Barri Rafferty is CEO of Ketchum North America, a PR firm. In 2012 and 2014 she attended the World Economic Forum in Davos, but this year she is staying home. She talked to Fortune about what it's like being a female CEO at a conference where this year only 17 percent of attendees will be women. In some ways the conference is amazing. But:

In the evening events in particular, a lot of men take their wives. When you are in [those] social settings, often people assume that you are someone's wife. But as a woman in business at my level, you are used to not being in the majority so you really have to go into it with the kind of attitude that you are going to be there out drinking with the guys and enjoy the whole thing. But I think you are conscious about of it at times and say to yourself, 'Wow we still have work to do.'

Rafferty talked about some of the same issues last year, to CNBC.