Characteristic

Age (mean ± SD)

22.46 ± 2.44

Marital status

No.

%

Single

480

96.0

Married

20

4.0

Occupation

Recent graduate

253

50.6

Manual work

225

45.0

Jobless

22

4.4

Social class

High

30

6.0

Middle

332

66.4

Low

138

27.6

Educational level

>9 years

349

69.8

≤9 years

151

30.2