Given the complexity of the setting, there is far more possible causations than the implied by the finders of this correlation.
For example, perhaps better funded hospitals have more females on staff, and that drives the clinical outcomes.
Or maybe this relationship was one of thousands of possible relationships, as it is clear they have examined as much, and it's just appeared statistically significant by chance.
For example, perhaps better funded hospitals have more females on staff, and that drives the clinical outcomes.
Or maybe this relationship was one of thousands of possible relationships, as it is clear they have examined as much, and it's just appeared statistically significant by chance.