The relationship between diabetes mellitus and 30-day readmission rates

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

	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 Readmissions^a	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)	0.02^b 0.23^c
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

^aAmong patients discharged alive; ^bComparison made to primary diagnosis of DM group; ^cComparison made to secondary diagnosis of DM; #any DM vs. no DM

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