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Table 2 Proportion of patients readmitted (%) by patient subgroup and different periods of follow-up (log rank test p values from relevant Kaplan-Meier readmission-free curves)

From: Factors influencing emergency medical readmission risk in a UK district general hospital: A prospective study

   28 days p* 3 months p* 6 months p* 12 months p*
Sex Men 7.7 0.017 13.5 0.009 18.3 0.003 24.1 0.01
  Women 6.8   12.4   16.8   22.7  
Age group <60 5.4 <0.001 8.8 <0.001 11.8 <0.001 15.8 <0.001
  60–74 8.2   15.1   19.7   26.4  
  >75 8.5   15.8   22.3   29.6  
Admission method A&E 6.9 0.07 12.7 0.2 17.4 0.79 23.3 0.93
  GP referral 7.7   13.4   17.7   23.4  
  Other 7.8   11.6   17.6   23.9  
Length of Stay <2 5.9 <0.001 8.6 <0.001 11.2 <0.001 14.7 <0.001
  2–5 6.5   10.9   15.5   21.4  
  6–11 8.0   15.6   21.2   28.0  
  >11 8.8   17.4   22.3   31.0  
Number of coded co-morbidities None 6.1 <0.001 9.6 <0.001 13.2 <0.001 17.3 <0.001
  1 6.0   9.8   13.3   17.5  
  2 7.0   12.3   16.4   22.2  
  3 8.3   15.8   21.6   28.9  
  4 7.3   14.3   18.7   24.4  
Diagnosis ACS 7.2 <0.001 13.0 <0.001 17.2 <0.001 22.3 <0.001
  COPD/Asthma 8.7   15.7   22.1   30.1  
  Heart Failure 11.1   22.7   31.3   37.5  
  Stroke 4.5   9.6   14.6   23.0  
  All other 7.0   12.3   16.6   22.3  
Deprivation Affluent 7.1 0.44 11.8 0.002 15.8 <0.001 21.0 <0.001
  2 7.2   12.5   17.0   22.2  
  3 6.9   13.0   18.1   24.2  
  Deprived 7.7   14.3   19.2   25.9  
Total   7.2   12.9   17.5   23.3  
  1. *Log Rank test
  2. A&E: Accident and Emergency, GP: General Practitioner, ACS: Acute Coronary Syndrome, COPD: Chronic Obstructive Pulmonary Disease