Table 5.
Factor loadings identified using principal component analysis and the orthogonal VARIMAX rotation *
| Domain | Abbreviated item description | Factor1 | Factor2 |
| Work Station | Office equipment |
Computer position | |
| My desk at work has suitable height | 0.54 | 0.22 | |
| I have enough space to work at my office | 0.51 | 0.42 | |
| I have a file holder I use when I am typing | 0.74 | 0.04 | |
| My chair supports my lower back | 0.57 | 0.30 | |
| Keyboard is placed directly in front | 0.42 | 0.69 | |
| I sit straight in front of screen | 0.03 | 0.68 | |
| Eigenvalue | 1.72 | 1.42 | |
| % of Variance | 21.5 | 17.9 | |
| Body Posture | Head and body posture |
Awkward body posture |
|
| I find my job physically exhausting | 0.98 | 0.01 | |
| When I work my hand is placed in a straight line | 0.55 | 0.01 | |
| When I work my head is bended | 0.98 | 0.03 | |
| When I work my head is twisted towards the left or right | 0.98 | -0.01 | |
| When I work my body is twisted towards the left or right | 0.98 | -0.06 | |
| I sit in a symmetrical position | 0.97 | -0.04 | |
| I sit for long hours in one position | -0.06 | 0.87 | |
| For 2 hours per day I sit with lifted shoulders | 0.05 | 0.88 | |
| During my work I sit in an awkward posture | 0.02 | 0.98 | |
| My work requires performing repetitive tasks | 0.07 | 0.92 | |
| Eigenvalue | 7.10 | 1.55 | |
| % of Variance | 24.0% | 17.5% | |
| Break Time | Autonomy | Break quality | |
| I can divide my work tasks | 0.67 | 0.47 | |
| I find my work breaks sufficient | 0.68 | 0.28 | |
| I can decide when to take a break | 0.77 | 0.08 | |
| I can decide when to start and to stop | 0.78 | 0.21 | |
| I alternate in my body position | 0.06 | 0.59 | |
| I alternate in my job task | 0.41 | 0.65 | |
| I perform job tasks without a computer | 0.53 | 0.59 | |
| After 2 hours work I take a break for at least 10 minutes | 0.31 | 0.51 | |
| My breaks are spent outside the office | 0.36 | 0.79 | |
| Eigenvalue | 3.41 | 1.65 | |
| % of Variance | 37.9% | 18.4% | |
| Job Control | Skill discretion | Decision authority | |
| I participate with other colleges in decision making | 0.75 | 0.64 | |
| I participate in implementation of job tasks | 0.75 | 0.64 | |
| My work develops my abilities | 0.72 | 0.67 | |
| In my work I have the chance to learn new things | 0.74 | 0.65 | |
| I have to be creative in my work | 0.73 | 0.66 | |
| I undertake different tasks in my work | 0.77 | 0.62 | |
| I decide how to perform my job task | 0.66 | 0.73 | |
| I determine the time & speed job tasks | 0.63 | 0.76 | |
| I solve work problems by my self | 0.64 | 0.75 | |
| Eigenvalue | 8.83 | 0.06 | |
| % of Variance | 48.7 | 12% | |
| Job Demands | Time pressure | Task complexity | |
| I find trouble to finish my job tasks | 0.76 | 0.21 | |
| I take regular over times | 0.80 | -0.02 | |
| I have limited time to finish my job | 0.74 | 0.13 | |
| I work with max speed to finish my tasks | -0.19 | 0.59 | |
| I work under extensive work pressure | 0.14 | 0.73 | |
| I find my work tasks difficult | 0.40 | 0.62 | |
| Eigenvalue | 2.36 | 1.12 | |
| % of Variance | 33.7 | 16.1 | |
| Social Support | Social support | Work flow | |
| I find support from supervisors | 0.92 | 0.33 | |
| I receive positive comments | 0.93 | 0.33 | |
| My colleagues are helpful | 0.81 | 0.26 | |
| My supervisors are helpful | 0.93 | 0.33 | |
| I get personal advice from my colleagues | 0.92 | 0.33 | |
| My supervisors are considerate | 0.81 | 0.25 | |
| No contacts with other colleagues | 0.92 | 0.32 | |
| The work flow goes smoothly | 0.47 | 0.80 | |
| I can ask and enquire in my work | 0.47 | 0.81 | |
| My work tasks depend on other colleagues | 0.18 | 0.90 | |
| The work atmosphere is comfortable | 0.18 | 0.90 | |
| I find support from colleages | 0.47 | 0.81 | |
| Eigenvalue | 8.96 | 1.72 | |
| % of Variance | 53.2% | 35.8% | |
Only items with a factor loading >0.5 on at least one factor are reported