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. 2011 May 26;13(2):e41. doi: 10.2196/jmir.1702

Table 1.

Demographic characteristics of patients seen at seven Duke Medicine clinics during 2008

All Patients
(n = 58,942)
HVP Enrolleesa
(n = 12,077)
Nonusersa
(n = 46,865)
Pb
n (%) n (%) n (%)
Female 34,094 (57.8) 7702 (63.8) 26,392 (56.3) < .001
Age group
≥ 65 8569 (14.5) 1750 (14.5) 6819 (14.6) .88
55-64 7441 (12.6) 2536 (21.0) 4905 (10.5) < .001
40-54 11,619 (19.7) 3818 (31.6) 7801 (16.6) < .001
30-39 6601 (11.2) 2211 (18.3) 4390 (9.4) < .001
18-29 5804 (9.8) 1199 (9.9) 4605 (9.8) .75
≤ 17 18,908 (32.1) 563 (4.7) 18,345 (39.1) < .001
Ethnicity
Hispanic/Latino 2263 (3.8) 147 (1.2) 2116 (4.5) < .001
Other 56,679 (96.2) 11,930 (98.8) 44,749 (95.5) < .001
Race
White 29,621 (50.2) 8495 (70.3) 21,126 (45.1) < .001
Black 22,182 (37.6) 2415 (20.0) 19,767 (42.2) < .001
Asian 2135 (3.6) 557 (4.6) 1578 (3.4) < .001
Other 5004 (8.5) 610 (5.1) 4394 (9.4) < .001
Payor classc
Medicaid 9888 (16.8) 199 (1.6) 9689 (20.7) < .001
Medicare 8301 (14.1) 1539 (12.7) 6762 (14.4) < .001
Private 39,243 (66.6) 10,080 (83.5) 29,163 (62.2) < .001
Uninsured/self-pay 848 (1.4) 63 (0.5) 785 (1.7) < .001
Unknown 662 (1.1) 196 (1.6) 466 (1.0) < .001

a Enrollee status as of 12/31/2008

b P value by 2-tailed χ2 test

cPayor as of last 2008 appointment