TABLE III.
Selected Univariate and Final Multivariate Poisson Models of Relative Risk(RR) for any Injury Claim: 1468 Hospital Workers, 2003-2005
| Exposure or risk factor | Univariate models RR (95%CI)a | Final multivariate model RR (95%CI)a |
|---|---|---|
| Physical workload | ||
| Manual handlingb | 1.22 (1.11–1.33) | — |
| Force requirementsb | 1.35 (1.21–1.49) | — |
| Bending and twistingb | 1.53 (1.36–1.72) | — |
| Physical work scaleb,c | 1.41 (1.27–1.58) | 1.23 (1.04–1.45) |
| Work organization | ||
| Time pressureb | 1.01 (0.90–1.13) | — |
| Hazardous conditionsb | 1.36 (1.25–1.48) | — |
| Psychosocial factors | ||
| Psychological demandsd | 1.21 (1.08–1.35) | 1.20 (1.02–1.40) |
| Decision latituded | 0.91 (0.84–0.98) | — |
| Supervisor social supportd | 0.74 (0.64–0.86) | 0.78 (0.58–0.97) |
| Rewardsd | 0.79 (0.69–0.90) | 0.68 (0.52–0.89) |
| Individual factors | ||
| Race (0/1=non-white)e | 0.79 (0.53–1.17) | 0.57 (0.38–0.87) |
| Gender (0/1=female)e | 1.00 (0.77–1.28) | 0.84 (0.63–1.11) |
| Age in yearse | 1.05 (0.99–1.11) | 1.09 (1.03–1.16) |
| Age2 in yearse | 0.99 (0.98–1.00) | 0.99 (0.98–1.00) |
| Tenure (0/1=<2 years)e | 4.64 (3.71–5.80) | 4.83 (3.80–6.14) |
| SES job groups | ||
| Administrators (Reference) | 1.0 | 1.0 |
| Professionals | 3.41 (1.23–9.46) | 2.22 (0.79–6.26) |
| Nurses | 7.16 (2.65–19.33) | 2.82 (0.99–8.03) |
| Semi-professionals | 4.92 (1.80–13.43) | 3.18 (1.13–8.98) |
| Skilled | 3.13 (1.14–8.58) | 2.11 (0.72–6.20) |
| Semi-skilled | 6.42 (2.29–17.98) | 2.59 (0.80–8.33) |
a
Represents the change in risk for every 10% increase in exposure for each variable except for individual factors and PHASE SES where they are compared as indicated.
b
Weighted sum of manual handling, force requirements, and bending and twisting of the body.
c
Weighted average JEM composites from PATH observations and O*NET database values.
d
Variables computed or extracted directly from the O*NET OnLine database.
e
From workforce rosters.