Parachute jumping for charity is not cost-effective in raising money, as the cost of treatment of the 11% who are injured is far in excess of any money raised by the rest.
There analysis is correct. They looked across all charity parachutists, the medical costs for those injured versus total amount raised.
How can it put a burden on the NHS?
Of 105 patients admitted to hospital, 66 (63%) required operative intervention.
Can you imagine the 1 or 2 hospitals dealing with this? The system overall can deal with it, but not the local providers.