1. General questions

Thank you for participating in the survey on aHUS (atypical hemolytic uremic syndrome). Many insights on aHUS have been gained in the past decade and new treatments options are currently under development. We would like to know your opinion on treatments options from a patient's perspective.

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* 1. How were you contacted to participate in this survey?

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* 2. Other ways of being contacted to participate in the survey:

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* 3. You are a parent of a child with aHUS

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* 4. What year were you born (aHUS patient)?

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* 5. Gender (aHUS patient)?

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* 6. Where do you live? (country of residence)

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* 7. If not selected above, where do you live? (country of residence)

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* 8. I have following type of health insurance

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* 9. What age did the first episode of aHUS occur? (years)

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* 10. Did you ever require dialysis during your disease (aHUS patient)?

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* 11. Are you still on dialysis (aHUS patient)?

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* 12. For how long were you on dialysis (aHUS patient)?

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* 13. How many kidney transplantats have you had (aHUS patient)?

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* 14. Do you know your current creatinine value? (umol/l) * leave blank if unknown

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* 15. Do you know your current urinary protein value? (g/day) * leave blank if unknown

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* 16. Is your blood pressure frequently >140/90mmHg or are you on blood pressure lowering treatment?

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* 17. Anything you would like to add?

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