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

From: Which young people in England are most at risk of an alcohol-related revolving-door readmission career?

  B SE B Wald's X 2 EXP(B) (odds ratios) Lower 95% C.I. for EXP(B) Upper 95% C.I. for EXP(B) Sig
Diagnosis variables
 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 ***
Demographic variables
 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  
Admission characteristic variables
 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    *
 Tests
 Omnibus Tests of Model Coefficients
   Step    X 2 = 164.975,df = 15, p < .001
   Block    X 2 = 164.975,df = 15, p < .001
   Model   X 2 = 164.975,df = 15, p < .001
 Hosmer and Lemeshow Test    X 2 = 17.311,df = 8, p = .027
   -2 Log likelihood 4331.445
   Cox & Snell R Square .023
   Nagelkerke R Square .049
  1. * p < .05, ** p < .01, *** p < =.001