Risk of sickness absence event and higher percentage of sickness absence relative to working hours in the year after organisational change.
| N | Total SA event | Total SA percentage* | Long-term SA event | Long-term SA percentage* | |||||
| % of N | OR (95% CI) | With SA of N, mean (SD) | RR (95% CI) | % of N | OR (95% CI) | With SA of N, mean (SD) | RR (95% CI) | ||
| No change† | 8471 | 78.68 | 1.00 | 5.58 (8.75) | 1.00 | 5.55 | 1.00 | 23.26 (21.24) | 1.00 |
| Any change | 5688 | 79.32 | 1.01 (0.92 to 1.10) | 5.94 (9.19) | 1.05 (1.03 to 1.06) | 6.43 | 1.15 (1.00 to 1.33) | 23.46 (20.22) | 1.00 (0.97 to 1.03) |
| 1 type of change | 3766 | 80.75 | 1.05 (0.94 to 1.17) | 5.85 (8.70) | 1.01 (0.99 to 1.03) | 6.45 | 1.13 (0.96 to 1.33) | 21.82 (18.90) | 0.93 (0.90 to 0.96) |
| 2 types of changes | 1197 | 79.37 | 1.09 (0.92 to 1.28) | 6.20 (9.80) | 1.13 (1.10 to 1.16) | 6.68 | 1.23 (0.96 to 1.58) | 26.10 (21.00) | 1.13 (1.07 to 1.19) |
| ≥3 types of changes | 725 | 71.83 | 0.77 (0.63 to 0.93) | 6.02 (10.76) | 1.13 (1.08 to 1.17) | 5.93 | 1.13 (0.81 to 1.56) | 28.00 (24.89) | 1.18 (1.11 to 1.25) |
| Merger | 1058 | 74.20 | 0.87 (0.74 to 1.03) | 5.78 (9.30) | 1.09 (1.06 to 1.13) | 6.52 | 1.31 (1.00 to 1.72) | 24.18 (19.00) | 1.05 (0.99 to 1.11) |
| Demerger | 496 | 76.81 | 0.86 (0.68 to 1.08) | 5.51 (8.62) | 1.00 (0.96 to 1.05) | 5.65 | 1.00 (0.67 to 1.50) | 22.32 (15.00) | 0.89 (0.82 to 0.97) |
| Relocation | 961 | 77.52 | 0.99 (0.83 to 1.18) | 5.47 (9.09) | 1.01 (0.98 to 1.05) | 4.89 | 0.91 (0.66 to 1.24) | 26.30 (23.45) | 1.09 (1.03 to 1.16) |
| Change of management | 2195 | 78.59 | 0.96 (0.85 to 1.09) | 5.94 (9.24) | 1.05 (1.03 to 1.08) | 6.29 | 1.10 (0.90 to 1.34) | 23.30 (20.82) | 1.01 (0.97 to 1.05) |
| Employee layoff | 2181 | 78.68 | 1.02 (0.89 to 1.16) | 6.54 (10.83) | 1.16 (1.13 to 1.18) | 7.11 | 1.31 (1.08 to 1.59) | 27.41 (24.01) | 1.17 (1.13 to 1.21) |
| Budget cut | 1762 | 76.90 | 0.93 (0.82 to 1.08) | 5.74 (8.78) | 1.03 (1.01 to 1.06) | 6.02 | 1.09 (0.87 to 1.36) | 22.76 (19.00) | 0.99 (0.95 to 1.04 |
Total sickness absence comprises any sickness absence and long-term sickness absence comprises only spells of ≥29 days.
Zero-inflated Poisson analyses controlled for age, sex, number of employees in the work unit, occupational group, previous sickness absence, child-related absence and personal gross income.
*Percentage of missed fixed working hours due to sickness absence.
†Reference group.
RR, rate ratio; SA, sickness absence.