Odds ratios for predictors of neck pain among Finnish office workers in 1998–99 (logistic regression model with interactions, adjusted for time used for VDU work; n=137)
| Neck pain | ||
|---|---|---|
| Predictors | OR | 95% CI |
| AIC = 171.91. | ||
| −2 log L = 145.91 (df=12). | ||
| Compared with the main effects model: 158.94–145.91 = 13.04 (df=5), p<0.05. | ||
| Hosmer and Lemeshow goodness of fit test: p=0.32. | ||
| Work related predictors | ||
| Physical work environment | ||
| Mean score >3 | 1.0 | |
| Mean score ⩽3 | 2.4 | 1.0 to 6.0 |
| Distance of the keyboard from the edge of the table | ||
| Good (⩾15 cm) | 1.0 | |
| Poor (<15 cm) | 1.9 | 0.8 to 4.3 |
| Individual predictors | ||
| Sex | ||
| Male | 1.0 | |
| Female | 6.7 | 1.4 to 30.9 |
| Age | ||
| 25–43 | 1.0 | |
| 44–51 | 2.7 | 0.6 to 12.5 |
| 52–61 | 2.5 | 0.5 to 12.1 |
| Smoking | ||
| Never smoker | 1.0 | |
| Current/ex-smoker | 1.5 | 0.6 to 3.6 |
| Mental stress | ||
| None/little | 1.0 | |
| Some/fairly much/much | 0.5 | 0.2 to 1.4 |
| Frequency of physical exercise (times/week) | ||
| ⩾2 | 1.0 | |
| ⩽1 | 0.8 | 0.2 to 2.7 |
| Interactions | ||
| Age × sex | ||
| 25–43 × male | 1.0 | |
| 44–51 × female | 0.1 | 0.0 to 0.7 |
| 52–61 × female | 1.1 | 0.1 to 10.3 |
| Mental stress × frequency of physical exercise | ||
| None/little × ⩾2 | 1.0 | |
| Some/fairly much/much × ⩽1 | 6.7 | 1.0 to 43.6 |