Comparison of scores at baseline and follow-up for workplace risk factors by domain (WHOQOL-BREF questionnaire)
| Domain | International standard (SD) | Baseline | Follow-up | Change from baseline to follow-up | ||||
| n* | Cronbach’s α | Mean (SD) | N | Cronbach’s α | Mean (SD) | Mean (95% CI) | ||
| Physical health | 73.5 (18.1) | 208/217 | 0.57 | 52.3 (10.6) | 150 | 0.64 | 50.0 (10.9) | −2.3 (−4.1 to to 0.5) |
| Psychological well-being | 70.6 (14.0) | 212/221 | 0.65 | 54.3 (9.4) | 152 | 0.67 | 52.2 (10.2) | −2.3 (−4.1 to to 0.4) |
| Social relationships | 71.5 (18.2) | 213/222 | 0.64 | 56.3 (14.2) | 154 | 0.67 | 57.4 (12.8) | 0.7 (−1.9 to 3.2) |
| Environment | 75.1 (13.0) | 213/222 | 0.71 | 42.4 (11.3) | 153 | 0.76 | 41.8 (11.5) | −0.7 (−2.2 to 0.9) |
| WHOQOL-BREF | 207/216 | 0.83 | 50.1 (8.4) | 148 | 0.87 | 48.6 (9.2) | −1.6 (−3.0 to to 0.2) | |
*Numbers given are those with data for domain and the three factors/number with data for domain: population norms: physical health 73.5 (SD = 18.1); psychological well-being 70.6 (14.0); social relationships 71.5 (SD 18.2) and environment 75.1 (SD 13.0).
WHOQOL, World Health Organisation Quality of Life.