The HPV vaccine was developed to prevent cervical cancer in women and experts give it credit, along with screening, for lowering cervical cancer rates. Evidence that the shots are preventing HPV-related cancers in men has been slower to emerge, but the new research suggests vaccinated men have fewer cancers of the mouth and throat compared to those who didn’t get the shots. These cancers are more than twice as common in men than in women.

For the study, researchers compared 3.4 million people of similar ages—half vaccinated versus half unvaccinated—in a large health care dataset.

As expected, vaccinated women had a lower risk of developing cervical cancer within at least five years of getting the shots. For men, there were benefits too. Vaccinated men had a lower risk of developing any HPV-related cancer, such as cancers of the anus, penis and mouth and throat.