Rate of workplace and travel to work injury by job category and place of work, for workers who were classified in the same job category and place of work at the start and end of follow up (n=13668)
| Factor | Workplace | Travel to work | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Rate/100 person-years | Adjusted rate ratio5-150 (95% CI) | Rate/100 person-years | Adjusted rate ratio5-150 (95% CI) | ||||||
| Job category: | |||||||||
| Professionals (n=638) | 1.0 | 1.00 | 0.7 | 1.00 | |||||
| Technicians (n=1284) | 2.3 | 2.34 (1.74 to 3.15) | 1.5 | 1.26 (1.49 to 3.13) | |||||
| Support workers (n=1205) | 2.9 | 2.70 (1.98 to 3.67) | 2.8 | 3.86 (2.70 to 5.53) | |||||
| Group leaders (n=194)5-151 | 4.2 | 3.99 (2.50 to 6.37) | 1.6 | 2.14 (1.03 to 4.44) | |||||
| Labourers (n=10347) | 7.5 | 7.35 (5.65 to 9.55) | 2.2 | 3.13 (2.24 to 4.37) | |||||
| χ4 2heterogeneity=1125 | χ4 2heterogeneity=114 | ||||||||
| p<0.0001 | p<0.0001 | ||||||||
| Place of work: | |||||||||
| General support services (n=1435)5-152 | 2.7 | 1.00 | 2.2 | 1.00 | |||||
| Research and production (n=1303) | 4.5 | 1.67 (1.37 to 2.03) | 2.5 | 1.15 (0.94 to 1.41) | |||||
| Energy supply (n=830) | 4.4 | 1.63 (1.31 to 2.03) | 2.0 | 0.91 (0.71 to 1.17) | |||||
| Maintenance (n=1706) | 6.5 | 2.41 (2.03 to 2.86) | 1.9 | 0.88 (0.73 to 1.07) | |||||
| Cranes/rail and trucks (n=720) | 5.9 | 2.36 (1.95 to 2.85) | 1.7 | 0.83 (0.65 to 1.07) | |||||
| Plate mill (n=3532) | 5.9 | 2.25 (1.92 to 2.65) | 2.2 | 1.02 (0.86 to 1.20) | |||||
| Steel mill and foundry (n=2225) | 11.2 | 4.07 (3.45 to 4.79) | 2.4 | 1.05 (0.87 to 1.27) | |||||
| Coke oven and blast furnace (n=1917) | 6.5 | 2.49 (2.10 to 2.95) | 1.8 | 0.85 (0.70 to 1.04) | |||||
| χ7 2heterogeneity=800 | χ7 2heterogeneity=21 | ||||||||
| p<0.0001 | p=0.003 | ||||||||