New research shows older people of color may be more likely to get dementia than those who are white, according to a new study published in the JAMA journal.

Researchers analyzed records of almost 2 million people.

They found significant differences in those 55 and older, based on race and ethnicity.

Hispanic participants were nearly two times more likely to develop dementia than white participants. Black patients were one and a half times more at risk.

Researchers don't yet know why the risk was increased for people of color, but said doctors should be aware of the risk factors for dementia so they can help control those factors when possible.