I've found their statistics to be focused on a broader base of employers than just startups, so I'd expect salaries in their data to likely be higher since they don't factor in equity. You can use this formula for adjusting for the value of the equity:
Interesting, I would have gone the other way (assuming salaries in data were lower), as I think there's quite a bit of inflation in startup job offers.
Also, I wonder how best to account for stock units vs options as far as equity awards go.
I made the comment because I find that startups (or the recent brand of startups with crazy valuations and relatively cheap operating costs) are the ones that push 80K/90K+ salaries (at the very least) for people straight out of college and nice office perks.
A few years ago (and probably still now), people could get hired by big companies like HP/Dell/Intel/Oracle (or other big companies whose main competency isn't necessarily computing) with relatively low salaries (lets say 60K or 70K). This only really applies to recent grads/relatively young developers though, I guess.
https://news.ycombinator.com/item?id=10529567