Hence, the importance of adequate reporting of questionnaire development and survey methodology has been emphasised.
However the prompt to return the diary upon symptom cessation was in an effort to ensure timely reporting of questionnaire information to minimise recall bias.
Similarly, studies reporting validation of questionnaires in Urdu for uses other than measuring psychiatric symptoms were not included.
Results are reported of a questionnaire survey relating to a scale for general health, the Todai Health Index, in a town, bordering on a large U.S. airbase in the Ryukyus.
We assessed the accuracy of questionnaire reports of cat and dog ownership and presence of cockroaches in predicting measured allergen concentrations in house dust.
A similar approach has been adopted and reported in a number of questionnaire development studies [ 42- 45].
Questionnaire reports of physician reported asthma have been used by others and have been found to be reliable [ 38, 39].
Age was calculated as months from the reported birth date to date of questionnaire return.
There have been no previous reports about questionnaire surveys of postgraduate clinical trainees in Japan.
Outcome measures were assessed by a postal questionnaire and reports of subsequent operations.
