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Table 1 Characteristics of Medicare beneficiaries by frailty status at baseline, NHATS, 2011a

From: Association between baseline frailty and driving status over time: a secondary analysis of The National Health and Aging Trends Study

Variables

Total

Frail

Not Frail

P-value

Total % (N)

(6288)

15.3 (1193)

84.7 (5095)

 

Driving status

   

<0.0001

 Current driver

83.4

54.0

88.7

 

 Current non-driver

16.6

46.0

11.3

 

Age group

   

<0.0001

 65–69

29.4

18.2

31.5

 

 70–74

25.8

19.4

27.0

 

 75–79

19.2

17.6

19.5

 

 80–84

14.3

19.4

13.3

 

 85–89

7.9

17.2

6.2

 

  ≥ 90

3.4

8.2

2.5

 

Gender

   

0.0002

 Female

54.0

60.0

52.9

 

 Male

46.0

40.0

47.1

 

Race/Ethnicity

   

<0.0001

 White non-hispanic

84.3

78.1

85.4

 

 Black non-hispanic

7.3

11.0

6.7

 

 Hispanic

5.7

8.4

5.2

 

 Other

2.7

2.4

2.7

 

Living arrangement

   

0.0078

 Alone

28.7

34.2

27.7

 

 Not Alone

71.3

65.8

72.3

 

Dementia

   

<0.0001

 Probable

6.5

19.2

4.2

 

 Possible or No

93.5

80.8

95.8

 

Comorbidity scale

   

<0.0001

 0

19.2

6.5

21.6

 

 1

30.8

17.6

33.1

 

 2

27.0

29.0

26.6

 

 3

14.3

24.1

12.6

 

 4 or more

8.7

22.9

6.1

 
  1. aAnalyses of weighted data from the National Health and Aging Trends Study. Sample totals provided along with weighted percentages