You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The poly ahritic condition that is not common inm and explain in detail?
Ref Robbins 9/e p218 Similar to many autoimmune disease ,SLE predominantly affects women.a female to male ratio of 9:1.is seen during the reproductive age get .female to male ratio is only 2:1 for the development of the disease at childhood or at the age of 65