Froedtert Hospital has been named a 2017 Leader in LGBTQ Healthcare Equality by the Human Rights Campaign Foundation, the educational arm of the country's largest lesbian, gay, bisexual, transgender and questioning/queer civil rights organization.
Indeed, the data presented here confirm that dude is an address term that is used mostly by young men to address other young men; however, its use has expanded so that it is now used as a general address term for a group (same or mixed gender), and by and to women.
This version of the word is still in occasional use in American slang, as in the phrase all duded up for getting dressed in fancy clothes. The word was used to refer to Easterners and referred to a man with store bought clothes. The word dude derived from the Spanish phrase lo dudo meaning doubtful.