Table 1 Baseline characteristics of the study population
Domains |  | SHCa (N = 213) | Other disorders (N = 1037) | ||
|---|---|---|---|---|---|
Categories/Ranges | Mean/Nb | SDc/% | Mean/N | SD/% | |
Demographic | |||||
 Age in years | 18–34 | 16 | 8% | 54 | 5% |
35–44 | 36 | 17% | 126 | 12% | |
45–54 | 75 | 35% | 350 | 34% | |
55–65 | 86 | 40% | 507 | 49% | |
 Gender | Male | 76 | 36% | 561 | 54% |
 Marital status | Married or partner | 152 | 71% | 777 | 75% |
 Breadwinner of the family | Yes | 127 | 60% | 676 | 65% |
 Land of birth | The Netherlands | 193 | 91% | 947 | 91% |
 Educational level | None/Primary school | 24 | 11% | 87 | 8% |
Secondary school | 78 | 37% | 419 | 41% | |
High school | 68 | 32% | 335 | 32% | |
Bachelor/Master | 43 | 20% | 194 | 19% | |
Socio-economic and work-related | |||||
 Collar job | Blue | 60 | 29% | 337 | 34% |
White | 87 | 42% | 336 | 34% | |
Pink | 61 | 29% | 316 | 32% | |
 Employer | Yes | 77 | 36% | 366 | 37% |
 Usual working time in hours | 4–60 | 31.64 | 10.34 | 32.69 | 10.91 |
 Work schedule | Regular | 144 | 68% | 664 | 64% |
 Managerial position | Yes | 42 | 20% | 227 | 22% |
 Job demands | Psychological | 48 | 23% | 244 | 24% |
Physical | 77 | 36% | 330 | 32% | |
Psychological and physical | 88 | 41% | 456 | 44% | |
 Stressors | 16–64 | 38.56 | 9.44 | 38.27 | 9.25 |
 Support | 21–84 | 58.20 | 13.02 | 58.90 | 12.73 |
 Previous absenteeism same reason | Yes | 109 | 51% | 479 | 47% |
 Work disability benefit | No | 51 | 26% | 144 | 14% |
Partial | 50 | 25% | 257 | 26% | |
Complete | 99 | 49% | 600 | 60% | |
Health-related | |||||
 Use of specialist care last 2 years | Yes | 191 | 90% | 879 | 85% |
 Use of psychiatric care last 2 years | Yes | 120 | 56% | 486 | 47% |
 Use of medication | Yes | 196 | 92% | 922 | 89% |
 Depressive disorder | No | 68 | 32% | 383 | 37% |
Maybe | 50 | 24% | 233 | 23% | |
Yes | 94 | 44% | 419 | 40% | |
 Anxiety disorder | No | 82 | 39% | 412 | 40% |
Maybe | 44 | 21% | 244 | 23% | |
Yes | 86 | 40% | 381 | 37% | |
 Severity of complaints | Mild | 39 | 18% | 344 | 33% |
Moderate | 56 | 26% | 362 | 35% | |
Severe | 118 | 56% | 331 | 32% | |
 Physical Health | 0–100 | 29.73 | 8.89 | 31.57 | 9.79 |
 Mental Health | 0–100 | 33.32 | 12.58 | 34.68 | 13.81 |
 Health change comparing last year | Worse | 124 | 58% | 556 | 54% |
Same | 51 | 24% | 306 | 29% | |
Better | 37 | 18% | 174 | 17% | |
 Hypochondria | Yes | 155 | 73% | 706 | 68% |
 Symptom scale | 20–80 | 46.60 | 11.16 | 44.94 | 12.05 |
 Coping strategies | 17–68 | 43.40 | 9.77 | 42.70 | 9.52 |
Self-perceived ability | |||||
 Return to work expectation | Yes or maybe | 148 | 70% | 688 | 66% |
 Disability | 7–28 | 25.31 | 3.50 | 24.84 | 3.64 |
 Work ability in general | 0–10 | 1.99 | 1.78 | 2.20 | 1.95 |
 Work ability in context of work load | 0–10 | 4.13 | 1.50 | 4.28 | 1.62 |
 Possibilities for returning to work | 0–36 | 9.83 | 7.81 | 9.53 | 8.15 |