Systemic lupus erythematosus
The rate of SLE varies between countries, ethnicity, and sex, and changes over time. In the United States, one estimate of the rate of SLE is 53 per 100,000; other estimates range from 322,000 to over 1 million. In Northern Europe the rate is about 40 per 100,000 people. SLE occurs more frequently and with greater severity among those of non-European descent. That rate has been found to be as high as 159 per 100,000 among those of Afro-Caribbean descent. Childhood-onset systemic lupus erythematosus generally presents between the ages of 3 and 15 and is four times more common in girls.
National Eating Disorders Association
As many cases go unreported, it is difficult to estimate how many people in the United States suffer from eating disorders. The National Association of Anorexia Nervosa and Associated Eating Disorders (ANAD) and the -03-28|df= report that anywhere between 7 and 10 million women, and 1 million men suffer from anorexia nervosa or bulimia; millions more suffer from binge-eating disorder. ANAD points out that, "All segments of society are affected: Men and women, young and old, rich and poor, all ethnicities, [and] all socio-economic levels." “The American College of Physicians lists eating disorders as one of the nine most serious problems affecting adolescents and young adults, and anorexia nervosa…as the third most common chronic illness.”