Significant contributing factor

In determining whether a worker's employment was a significant contributing factor to an injury, the following must be taken into account —

1. the duration of the worker's current employment
2. the nature of the work performed
3. the particular tasks of the employment
4. the probable development of the injury occurring if that employment had not taken place
5. the existence of any hereditary risks
6. the life style of the worker
7. the activities of the worker outside the workplace.