In case of the children the parents answered the questionnaire, in case of the adolescents they answered themselves.
The Lc65+ follow-up includes an annual self-administered questionnaire (or an interview questionnaire in case of deteriorated health or cultural circumstances).
Seventy-two of the 2805 questionnaires were excluded, either because they could not be delivered (patient had moved or had given a false address), the patient had died, or the patient was sent more than one questionnaire (in case of multiple contacts).
The control group (Group B) was selected based on the exact match of age, sex and specialty as Group A. When there were more than one match, we randomly selected one before developing questionnaire in case of arbitrarily selecting matching controls who are less capable than the treated individuals.
After completion of the questionnaires, or in case of renouncing participation, each adolescent put the questionnaires into the envelope, sealed it, and handed it over to the teacher, who forwarded the envelopes to one of the authors (BM).
We were not aware of any other study assessing quality of life using the EQ-5D™ questionnaire in cases of simple two-part intertrochanteric fractures.
Patients were excluded if they 1) were diagnosed with crack cocaine or heroin abuse or dependence, 2) currently received treatment for other mental health problems, 3) had insufficient knowledge of the Dutch language to complete questionnaires, and 4) in case of severe mental health problems (e.g., psychosis, suicidal ideation) or cognitive disorders (e.g., Korsakoff's syndrome).
Table 9 shows that the average total costs are higher when using patient questionnaires, £7,714 per patient in case of patient questionnaires and £6,508 in case of patient records.
Level1 activities include mailing of the follow-up questionnaire and - in case of no response - two reminder letters.
The investigators assisted the completion of the questionnaires in case the parents had problems of semantics or conceptual understanding.
