Table 1.
Patient characteristics at office visits (National Ambulatory Medical Care Surveys estimated visits, N=883,725,000 and Centricity Electronic Medical Record total visits, N=29,207,860).
| Characteristicsa | National Ambulatory Medical Care Surveys 2016 | Centricity Electronic Medical Record 2016 | |||
|
|
Percent distribution (95% CI) | Number of visits per 100 persons per year (95% CI) | Percent distribution (95% CI) | Number of visits per 100 persons per year (95% CI) | |
| All visits | 100 (N/A)b | 277.9 (259.3-296.5) | 100 (N/A) | 284.6 (284.4-284.7) | |
| Age (years) | |||||
|
|
<15 | 17.7 (14.6-20.8) | 257.4 (205.5-309.3) | 11.2 (11.2-11.2)c | 276.5 (276.2-276.8) |
|
|
15-24 | 7.4 (6.6-8.2) | 153.0 (132.6-173.4) | 7.5 (7.4-7.5) | 244.8 (244.5-245.1) |
|
|
25-44 | 19.3 (17.5-21.1) | 205.4 (184.4-226.4) | 20.0 (20.0-20.0) | 272.1 (271.9-272.4) |
|
|
45-64 | 28.5 (26.7-30.3) | 301.9 (275.0-328.8) | 30.9 (30.9-31.0) | 280.3 (280.1-280.4) |
|
|
65-74 | 15.0 (13.8-16.2) | 465.2 (419.7-510.7) | 16.3 (16.3-16.3) | 303.3 (303.1-303.6) |
|
|
≥75 | 12.1 (10.9-13.3) | 546.8 (491.3-602.3) | 14.1 (14.1-14.1) | 329.1 (328.8-329.4) |
| Female | |||||
|
|
Total | 58.0 (56.2-59.8) | 315.0 (291.5-338.5) | 59.8 (59.8-59.8) | 294.6 (294.5-294.8) |
|
|
<15 | 8.4 (6.6-10.2) | 247.7 (186.9-308.5) | 5.4 (5.3-5.4)d | 274.4 (274.0-274.8) |
|
|
15-24 | 4.6 (3.8-5.4) | 194.4 (160.9-227.9) | 4.9 (4.9-4.9) | 267.3 (266.8-267.7) |
|
|
25-44 | 13.4 (12.0-14.8) | 281.8 (249.1-314.5) | 13.8 (13.8-13.8) | 293.8 (293.5-294.0) |
|
|
45-64 | 16.4 (15.0-17.8) | 337.2 (303.1-371.3) | 18.2 (18.2-18.2) | 286.5 (286.3-286.8) |
|
|
65-74 | 8.0 (7.2-8.8) | 467.9 (415.6-520.2) | 9.2 (9.2-9.2) | 310.0 (309.6-310.4) |
|
|
≥75 | 7.1 (6.3-7.9) | 549.9 (484.2-615.6) | 8.3 (8.2-8.3) | 335.2 (334.8-335.6) |
| Male | |||||
|
|
Total | 42.0 (40.2-43.8) | 239.0 (220.6-257.4) | 40.2 (40.2-40.2) | 270.8 (270.6-270.9) |
|
|
<15 | 9.4 (7.8-11.0) | 266.7 (216.3-317.1) | 5.9 (5.8-5.9)d | 278.5 (278.1-278.9) |
|
|
15-24 | 2.7 (2.3-3.1) | 112.3 (93.9-130.7) | 2.5 (2.5-2.5) | 210.0 (209.5-210.5) |
|
|
25-44 | 5.9 (5.1-6.7) | 126.9 (108.7-145.1) | 6.2 (6.2-6.2) | 233.6 (233.3-233.9) |
|
|
45-64 | 12.1 (10.9-13.3) | 264.4 (234.4-294.4) | 12.7 (12.7-12.7) | 271.7 (271.5-272.0) |
|
|
65-74 | 6.9 (6.1-7.7) | 462.2 (410.1-514.3) | 7.1 (7.1-7.1) | 295.1 (294.7-295.5) |
|
|
≥75 | 5 (4.4-5.6) | 542.4 (479.5-605.3) | 5.9 (5.9-5.9) | 320.8 (320.4-321.3) |
| Ethnicity | |||||
|
|
White | 83.8 (82.0-85.6) | 302.3 (281.1-323.5) | 85.7 (85.7-85.7) | 289.7 (289.6-289.8) |
|
|
Black or African American | 10.6 (9.2-12.0) | 224.3 (192.2-256.4) | 10.7 (10.7-10.7) | 293.7 (293.3-294.0) |
|
|
Other race | 5.6 (4.4-6.8) | 158.1 (123.8-192.4) | 3.6 (3.6-3.6) | 272.7 (272.2-273.3) |
| Geographic region | |||||
|
|
Northeast | 20.8 (18.1-23.5) | 332.0 (285.4-378.6) | 21.7 (21.7-21.7) | 292.0 (291.8-292.3) |
|
|
Midwest | 21.2 (18.5-23.9) | 279.6 (242.8-316.4) | 16.3 (16.3-16.4)d | 286.4 (286.1-286.6) |
|
|
South | 36 (32.5-39.5) | 264.7 (229.8-299.6) | 43.1 (43.1-43.2)c | 281.7 (281.5-281.8) |
|
|
West | 22 (19.3-24.7) | 257.6 (221.7-293.5) | 18.8 (18.8-18.8)d | 283.4 (283.2-283.7) |
aPairwise comparisons for the equivalence of percent distributions between National Ambulatory Medical Care Surveys and Centricity Electronic Medical Record were conducted using the two one-sided test. The unmarked categories were all equivalent at a 2.5 percentage point margin.
bN/A: not applicable.
cNot equivalent at both 2.5 and 5.0 percentage point margins.
dNot equivalent at 2.5 percentage point margin.