Originally posted by Whisker Barrel Cortex
It really depends on the specialty and the program. Most internal medicine programs (I am a preliminary medicine intern), the upper levels have a lot better schedule than interns. The bulk of the 90-100 hour work weeks that laws are trying to prevent are in the 1st year. One of the unfortunate effects of the mandatory 80 hour work week, at least at my program, is that much of the hours will be shifted to the 2nd and 3rd year residents. Instead of 60-70 hour weeks as a 3rd year, you will be working 80hrs to make up for the interns who must leave the hospital. Many residents are dissatisfied with this approach.
As for radiology (what I will be starting next year), the hours are pretty good throughout you do less call as you progress through the program, with the 5th year residents taking the least call.