Originally posted by Fox-Gal
Maybe the study needs to have a third category: Life expectancy of a indoor/outdoor cat, with proper care. Not that I don't think that the study is right, but sometimes studies are too black and white. They most likely did full outdoor cats and fully indoor cats not acounting for the half and half group.
I think that's why I was so surprised - I was thinking of mine who are indoor/outdoor in a safe environment and a reasonable amount of supervision. All of mine who have been indoor/outdoor were not exposed to the outside for several months after we got them, and then were closely watched.

And right now they are more indoor than out - epecially in inclement weather.