Signs and Evidence

Making clinical sense of scientific data


Beware of the limitations of this tool

Eye - Ear - Nose - Throat

Choose the relevant clinical signs you want to include in the calculation of posttest probabilities. The strongest signs are listed the highest.


1Ear pain

Clinical signs

6Bulging tympanic membrane
7Cloudy tympanic membrane
8Red tympanic membrane

Select the conditions you want to compare

Pretest probabilities will be calculated based on averages from relevant studies.

 Select or deselect all boxes

Age 3 - 6

Sources used:

1.Sandi Pirozzo et al. Acute otitis media. West J Med. 2001 Dec; 175(6): 402–407
2.R Rothman et al. Does this child have acute otitis media? JAMA. 2003 Sep 24;290(12):1633-40
3.Wood JM et al. Acute otitis media in young children Diagnosis and management. Medicine Today 2014; 15(7): 12-2
4.Pei-JuTing et al. Epidemiology of acute otitis media among young children: A multiple database study in Taiwan. Journal of Microbiology, Immunology and Infection Volume 45, Issue 6, December 2012, Pages 453-458