Table 2 Baseline characteristics of study participantsa, data from self-reported questionnaire, n = 271
|  | WSQ-IGb % (n = 132) | Controls % (n = 139) |
|---|---|---|
Sex | ||
 Women | 67 (88) | 70 (97) |
 Men | 33 (44) | 30 (42) |
Age categories | ||
 19–30 years | 16 (21) | 19 (26) |
 31–50 years | 44 (58) | 54 (76) |
 51–64 years | 40 (53) | 27 (37) |
Civil status | ||
 Single | 25 (33) | 18 (25) |
 Married/cohabitant | 69 (91) | 76 (106) |
 In a relationship, live-apart | 5 (7) | 5 (7) |
Educational level | ||
 Compulsory schooling | 10 (13) | 11 (15) |
 Secondary school | 46 (61) | 42 (59) |
 University or higher | 44 (57) | 47 (65) |
Occupational class | ||
 Skilled/unskilled manual | 37 (49) | 42 (58) |
 Medium/low non-manual | 46 (60) | 41 (56) |
 High-level non-manual | 17 (23) | 17 (24) |
Main type of employment | ||
 Employed until further notice | 79 (105) | 80 (112) |
 Project employee | 2 (3) | 1 (1) |
 Substitute | 2 (3) | 3 (4) |
 Employed by the hour | 4 (5) | 5 (7) |
 Self-employed | 6 (8) | 5 (7) |
 Other type of employment | 6 (8) | 5 (7) |
Scope of work | ||
 Full-time | 76 (100) | 77 (107) |
 Part-time, ≥ 15 h/week | 24 (31) | 22 (30) |
Reason for consultationc | ||
 Mental or behavioral | 57 (75) | 50 (69) |
 Musculoskeletal | 47 (62) | 32 (44) |
 Gastrointestinal | 20 (26) | 20 (28) |
 Cardiovascular | 12 (16) | 11 (16) |
 Other | 22 (29) | 19 (27) |
High WSQ-valuesd | ||
 Low influence over work situation | 41 (54) | 39 (54) |
 Indistinct organisation and conflicts | 21 (28) | 19 (26) |
 High work commitment | 48 (63) | 45 (62) |
 Work interference with leisure time | 41 (54) | 40 (55) |