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Table 1 Pilot study data – readmission rates by DM diagnosis for patients with index admission between 10/1/2013 and 12/31/2013

From: The relationship between diabetes mellitus and 30-day readmission rates

  Principal Dx of DM (n) Secondary Dx of DM (n) p-value Any DM No DM Dx (n) p-value
Index discharge N = 7763 121 1819   1940 5823  
Discharged alive N = 7554 121 1757   1878 5676  
30 day Readmissionsa n (%) n (%)    n (%)  
Inpatient readmission 31(25.6) 313(17.8) 0.02‡ 344(18) 775(13.7) <0.001‡†#
Other encounters 18(14.9) 141(8) 0.005‡ 159(8.4) 504(8.9) 0.02b 0.23c
Total 49(40.5) 454(25.8)   503(26.8) 1279(22.5)  
Endocrine HIIP service 34(28) 275(15)   309(16) 97(1.7) <0.001
  1. aAmong patients discharged alive; bComparison made to primary diagnosis of DM group; cComparison made to secondary diagnosis of DM; #any DM vs. no DM