Rhinosinusitis is a very common complaint at ENT departments, whereby symptoms of the
underlying disease are varying. Therefore, there is growing interest in prevalence of
rhinosinusitis including differences in prevalence's depending on where the patient grew
up. Further, there is growing interest in answering the question if different factors,
including ENT-surgeries in medical history have an impact on symptoms of rhinosinusitis.

Within the past few years there is growing interest in carring out as many
HPV-vaccinations as possible in order to reduce the prevalence of HPV-associated cancers.

Further, in adolescents there is a growing number of hearing impairments, including
hearing loss and/or sounds in the ears.

Next, since the beginning of the COVID pandemic there are very common complaints in adult
and pediatric patients about persistent medical problems for weeks or months after an
acute SARS-CoV-2-infection and cannot be explained by another diagnosis, called long-
Covid disease.

The military induction board of conscripts enables access to data from a cross-section of
the population, with common characteristics of gender and age.

In the present study we want therefore to evaluate in conscripts at the military
induction board the prevalence of rhinosinusitis, the prevalence of HPV vaccinations, the
prevalence of hearing impairments and the prevalence of long-COVID symptoms and further,
to evaluate different factors that influence on the one hand the prevalence (urban-bred,
non-urban-bred) and on the other hand symptoms (ENT-surgeries in medical history).
Further, we want to evaluate if there is a correlation between subjective symptoms and
apparated-based diagnostic investigations.