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 exposure | RR 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)* | |||
| No adjustment | 1.62 (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 demand | 1.10 (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 latitude | 0.81 (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 ratio | 1.31 (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) |
| Rewards | 0.70 (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' support | 1.20 (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' support | 0.91 (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) |
| Noise | 1.24 (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 low | 1.20 (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 equipment | 1.21 (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) |
| Bending | 1.36 (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) |
| Kneeling | 1.40 (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 exertion | 1.37 (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 frequency | 1.03 (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 extremes | 1.16 (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) | ||
*Number of injuries.