BMC Public Health

Table 3 Crude and adjusted prevalence of diabetes and hypertension in a mid-size health system (Database A) to those systems patients in the Health Information Exchange (Database B), Utah — 2015 (N = 72,356)

From: Use of electronic health records from a statewide health information exchange to support public health surveillance of diabetes and hypertension

	Age group	Database A			Database B
	Age group	n	Crude %	Adj^a %	n	Crude %	Adj^a %	P-value^b
Diabetes
Male	18–34	6370	2.7	2.6	6360	1.5	1.5	0.09
	35–49	6207	7.5	7.3	6193	4.8	4.6
	50–64	8228	14.6	14.3	8188	10.5	10.3
	65–85	10,898	22.4	22.1	10,810	16.6	16.2
Female	18–34	11,028	3.8	3.7	10,268	2.1	2.1	0.40
	35–49	8106	5.8	5.7	8083	3.9	3.8
	50–64	9700	11.1	10.8	9646	8.3	8.0
	65–85	12,442	17.3	17.2	12,307	13.2	13.1
All	18–34	16,657	3.3	3.2	16,661	1.9	1.8	0.21
	35–49	14,334	6.6	6.5	14,334	4.2	4.2
	50–64	17,955	12.7	12.7	17,954	9.3	9.3
	65–85	23,410	19.7	19.9	23,406	14.6	14.8
	18–85	72,356	11.6	8.4	72,356	8.3	5.8
Hypertension
Male	18–34	6370	4.9	4.9	6360	2.7	2.7	0.03
	35–49	6207	14.1	13.8	6193	11.9	11.6
	50–64	8228	28.1	27.7	8188	22.2	21.7
	65–85	10,898	42.3	41.6	10,810	31.8	31.2
Female	18–34	11,028	2.5	2.5	10,268	1.4	1.4	0.60
	35–49	8106	8.0	7.8	8083	7.0	6.8
	50–64	9700	18.6	18.1	9646	17.1	16.6
	65–85	12,442	37.9	36.9	12,307	32.0	31.1
All	18–34	16,657	3.5	3.6	16,661	1.9	2.0	0.24
	35–49	14,334	10.7	10.9	14,334	9.1	9.2
	50–64	17,955	23.0	23.2	17,954	19.3	19.3
	65–85	23,410	40.0	39.4	23,406	31.5	31.2
	18–85	72,356	21.5	14.5	72,356	17.2	11.6

^aAdjusted by iterative proportional fitting (raking) using American Community Survey 2015 marginal proportions for sex and 5 year age groups
^bT-test to compare the slope of Database A prevalence across age groups to the slope of Database B prevalence across age groups

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