Table 5

 RRs of injury by socioeconomic category, unadjusted and adjusted by quintiles of O*NET exposure scores: 114 hospital jobs in 6 strata (reference category = administrators)

O*NET exposureRR per quintile of exposure (95% CI)RR per quintile of exposure adjusted by SES (95% CI)SES-specific RR, adjusted for O*NET exposures (95% CI)
Professionals (29)*Nurses (41)*Semiprofessionals (111)*Skilled (176)*Semiskilled (290)*
*Number of injuries.
No adjustment1.62 (0.49 to 5.32)6.80 (2.18 to 21.2)4.81 (1.53 to 15.1)4.47 (1.43 to 14.0)6.71 (2.08 to 21.7)
Psychological demand1.10 (1.04 to 1.17)1.01 (0.94 to 1.09)1.61 (0.49 to 5.30)6.69 (2.13 to 21.0)4.84 (1.54 to 15.3)4.47 (1.43 to 14.0)6.71 (2.08 to 21.7)
Decision latitude0.81 (0.75 to 0.87)0.70 (0.61 to 0.80)1.58 (0.48 to 5.19)4.55 (1.44 to 14.3)2.53 (0.78 to 8.20)1.86 (0.56 to 6.11)2.35 (0.68 to 8.11)
Job strain ratio1.31 (1.22 to 1.41)1.14 (1.04 to 1.26)1.50 (0.46 to 4.93)4.36 (1.34 to 14.2)3.95 (1.24 to 12.6)3.15 (0.98 to 10.1)4.49 (1.34 to 15.0)
Rewards0.70 (0.65 to 0.76)0.76 (0.67 to 0.86)1.50 (0.46 to 4.92)3.68 (1.15 to 11.8)2.89 (0.90 to 9.33)2.25 (0.69 to 7.34)2.84 (0.83 to 9.72)
Coworkers’ support1.20 (1.13 to 1.28)1.18 (1.08 to 1.29)1.62 (0.49 to 5.32)5.40 (1.72 to 16.9)4.96 (1.57 to 15.6)5.16 (1.65 to 16.2)7.60 (2.35 to 24.6)
Supervisors’ support0.91 (0.86 to 0.96)0.90 (0.82 to1.00)1.67 (0.51 to 5.49)6.46 (2.07 to 20.2)5.51 (1.74 to 17.5)5.71 (1.78 to 18.3)7.99 (2.45 to 26.1)
Noise1.24 (1.17 to 1.31)1.14 (1.05 to 1.24)1.76 (0.54 to 5.79)5.26 (1.67 to 16.6)5.12 (1.63 to 16.1)4.47 (1.43 to 14.0)6.14 (1.90 to 19.9)
Temperature too high or too low1.20 (1.14 to 1.27)1.08 (1.00 to 1.17)1.57 (0.48 to 5.15)5.47 (1.72 to 17.4)4.72 (1.50 to 14.9)4.10 (1.30 to 12.9)5.94 (1.83 to 19.3)
Hazardous equipment1.21 (1.14 to 1.28)1.09 (1.02 to 1.17)1.47 (0.45 to 4.84)5.01 (1.56 to 16.1)4.33 (1.37 to 16.7)3.83 (1.21 to 12.1)5.71 (1.75 to 18.6)
Bending1.36 (1.27 to 1.45)1.29 (1.18 to 1.40)1.08 (0.33 to 3.57)2.92 (0.91 to 9.41)3.33 (1.05 to 10.6)2.66 (0.84 to 8.44)3.46 (1.05 to 11.4)
Kneeling1.40 (1.29 to 1.52)1.27 (1.16 to 1.39)1.25 (0.38 to 4.14)3.90 (1.23 to 12.4)3.38 (1.06 to 10.7)2.93 (0.93 to 9.28)3.99 (1.22 to 13.1)
Force exertion1.37 (1.28 to 1.47)1.29 (1.18 to 1.40)1.14 (0.34 to 3.76)2.91 (0.90 to 9.41)3.23 (1.02 to 10.3)2.66 (0.84 to 8.45)3.46 (1.05 to 11.4)
Pause frequency1.03 (0.98 to 1.09)1.17 (1.09 to 1.26)1.49 (0.45 to 4.91)7.74 (2.48 to 24.2)4.10 (1.30 to 13.0)3.98 (1.27 to 12.5)5.30 (1.63 to 17.2)
Decision latitude+force exertion+supervisor support+temperature extremes1.16 (0.35 to 3.84)2.39 (0.73 to 7.82)2.42 (0.74 to 7.91)2.02 (0.60 to 6.82)2.23 (0.64 to 7.80)