Document ID: chunk:federal_register_of_legislation:F2021L00020:reg:9:p1
Version: federal_register_of_legislation:F2021L00020
Segment Type: reg
Provision Reference: reg 9 (pt 1/3)
Character Range: 5241–8015

9               Factors that must exist
At least one of the following factors must as a minimum exist before it can be said that a reasonable hypothesis has been raised connecting chronic venous insufficiency of the lower limb or varicose veins of the lower limb or death from chronic venous insufficiency of the lower limb or varicose veins of the lower limb with the circumstances of a person's relevant service:
(1)          having deep vein thrombosis within a deep vein that drains the affected lower limb before the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
Note: deep vein that drains the affected lower limb is defined in the Schedule 1 - Dictionary.
(2)          having chronic complete or partial obstruction of a vein that drains the affected lower limb before the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
(3)          being pregnant at the time of the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
(4)          standing for at least four hours per day, on more days than not, for a continuous period of at least the five years before the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
            Note: Standing does not require complete immobility for four continuous hours, and may include intermittent periods of walking short distances.
(5)          having chronic dysfunction of the calf muscle pump in the affected lower limb at the time of the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
            Note: Causes of chronic dysfunction of the calf muscle pump include trauma and motor disorders (such as paraplegia, arthritis, chronic immobility, frozen ankle and severe sedentary state).
(6)          being obese at the time of the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
Note: being obese is defined in the Schedule 1 - Dictionary.
(7)          having an acquired arteriovenous fistula involving the blood vessels that supply the affected lower limb at the time of the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
(8)          having trauma to a valve in a vein of the affected lower limb causing dysfunction or incompetence of that valve before the clinical onset of chronic venous insufficiency of the lower limb or varicose veins of the lower limb;
(9)          having tricuspid valve regurgitation, in the presence of a pulsatile greater saphenous vein, at the time of the clinical onset of chronic venous insufficiency of the lower limb or