Table 1.

Characteristics of the participants.

Variables	N	%
Sex
Male	545	93
Female	41	7
Educational level (Years)
>9	94	16
6–9	440	75
<6	52	9
Status
Worker	557	95
Foreman	29	5
Years of work experience
>20	404	69
10–20	100	17
5–10	58	10
<5	24	4
Team tenure
>6 m	194	33
3–6 m	187	32
<3 m	205	35