Scleroderma disease?

Is this diease more predominant in one nationality or race?

There is evidence that there may be a gentic predisposition to this disease. The cause of scleroderma is not known. "Researchers have found some evidence that genes are important factors, but the environment seems to also play a role. The result is activation of the immune system causing injury to tissues that result in injury similar to scar tissue formation. The fact that genes seem to cause a predisposition to developing scleroderma means that inheritance at least play a partial role. It is not unusual to find other autoimmune diseases in families of scleroderma patients.
Some evidence for the role genes may play in leading to the development of scleroderma comes from the study of Choctaw Native Americans who are the group with the highest reported prevalence of the disease. The disease is more frequent in females than in males."
http://www.medicinenet.com/scleroderma/a...

There's no overwhelming evidence that this is so. Factors such as race and ethnicity, MAY have something to do with it. Nationality (one's nation of birth or affiliation) probably has nothing to do with it.
I'm a nurse.
It is an autoimmune disorder. It has nothing to do with race or nationality.
I have personally never seen it in black people....

I am white, female, and got morphea, a linear form of scleroderma when I was about 4 years old. I was told when I visited mayo clinic that there were only 2 other children in the country back then who had been diagnosed with it.