General aspects

Intellectual

Mechanical

P

Number of elderlies

13

12

Age (years, A ± SD)

69 ± 3

63.8 ± 2

0.04

Male gender

1

2

Female gender

12

10

Wage Income

4.5 MS

3.8 MS*

Years of study

15.4 ± 2

10.4 2

0.02

Current activity

N˚

%

N˚

%

Intellectual

1

7

0

0

0.07

Mechanical

12

93

12

100