Approximately 200,000 people die worldwide annually as a result of OP poisoning.
I presume you got that from wikipedia? If you follow the link on the wikipedia article (
citation 2) you'll see that the 200k figure came from a review that primarily discusses
self-poisoning. Therefore the 200k figure is not suitable to the debate here.
As I've said before, this is one of the major problems with the cabin air debate: The entire thing is centred upon a bunch of poorly-researched bits-and-pieces without any proper analysis. That really, really, needs to change. Airlines, of course, won't drive that change so it is - unfortunately - up to the crews and other individuals who are worried about their own health.