However, due to ethical considerations it was not possible to include such, since burden caused by filling in both questionnaires was considered not acceptable for these patients.
In both questionnaires asked items are divided into 5 neurodevelopment areas: Gross motor, Fine motor, Language, Social development & Problem Solving ability.
We examined the changes in the summated scale explanation measures from pre-visit to post-visit for the four organisms (virus, finch, ant, and human) included in both questionnaires.
According to categorical data in questionnaires there was no significant difference (p = 0.12) in the frequency of all headaches combined during pregnancy (Q2, n = 1,122 had headache and answered) compared to before (Q1, n = 1,269 had headache and answered) among women who participated in both questionnaires (n = 1,618).
Target population was the children reporting at least two symptoms of wheezing, rhinitis and eczema in both questionnaires.
High correlations of OBN, DED, and VRS scales across the two questionnaire versions suggested that these scales measure similar constructs in both questionnaires.
They also appear in the same order in both questionnaires, but are interspersed by 5D-ASC unique items when presented to the subjects as part of the 5D-ASC.
Only three experts participated in both questionnaires.
153 students (60.8% female) filled in both questionnaires (no dropouts).
These repeat questions were answered the same in both questionnaires.
Seventy-seven percent (n = 1,042) filled in both questionnaires.
