Table 3 Binary logistic regression predicting any readmission (n = 7286)

 Patient also had assault diagnosis at time of index episode (0 = no, 1 = yes)

.197

.206

.915

1.217

.814

1.822

 Patient also had other substance use diagnosis at time of index episode (0 = no, 1 = yes)

.302

.145

4.315

1.352

1.017

1.798

*

 Patient also had injury diagnosis at time of index episode (0 = no, 1 = yes)

-.439

.157

7.857

.645

.475

.876

**

 Patient also had other mental health diagnosis at time of index episode (0 = no, 1 = yes)

.441

.155

8.070

1.555

1.147

2.108

**

 Patient also had self-harm diagnosis at time of index episode (0 = no, 1 = yes)

.316

.121

6.817

1.371

1.082

1.738

**

 Patient also had “undetermined intent” diagnosis at time of index episode (0 = no, 1 = yes)

-.030

.435

.005

.971

.413

2.279

 Patient’s primary diagnosis at index admission was alcohol related (0 = no, 1 = yes)

-.489

.124

15.479

.613

.481

.782

***

 Average level of wealth of the patient’s area of residence at time of index admission

-.081

.016

25.513

.923

.894

.952

***

 Age at start of index admission (within the 12-18 year age band)

-.022

.027

.613

.979

.927

1.033

 Patient was treated during index admission in an urban PCT (0 = no, 1 = yes)

-.079

.089

.798

.924

.776

1.099

 Patient was male (0 = no, 1 = yes)

-.250

.088

8.160

.779

.656

.925

**

 Address missing at time of index admission (0 = not missing, 1 = missing)

.376

.317

1.409

1.456

.783

2.710

 Length of stay in hospital during the index admission

.005

.022

.055

1.005

.962

1.050

 Patient had index admission on a “traditional” drinking day (0 = no, 1 = yes)

-.154

.087

3.109

.857

.722

1.017

 Outside ambient air temperature on date of index admission

.003

.008

.120

1.003

.988

1.018

Constant

-1.190

.479

6.178

.304

*