personally i see huge difference between being religious and being spiritual.
second, that contradicts with what i see with my own eyes here.
third there is no age groups in the study. i am talking about young women of 20-40 age. i do admit that on a few occasions when i happened to be at a church service there were mostly women, that is old 60+ ladies. i think it's natural for people to search for a higher source of meaning the closer they get to death. to me that's more of a compelled thing rather than genuine, which should happen earlier in life.
forth, the study almost exclusively covers abraham religions.