Biotech Values

[loparn]

Re quiz

Some sort of bias etc as the study concludes : "although bias from reverse causation, misclassification and confounding cannot be excluded."

And regarding the Twin Register :

"Multivariable-adjusted estimates for composite CVD, HR 1.09 (95% CI, 0.92–1.28), and all-cause mortality, HR 0.89 (95% CI 0.73–1.09) overlapped with estimates from the national cohort, but the estimate for CVD was in the opposite direction.

I find that the higher HR (1,09) for dog owner twins for CVD might indicate that there is "a dog buried" here as we say in Swedish regarding the possible bias factor of who actually chose to buy a dog.

In any case there seems to be a very little advantage, if any, when you only study twins.