[assmanreturns]

Sure. This is in every single study using surveys or statistics and yet everyone thinks the paper is making a casual argument. The paper itself actually does do that. So the whole limitations part is just ass covering for the fact that the authors are lying.

Why call it anything else. I mean it's like me writing a long paper proving that thermodynamics is flawed and then ending the paper with some acknowledgement that one of the key arguments has a logical flaw which renders the whole proof incorrect. So then the whole paper is worthless.

[cpncrunch]

They do adjust the results for certain lifestyle factors, in particular exercise and smoking. They are just pointing out that they can't correct for all lifestyle factors.