People keep trying to make the point that "it's not sexist" because "it's just the facts" - while I agree that it's relevant that women have been more likely to work part-time than men, I disagree with the way the article interprets and presents that information, and believe that the real reason for that gender difference lies in societal pressures and patterns that we should look into. (Kiwifruit and Eli had started taking us in this direction a long time ago, I think.) I've gathered that Dr. Au's article makes this point rather clearly, so I won't elaborate on that, but I think we should think about what these kinds of statistics actually mean.
More women work part-time because women are expected to bear the brunt of childcare. (I'm pretty sure almost everybody wishes that there were a little more equality on that front - when I have children, I intend to be sure that my partner does as much of the childcare work as I do, if practical and possible.) This disparity is induced by societal norms (that are hopefully shifting). In other words, the reason that one disparity (more women work part-time) exists is due to other gender disparities (women are expected to do most of the child-rearing work). This means that any information the statistic gives us is necessarily circular. It's saying, "More women choose to work part-time because society dictates that they are the ones that must work part-time" and then later trying to use the fact that more women work part-time as some sort of interesting piece of information - it's not, since if the world weren't sexist that disparity wouldn't exist. So part of the way to stop being sexist is to stop quoting these kinds of statistics. Hope that makes sense. Point is, I think it's irresponsible to bring up statistics like this, even though the author of the article didn't seem to be making any real point with them. (Why bring up the gender disparities in the first place?)
And as for the point that the author of the article would have made much less offensively if she hadn't brought up gender differences at all: Economically and pragmatically, there's a doctor shortage, and taxpayer money would theoretically be spent more efficiently if fewer doctors worked part-time. I think this problem has to be solved pragmatically, though, and not by saying, "Doctors - you're supposed to be selfless! Stop stealing our money! Why aren't you contributing enough to society?" If we were really concerned about the good of society, we would be a little less short-sighted - aren't we invested in the care of a subsequent productive generation? I think that there should be more resources to facilitate balancing careers and family, for both men and women, in general. I also think that working doctors to the bone might produce burnt-out, cynical doctors that aren't as happy to do what they do, which (wouldn't you agree?) might make a worse doctor for the patients they're treating.