how to understand this sentence
•What’s more, women who worked part-time made greater progress. They did better than the stay-at-home crowd and, in some cases, full-timers, in terms of health and stress.
Does it mean that women working part-time also did better than women working full-time in terms of health and stress?
Does it mean that both women working part-time and full-time did better than women staying at home?
I cannot understand the sentence because of the commas.
Thanks for your help!
Re: how to understand this sentence
It means the part-timers did better than SOME full-timers.
They did better than stay-at-home moms - no qualifications
They did better than full-timers - in some cases.