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Changes in prevalence of secretory otitis from summer to winter in four-year-old children
Insights
Secretory otitis media prevalence significantly increases from summer to winter in 4-year-olds. Tympanometry revealed worsening ear conditions, with more ears deteriorating than improving during this seasonal shift.
Area of Science:
- Pediatrics
- Otolaryngology
- Epidemiology
Background:
- Secretory otitis media (SOM) is a common childhood condition.
- Seasonal variations in SOM prevalence and severity are suspected but require further investigation.
Purpose of the Study:
- To analyze seasonal changes in the prevalence of secretory otitis media.
- To assess tympanometric condition changes from summer to winter in healthy children.
Main Methods:
- Tympanometry was performed on 288 healthy 4-year-old children.
- Data collection occurred in August 1979, November 1979, and February 1980.
Main Results:
- A significant increase in secretory otitis media frequency was observed from summer to winter.
- Tympanometric conditions significantly deteriorated during the winter months.
- More ears showed deterioration than improvement in tympanometric type during seasonal changes.
Conclusions:
- Seasonal factors significantly impact the prevalence and severity of secretory otitis media in young children.
- Winter conditions are associated with a higher incidence and worsening of SOM.
- While spontaneous improvement occurs, it is less pronounced during winter compared to other seasons.
Abstract:
The changes in prevalence of secretory otitis from summer to winter were analyzed on the basis of tympanometry in 288 healthy 4-year-old children in August and November 1979 and February 1980. There was a significant increase in the frequency of secretory otitis and a significant deterioration of the tympanometric conditions from summer to winter. At each trial, half of the ears changed type, and significantly more ears deteriorated than improved. During winter secretory otitis also shows a tendency to spontaneous improvement, although this is not so pronounced as in the 2-year-old children.