to generalise on R.N. casualties,
it was French practice to aim at masts, spars & rigging in fleet actions rather than the hulls. This was the opposite of British tactics. The concept was to incompacitate the enemy vessel. The result meant comparitevely few British casualties.
The high numbers of non-battle casualties are the result of years of blockade & the dangerous & back-breaking nature of sailing warships.
I would like to see, if available, the number of R.N. sailors invalided out due only to ruptures.