Table 4.
Relation between demographic and background variables with work ability index and its subscales
| WAI | Background variables [Pearson and Spearman correlation (p-value)] | ||||
|---|---|---|---|---|---|
| Age | Body mass index | Experience | Number of shifts | Number of patients under supervision | |
| Current work ability compared with the lifetime best | 0.15 (0.0.6) | −0.03 (0.7) | 0.18* (0.03) | 0.09 (0.28) | −0.1 (0.23) |
| Work ability in relation to the demands of the job | 0.04 (0.57) | −0.004 (0.96) | 0.04 (0.59) | 0.05 (0.53) | 0.49 (0.56) |
| current diseases diagnosed by a physician | −0.19* (0.02) | 0.22* (0.01) | −0.23* (0.001) | 0.05 (0.53) | −0.12 (0.17) |
| Estimated work impairment due to diseases | −0.15 (0.07) | −0.31* (0.001) | −0.14 (0.09) | 0.1 (0.24) | −0.06 (0.47) |
| Sick leave during the past 12 months | −0.36* (0.001) | 0.07 (0.38) | −0.34* (0.001) | 0.1 (0.24) | −0.23 (0.001) |
| Personal prognosis of work ability 2 years from now | −0.29* (0.001) | −0.02 (0.8) | −0.28* (0.011) | 0.1 (0.24) | 0.03 (0.69) |
| Mental resources | 0.2* (0.01) | 0.08 (0.34) | −0.19* (0.02) | 0.1 (0.24) | −0.01 (0.86) |
| Total score of WAI | −0.33* (0.001) | −0.18* (0.03) | −0.32* (0.001) | 0.09(0.29) | −0.11 (0.19) |
*
Significant at a confidence level of 95%