Table 2.
Characteristic | n (Millions) | % | P Value* |
---|---|---|---|
Total survey | 48.5 | 35.3 | |
NAMCS | 45.2 | 36.4 | <.001 |
NHAMCS | 3.3 | 25.0 | |
Age, y | |||
18 to 44 | 6.1 | 39.2 | .0252 |
45 to 64 | 19.4 | 36.6 | |
65 to 74 | 13.4 | 38.4 | |
>74 | 9.6 | 28.3 | |
Gender | |||
Female | 27.9 | 34.8 | .875 |
Male | 20.6 | 36.0 | |
Race | |||
White | 29.9 | 31.4 | .0001 |
Black | 9 | 38.4 | |
Asian | 3.8 | 49.8 | |
Hispanic | 5.7 | 52.4 | |
Payment source | |||
Private insurance | 21.8 | 37.9 | .2502 |
Medicare | 18.2 | 32.8 | |
Medicaid | 3.9 | 43.0 | |
Self-pay | 1.6 | 33.8 | |
Other | 3.1 | 28.6 | |
Geographic region | |||
Northeast | 11.8 | 37.7 | .7753 |
Midwest | 10.5 | 31.1 | |
South | 16.2 | 36.6 | |
West | 10 | 35.6 | |
Type of visit | |||
Acute | 7.9 | 28.6 | <.0001 |
Chronic routine | 29 | 39.5 | |
Chronic flare | 3.7 | 35.4 | |
Nonillness care | 8 | 30.7 | |
Physician specialty† | |||
Internal medicine | 15.7 | 35.2 | .0686 |
Family medicine | 22.6 | 41.0 | |
Cardiology | 2 | 23.4 | |
Other | 5 | 30.9 | |
Cardiovascular comorbidities | |||
Coronary artery disease | 4.1 | 39.2 | .2 |
Diabetes mellitus | 11.3 | 46.9 | <.001 |
Obesity | 4.1 | 69.5 | <.001 |
Dyslipidemia | 4.7 | 45.1 | .04 |
Other (CVA, CHF) | 1.2 | 31.4 | .923 |
Number of comorbidities | |||
None | 26.8 | 29.9 | <.0001 |
One | 18.1 | 44.2 | |
Two | 3.7 | 53.3 | |
Number of antihypertensives | |||
None | 14.4 | 33.7 | .8423 |
1 to 2 | 28.5 | 36.3 | |
3 or more | 5.6 | 34.9 |
Adjusted for age, gender, race/ethnicity, payment source, and type of visit.
Data from NAMCS only.
NAMCS, National Ambulatory Medical Care Survey; NAHMCS, National Hospital Ambulatory Medical Care Survey; CVA, stroke; CHF, congestive heart failure.