About this trial
Patients, parents of young / handicapped patients, and experts will be interviewed to collect contents relevant for HrQoL in CBS deficiency. Based on these data, a questionnaire will be developed and tested for comprehensibility in patients and parents of young / handicapped patients. A final questionnaire version will be tested for psychometric criteria including validity and reliability.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients with CBS deficiency from age 8 years
Parents of patient(s) < 18 years with cognitive impairment
Parents of patients between age 4 and 7
Experts on CBS deficiency
Disqualifiers
None
Trial population
Patients with CBS deficiency from age 8 years * Parents of patient(s) \< 18 years with cognitive impairment * Parents of patients between age 4 and 7 * Experts on CBS deficiency
Trial design
Other
Prospective
Treatments tested in this trial
Interview
BehavioralInterviews, presentation of questionnaires
Treatment groups
Trial outcomes
Primary outcomes
HrQol
Hrqol
Sponsors and contacts
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