I want to know the answer to the following question:
People who have cats or dogs make fewer visits where?
All the background I'm provided with is that "Studies suggesting that there are benefits to physical health and psychological wellbeing have been criticised for being poorly controlled, and finding that "[t]he health of elderly people is related to their health habits and social supports but not to their ownership of, or attachment to, a companion animal."". Is that enough to answer the question?