization; QoL: Overall quality of life (1–5 high); HEALTH: Overall satisfaction with health (1–5 high); LEE: Levels of Expressed Emotion; PCS: Psychological Control Scale; Analyses for change over treatment period for adolescent and day patient samples were conducted using t-tests (data presented in table) and Wilcoxin Signed Ranks test for non-parametric data because of small sample sizes. There were no differences in the pattern of results. Bold values indicate a statistically significant result.