Maybe, but I just don't fall in with that assumption that the majority of smokers are poor.
Come on, walk through a wealthy neighborhood and count the people smoking, then come down here where I live and do the same. Some things don't take a multi million dollar study to figure out. I am a smoker and don't consider myself poor. Let me point out also that "urban" is "not only" poor and poor is an unfair description as many who are in lower income brackets don't qualify as "poor". Right now I qualify as "lower income" while I am unemployed. If you want statistics I'll try to dig them up for you.