Table 1 Baseline characteristics of the physical examination group, the total study population and the completely physically capable group in 1994. Analysis of variance between the total population sample and the physical examination group are reported as the p-value

Age, years (SD)

57.0 (2.9)

57.3 (2.9)

59.1 (2.9)

< 0.01

Height, cm (SD)

161.3 (5.2)

161.2 (5.3)

160.0 (5.5)

0.659

Weight, kg (SD)

68.0 (10.6)

70.6 (12.2)

72.0 (18.5)

0.058

BMI (SD)

26.1 (3.8)

27.1 (4.5)

28.1 (4.9)

0.036

Mean of number of baseline chronic diseases per person (SD)

2.25 (1.404)

1.53 (1.358)

1.76 (1.340)

< 0.01

Smokers, %

13.5% (344)

14.8% (1159)

15.5% (310)

0.161

Average daily cigarettes

11.10

10.86

10.72

0.613

Average alcohol consumption (units of 12 g 100% alcohol per month)

61.3

63.7

66.1

0.476

Grip strength, kPa (SD)

N/A

N/A

71.2 (18.5)

N/A

Knee extension force, Kg (SD)

N/A

N/A

44.0 (11.9)

N/A

Able to squat to the floor, %

N/A

N/A

(1958/ 2610) = 75.0%

N/A

Able to stand on one foot for 10 s, %

N/A

N/A

(2099 / 2809) = 74.7%

N/A