In Spain most of the people wear scrub suit in hospitals and in private practice. In hospitals most of the people wears in white suits and in private practice I think most of the people wears in blue suits.
I think this is important for the patients.
There are some articles about medical doctors dressing and they found differences in the opinion of the people who are attended for a doctor in white coat and people who are attended for a doctor who is wear without a white coat.