Anyone can get lupus, but it is most common among girls and women. More than 90 percent of people with lupus are female.
In this country, lupus is more likely to occur among people who are African-American, Hispanic-Latino and Native American. African-Americans and Hispanic-Latinos tend to develop lupus at a younger age and have more severe symptoms than white Americans.
Between 1.5 million and 2 million Americans, including 5,000 to 10,000 children, have some form of lupus, according to estimates from the Lupus Foundation of America. The actual number may be higher.