What was the novel "Fight Club"'s intended audience?

I feel as though, it was more male centered due to some of the things said in the book and the general nature of the concept of a fight club. I feel as though it is also centered towards young adults.
Although females could enjoy the book as well; one of my friends read it and really enjoyed it.

Just want to get other people's opinions.
What was the novel "Fight Club"'s intended audience?
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