Boston ? Obese, but worried that surgery for it might kill you? The risk of that has dropped dramatically, and now is no greater than for having a gall bladder out, a hip replaced or most other major operations, new research shows.

The study looked at safety results for gastric bands and stomach stapling at 10 U.S. hospitals specializing in these procedures from 2005 through 2007. For every 1,000 patients, three died during or within a month of their surgery, and 43 had a major complication.

That is much better than the 20 or so deaths per 1,000 patients that studies found just a few years earlier. And it’s surely lower than the longer term risk of dying of heart disease, diabetes and other consequences of lugging around more pounds than an obese person’s organs can handle, experts say.

Many studies have compared those odds, and “all show a higher risk of dying if you do not have surgical treatment than if you do,” said Dr. Eric DeMaria, weight loss surgery chief at Duke University Medical Center.