Table 1

Characteristics of the study population by primary care physician specialty, MCBS 2006-2007 (n = 3,276)

Characteristic, %

General Internist, n = 1,624

Family Physicians, n = 1,652

Wald test p- values


Age, years


50-54

5.1

5.1


55-64

13.2

15.6

0.24


65-69

40.0

40.6


70-75

41.7

38.7


Race/Ethnicity


Whites

77.8

83.0


Blacks

10.5

8.4

0.02


Hispanics

7.8

5.7


Others

3.9

3.0


Female

55.5

54.3

0.54


Married or living together

63.3

63.4

0.94


Residing in Metropolitan Service Area

80.6

66.2

<0.01


Had less than high school diploma

19.1

26.6

<0.01


Annual household income <$25,000

44.4

49.1

0.03


Language of interview, English

95.1

98.2

<0.01


Working at a job

17.8

17.0

0.58


Delayed medical care due to cost

10.8

12.7

0.12


Had supplemental health insurance

74.8

69.7

0.01


Had a history of non-skin cancer

15.4

13.3

0.10


General health fair-to-poor

27.1

28.0

0.54


There were a total of 527 beneficiaries in the sample who were in Medicare because of disabilities. Compared to persons in Medicare because of age-eligibility, a higher proportion of those with disability were non-Hispanic blacks (8% vs. 18%) or were Hispanic (0.8% vs.2%) (p-value <0.01). They were less likely to be married (p-value <0.01), have supplemental insurance (p-value <0.01) or have received a high school diploma (p-value <0.01). Beneficiaries with disability were more likely to report fair or poor health (p-value <0.01), or have an annual income of < $25,000 (p-value <0.01). The proportion receiving care from FPs (53%) or internists (47%) was similar irrespective of disability status.

Higgins et al. BMC Gastroenterology 2012 12:23   doi:10.1186/1471-230X-12-23

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