Q: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Question: Is increased risk of radiographic emphysema in HIV associated with elevated soluble CD14 and nadir CD4?
Answer: HIV is an independent risk factor for radiographic emphysema. Emphysema severity was significantly greater among participants with HIV infection. Among those with HIV, nadir CD4 < 200 cells/L and elevated soluble CD14 level were associated with emphysema, highlighting potential mechanisms linking HIV with emphysema.
A:
yes