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Table 1 Respondent characteristics of the study sample and the validation sub sample.

From: Distinguishing four components underlying physical activity: a new approach to using physical activity questionnaire data in old age

Characteristics

Sub sample (N = 418)

Total sample (N = 1699)

Age (years, SD)

78 (6.1)

73 (8.0)

Gender (% female)

54

54

Education (%)

  

   Primary

37

38

   Secondary

53

50

   College/University

10

13

BMI (kg/m2, SD)

27.2 (4.1)

27.5 (4.2)

Quadriceps strength (N, SD)

146 (40)

-

Handgrip strength (kgf, SD)

27.9 (10.2)

25.6 (10.6)

Physical activity (min/day, SD)

155 (117)

157 (102)

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BMC Geriatrics

ISSN: 1471-2318

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