| Topic | Criteria | n () |
| Severe physical impairment at work (010) | 5 | 270 (64) |
| Severe pain | At least moderate pain that affects working ability at minimum three times a week | 81 (18) |
| Self-rated future working ability: | Uncertain of own ability (Uncertain), or quite sure (Not able) not being able | 244 (58) |
| Potential depression (030) | DEPS score 11 | 68 (16) |
| Severe insomnia | Problems in falling asleep or night awakenings AND daytime tiredness daily or almost daily | 60 (14) |
| Work-related fatigue | Very much feeling of being squeezed empty because of work | 35 (8) |
| Work-related stress | Very much feeling tense, strained, nervous and/or anxious because things are on ones mind all the time | 30 (7) |
Sum of percentages exceeds 100 because many subjects had more than one abnormal finding.