Table 3. Associations between sleep disturbance and feelings about work and its demands, with estimated population attributable fractions.
| Risk factor | Severe difficulty falling asleep | Severe difficulty staying asleep | Severe problem waking early | Feeling unrefreshed | Insomnia |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OR | 95%CI | OR | 95%CI | OR | 95%CI | OR | 95%CI | OR | 95%CI | PAF% | 95%CI | ||
| Choice at work | |||||||||||||
| Often/sometimes | 1 | 1 | 1 | 1 | 1 | ||||||||
| Rarely/never | 2.1 | 1.6-2.9 | 1.6 | 1.3-2.0 | 1.5 | 1.2-1.8 | 1.6 | 1.3-1.9 | 1.5 | 1.3-1.8 | 7.0 | 3.4-1.05 | |
| Support from colleagues | |||||||||||||
| Often/sometimes | 1 | 1 | 1 | 1 | 1 | ||||||||
| Rarely/never | 2.3 | 1.6-3.3 | 2.1 | 1.7-2.8 | 1.8 | 1.4-2.4 | 1.9 | 1.5-2.5 | 1.9 | 1.5-2.3 | 6.9 | 3.9-9.8 | |
| Paid by output | |||||||||||||
| No | 1 | 1 | 1 | 1 | 1 | ||||||||
| Yes | 1.1 | 0.7-1.5 | 1 | 0.8-1.3 | 0.9 | 0.7-1.2 | 0.9 | 0.7-1.1 | 1 | 0.8-1.2 | -0.5 | -3.3-2.1 | |
| Overall job satisfaction | |||||||||||||
| Satisfied | 1 | 1 | 1 | 1 | 1 | ||||||||
| Dissatisfied | 4.5 | 3.2-6.4 | 3.9 | 3.0-5.1 | 3.6 | 2.8-4.6 | 4.4 | 3.5-5.6 | 3.9 | 3.1-4.9 | 9.9 | 7.3-12.3 | |
| Feeling of achievement | |||||||||||||
| Often/sometimes | 1 | 1 | 1 | 1 | 1 | ||||||||
| Rarely/never | 3.2 | 2.2-4.6 | 2.7 | 2.1-3.6 | 2.6 | 2.0-3.4 | 2.9 | 2.2-3.7 | 2.9 | 2.3-3.6 | 7.7 | 5.2-10.0 | |
| Feeling of appreciation | |||||||||||||
| Often/sometimes | 1 | 1 | 1 | 1 | 1 | ||||||||
| Rarely/never | 3.4 | 2.5-4.7 | 2.4 | 1.8-3.0 | 2.7 | 2.1-3.3 | 2.6 | 2.1-3.3 | 2.5 | 2.1-3.1 | 9.2 | 6.4-11.9 | |
| Job security | |||||||||||||
| Secure | 1 | 1 | 1 | 1 | 1 | ||||||||
| Insecure | 1.5 | 1.1-2.0 | 1.6 | 1.3-1.9 | 1.5 | 1.2-1.8 | 1.7 | 1.5-2.1 | 1.6 | 1.4-1.9 | 18.4 | 12.2-24.2 | |
| Difficult colleagues | |||||||||||||
| No | 1 | 1 | 1 | 1 | 1 | ||||||||
| Yes | 2.2 | 1.7-2.8 | 1.7 | 1.4-2.1 | 1.8 | 1.5-2.2 | 2.2 | 1.8-2.6 | 1.9 | 1.6-2.1 | 17.3 | 12.4-21.9 | |
| Friendship at work | |||||||||||||
| Yes | 1 | 1 | 1 | 1 | 1 | ||||||||
| No | 1.5 | 1.1-2.0 | 1.5 | 1.3-1.8 | 1.3 | 1.1-1.6 | 1.5 | 1.2-1.7 | 1.4 | 1.2-1.7 | 15.1 | 8.1-21.5 | |
| Being criticised unfairly at work | |||||||||||||
| Sometimes/rarely/never | 1 | 1 | 1 | 1 | 1 | ||||||||
| Often | 4.1 | 2.4-7.0 | 3.9 | 2.6-5.9 | 4.1 | 2.8-6.1 | 5.2 | 3.6-7.7 | 4.2 | 3.0-6.1 | 3.8 | 2.3-5.4 | |
| Coping with physical demands | |||||||||||||
| Easily | 1 | 1 | 1 | 1 | 1 | ||||||||
| At least some difficulty | 4.3 | 3.3-5.7 | 3.2 | 2.7-3.9 | 3.1 | 2.6-3.7 | 3.8 | 3.2-4.6 | 3.6 | 3.1-4.1 | 33.4 | 28.8-37.8 | |
| Coping with mental demands | |||||||||||||
| Easily | 1 | 1 | 1 | 1 | 1 | ||||||||
| At least some difficulty | 3.1 | 2.4-4.1 | 2.9 | 2.4-3.5 | 3.0 | 2.5-3.6 | 3.5 | 3.0-4.2 | 3.2 | 2.8-3.8 | 33.3 | 28.4-37.8 | |
Odds ratios (OR) were adjusted for age and sex; CI – confidence intervals; PAF – population attributable fraction