PHILADELPHIA — For the first time, it takes only a couple of mouse clicks to access information on how Pennsylvania hospitals stack up against each other.

The Pennsylvania Health Care Quality Alliance is starting a new Web site — www.phcqa.org — that has reports that compare performance and outcomes of all 162 primary acute care hospitals.

Users of the Web site can look up hospitals with the best (and worst) track records for treating heart attacks, heart failure, pneumonia, or preventing certain hospital-acquired infections during a certain year. Those four categories were the first chosen, in part, because they are ailments among the most common and most costly for hospitals.

The site allows users to compare one hospital to another, or to state and national averages for quality of care in those categories. It can also search hospitals by ZIP code, county or name.