This is an old revision of the document!
DCD is the name of an additional questionnaire
PROTOCOL
PERIOD
The data was collected in march- june 2017. Questionnaires were send to parents of children aged 4 up to 12 years.
[…] participants were invited for QADH
The response rate was [x]% (n=xxx).
The selection criteria were the following:
The following variables were collected: