Obviously, many people in Western society get stuck in an increasingly elaborate, circular theistic stage. I'd categorize "theistic beliefs" as including deistic (pre-cosmology and pre-evolution supernatural agency) or theistic (varying degrees of God did it) beliefs coupled with the emotionally essential afterlife beliefs.
Deism: The belief that God exists but is not involved in the world. It maintains that God created all things and set the universe in motion and is no longer involved in its operation. (www.carm.org/dictionary/dic_c-d.htm)
Theism: the doctrine or belief in the existence of a God or gods. (wordnet.princeton.edu/perl/webwn)
I am including within the concept of theism, both deism and more-interfering-deity beliefs.