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Table 4 Characteristics of Patients for modelling length of stay (n = 613)

From: Using health administrative data to model associations and predict hospital admissions and length of stay for people with eating disorders

Characteristic

n(%)

Diagnostic Categories

n(%)

Length of Stay (median (IQR))

17 (5–50)

Mood Disorder

 

Year

 

Yes

246 (40.1%)

2014

24 (3.9%)

No

367 (59.9%)

2015

84 (13.7%)

Psychotic Disorder

 

2016

79 (12.9%)

Yes

33 (5.4%)

2017

89 (14.5%)

No

580 (94.6%)

2018

107 (17.5%)

Substance Disorder

 

2019

131 (21.4%)

Yes

168 (27.4%)

2020

99 (16.2%)

No

445 (72.6%)

Diagnosis Counts (Median (IQR))

7 (5–11)

Personality Disorders

 

Age (Mean (SD))

30.7 (13.4)

Yes

146 (23.8%)

Eating Disorder Diagnoses

 

No

467 (76.2%)

Anorexia Nervosa

413 (67.4%)

Anxiety Disorders

 

Bulimia Nervosa

76 (12.4%)

Yes

154 (25.1%)

Other

124 (20.2%)

No

459 (74.9%)

Eating Disorder Diagnosis Type

 

Self-Harm/Suicide

 

Principle

318 (51.9%)

Yes

117 (19.1%)

Not Principle

295 (48.1%)

No

496 (80.9%)

Medical Ward as part of admission

 

Adjustment Disorder

 

Yes

251 (41.0%)

Yes

55 (9.0%)

No

362 (59.0%)

No

558 (91.0%)

Mental Health Ward as part of admission

 

Childhood Psychiatric Disorders

 

Yes

208 (33.9%)

Yes

9 (1.5%)

No

405 (66.1%)

No

604 (98.5%)

Specialist ED Ward

 

Behavioural Disorders

 

Yes

238 (38.8%)

Yes

50 (8.2%)

No

375 (61.2%)

No

563 (91.8%)

Facility

 

Delirium/Dementias

 

RPA

498 (81.2%)

Yes

11 (1.8%)

Not RPA

115 (18.8%)

No

602 (98.2%)

Mode of Separation

 

Phosphate/Oedema

 

Discharged by hospital

480 (78.3%)

Yes

63 (10.3%)

Discharged at own risk

35 (5.7%)

No

550 (89.7%)

Transfer Outside Service

53 (8.7%)

Acute Malnutrition Markers

 

Transfer Within Service

45 (7.3%)

Yes

406 (66.2%)

Treatment in Emergency

 

No

207 (33.8%)

Yes

257 (41.9%)

Effects of Chronic Malnutrition

 

No

356 (58.1%)

Yes

117 (19.1%)

Referral Source

 

No

496 (80.9%)

Emergency

252 (41.1%)

Gastrointestinal Issues

 

Not Emergency

361 (58.9%)

Yes

188 (30.7%)

Intensive Care Unit as part of admission

 

No

425 (69.3%)

Yes

38 (6.2%)

Hypokalemia/Alkalosis

 

No

575 (93.8%)

Yes

88 (14.4%)

Gender

 

No

525 (85.6%)

Male

41 (6.7%)

Dehydration

 

Female

572 (93.3%)

Yes

95 (15.5%)

Marital Status

 

No

518 (84.5%)

Married/De facto

73 (11.9%)

Other Electrolyte Disturbances

 

Not Married/De facto

540 (88.1%)

Yes

50 (8.2%)

Index of Relative Socioeconomic Disadvantage

 

No

563 (91.8%)

Quintile 1 – Least disadvantaged

53 (8.7%)

Cardiac Sequelae

 

Quintile 2

39 (6.4%)

Yes

119 (19.4%)

Quintile 3

143 (23.3%)

No

494 (80.6%)

Quintile 4

176 (28.7%)

Low Blood Pressure

 

Quintile 5 – Most disadvantaged

202 (33.0%)

Yes

169 (27.6%)

  

No

444 (72.4%)

  

Hypoglycemia

 
  

Yes

104 (17.0%)

  

No

509 (83.0%)