Rheumatoid arthritis affects about 1.3 million adults in the United States. Worldwide, it is estimated to occur in up to 1 percent of the population. The disease is two to three times more common in women than in men, which may be related to hormonal factors.
How many people are affected by rheumatoid arthritis ?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: How many people are affected by rheumatoid arthritis ? [/INST] \n Rheumatoid arthritis affects about 1.3 million adults in the United States. Worldwide, it is estimated to occur in up to 1 percent of the population. The disease is two to three times more common in women than in men, which may be related to hormonal factors.</s>