Linking observational data from general practice, hospital admissions and diabetes clinic databases: can it be used to predict hospital admission?

Table 3 Demographic and clinical characteristics of the patients with T2DM

	Linked Admitted Patients with T2DM (N = 644)		General Practice Patients with T2DM & No Admission (N = 4392)
	Number	%	Number	%
Females	342	53.1	2,283	51.9
Age group (years)
< 20	0	0	25	0.6
20–44	32	4.9	492	11.2
45–64	177	27.5	1,720	39.2
65–74	162	25.2	1,030	23.5
≥ 75	273	42.4	1,125	25.6
Mean (SD) age in years#	69.4 (12.9)		63.4 (15.9)
Smoker	49	7.6	438	10.0
GP Diagnosis of Cardiovascular disease (CVD)*	322	50	2,438	55.5
GP Diagnosis of Kidney disease (CKD)#	53	8.2	158	3.6
GP Diagnosis of Chronic obstructive pulmonary disease (COPD)	95	14.8	555	12.6
Mean (SD) number of GP & DC visits^	6 (13.1)		6.3 (10.9)
Median (range) number of GP & DC visits^	0 (0, 90)		0 (0, 130)
Mean (SD) HbA1c^	7.25 (1.5)		7.35 (1.6)
Median (range) number of HbA1c recorded	4 (0, 28)		3 (0, 25)
Number with readmission at Fairfield Hospital	252	39	N/A	N/A

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