Table 5 Initial exploratory model (multivariable linear regression) with outcome as length of stay
Initial Exploratory Model | ||||||
|---|---|---|---|---|---|---|
Variables | Coefficient | SE | t | p | 95% CI (Lower) | 95% CI (Upper) |
Year (Ref: 2018) | - | - | - | 0.003* | - | - |
2014 | 14.29 | 5.86 | 2.44 | 0.015 | 2.78 | 25.80 |
2015 | -3.14 | 3.75 | -0.84 | 0.403 | -10.49 | 4.22 |
2016 | 7.23 | 3.80 | 1.90 | 0.058 | -0.24 | 14.69 |
2017 | -0.07 | 3.57 | -0.02 | 0.983 | -7.10 | 6.95 |
2019 | -1.76 | 3.30 | -0.53 | 0.595 | -8.23 | 4.72 |
2020 | -5.21 | 3.57 | -1.46 | 0.145 | -12.22 | 1.80 |
Diagnosis Counts | 0.96 | 0.30 | 3.21 | 0.001 | 0.37 | 1.55 |
Age (Centred) | -0.10 | 0.09 | -1.18 | 0.237 | -0.28 | 0.07 |
Eating Disorder Diagnoses (Ref: Anorexia Nervosa) | - | - | - | 0.023* | - | - |
Bulimia Nervosa | -9.05 | 3.34 | -2.71 | 0.007 | -15.60 | -2.49 |
Other | -3.46 | 2.93 | -1.18 | 0.239 | -9.22 | 2.30 |
Eating Disorder Diagnosis Type (Ref: Not Principle) | ||||||
Principle | -1.68 | 3.09 | -0.54 | 0.587 | -7.74 | 4.38 |
Medical Ward (Ref: No Medical Ward) | ||||||
Medical Ward | -1.29 | 4.18 | -0.31 | 0.758 | -9.49 | 6.92 |
Mental Health Ward (Ref: No Mental Health Ward) | ||||||
Mental Health Ward | 9.03 | 4.06 | 2.23 | 0.026 | 1.06 | 17.00 |
Specialist ED Ward (Ref: No Specialist ED Ward) | ||||||
Specialist ED Ward | 47.05 | 4.70 | 10.00 | < 0.001 | 37.81 | 56.29 |
Facility (Ref: Not RPA) | ||||||
RPA | -1.27 | 3.02 | -0.42 | 0.673 | -7.20 | 4.66 |
Mode of Separation (Ref: Discharged by hospital) | - | - | - | < 0.001* | - | - |
Discharged at own risk | -14.92 | 4.42 | -3.38 | 0.001 | -23.59 | -6.24 |
Transfer Outside Service | -3.56 | 3.70 | -0.96 | 0.336 | -10.82 | 3.70 |
Transfer Within Service | 22.43 | 5.18 | 4.33 | < 0.001 | 12.26 | 32.61 |
Referral Source (Ref: Emergency) | ||||||
Not Emergency | 0.35 | 2.81 | 0.13 | 0.899 | -5.16 | 5.86 |
Intensive Care Unit (Ref: Not ICU) | ||||||
ICU | -0.79 | 4.56 | -0.17 | 0.863 | -9.74 | 8.16 |
Gender (Ref: Male) | ||||||
Female | -5.62 | 4.16 | -1.35 | 0.178 | -13.79 | 2.56 |
Marital Status (Ref: Not Married/De facto) | ||||||
Married/De facto | -6.07 | 3.23 | -1.88 | 0.061 | -12.42 | 0.27 |
Index of Relative Socioeconomic Disadvantage | 1.51 | 0.86 | 1.76 | 0.079 | -0.17 | 3.19 |
Diagnosis Categories (Ref: No) | ||||||
Mood Disorder | 2.88 | 2.20 | 1.31 | 0.191 | -1.44 | 7.21 |
Psychotic Disorder | 7.02 | 4.74 | 1.48 | 0.140 | -2.30 | 16.33 |
Substance Disorder | -6.66 | 2.44 | -2.73 | 0.006 | -11.45 | -1.88 |
Personality Disorders | -6.02 | 2.77 | -2.17 | 0.030 | -11.45 | -0.58 |
Anxiety Disorders | 5.68 | 2.84 | 2.00 | 0.046 | 0.10 | 11.26 |
Self-Harm/Suicide | -2.20 | 3.22 | -0.68 | 0.496 | -8.53 | 4.14 |
Adjustment Disorder | -11.60 | 4.31 | -2.69 | 0.007 | -20.06 | -3.13 |
Childhood Psychiatric Disorders | 10.28 | 8.39 | 1.22 | 0.221 | -6.20 | 26.76 |
Behavioural Disorders | 0.19 | 3.89 | 0.05 | 0.960 | -7.44 | 7.83 |
Delirium/Dementias | 21.83 | 8.16 | 2.68 | 0.008 | 5.81 | 37.86 |
Phosphate/Oedema | 10.93 | 3.58 | 3.05 | 0.002 | 3.90 | 17.96 |
Acute Malnutrition Markers | -2.18 | 2.82 | -0.77 | 0.439 | -7.71 | 3.35 |
Effects of Chronic Malnutrition | 13.77 | 2.92 | 4.71 | < 0.001 | 8.03 | 19.50 |
Gastrointestinal Issues | 2.28 | 2.39 | 0.95 | 0.341 | -2.41 | 6.97 |
Hypokalemia/Alkalosis | -2.14 | 3.23 | -0.66 | 0.507 | -8.48 | 4.20 |
Dehydration | -1.67 | 3.10 | -0.54 | 0.591 | -7.76 | 4.43 |
Cardiac Sequelae | 4.28 | 2.80 | 1.53 | 0.128 | -1.23 | 9.79 |
Low Blood Pressure | 4.30 | 2.65 | 1.62 | 0.105 | -0.91 | 9.51 |
Hypoglycemia | 6.77 | 2.93 | 2.31 | 0.021 | 1.00 | 12.53 |