Table 4 Association of Self-Reported Ability to Walk from One Room to Another on Same Level and 8-ft Walk Test

OR

95% CI

P

OR

95% CI

P

8-ft walk*, m/sec

   Q1 (≥ 0.91)

1.00

1.00

   Q2 (0.71-0.90)

1.29

0.62-2.68

0.49

1.25

0.60-2.62

0.55

   Q3 (0.54-0.70)

3.23

1.62-6.43

0.0009

2.54

1.16-5.59

0.02

   Q4 (≤ 0.53)

21.91

11.64-40.24

< 0.0001

14.20

6.67-30.24

< 0.0001

Age, y

60-64

1.00

65-69

1.67

0.85-3.39

0.14

70-74

1.87

1.03-3.40

0.04

75-79

1.50

0.84-2.68

0.17

≥ 80

2.10

1.13-3.92

0.02

Men

1.00

Women

0.91

0.52-1.58

0.73

Race-ethnicity

   Non-Hispanic White

1.00

   Non-Hispanic Black

1.04

0.73-1.49

0.81

   Mexican-American

1.16

0.70-1.92

0.56

   Other

0.81

0.45-1.46

0.49

Education, y

   ≥ 13

1.00

   9-12

0.75

0.48-1.17

0.20

   0-8

0.94

0.61-1.43

0.77

Arthritis

   No

1.00

   Yes

2.86

2.17-3.77

< 0.0001

Stroke

   No

1.00

   Yes

2.26

1.56-3.26

< 0.0001

Diabetes mellitus

   No

1.00

   Yes

0.98

0.70-1.37

0.89

Chronic bronchitis

   No

1.00

   Yes

1.64

1.03-2.62

0.04

Emphysema

   No

1.00

   Yes

1.10

0.54-2.24

0.79

Asthma

   No

1.00

   Yes

0.88

0.54-1.42

0.60

Myocardial infarction

   No

1.00

   Yes

0.67

0.43-1.04

0.08

Congestive heart failure

   No

1.00

   Yes

2.57

1.52-4.33

0.0004

Cancer (excluding skin cancer)

   No

1.00

   Yes

1.61

1.05-2.48

0.03

Current smoking

   No

1.00

   Yes

0.97

0.68-1.40

0.89

Hemoglobin, g/dL

0.98

0.87-1.11

0.79

Serum albumin, g/dL

0.33

0.19-0.56

0.0001

Painful knees, no.

   0

1.00

   1

1.31

0.80-2.14

0.28

   2

1.26

0.80-1.97

0.32

BMI^†, kg/m²

   < 18.5

2.24

0.97-5.16

0.06

   18.5-24.9

1.00

   25-29.9

1.12

0.76-1.67

0.56

   ≥ 30

1.14

0.73-1.78

0.57

SMI^‡, %

1.01

0.97-1.06

0.57