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Table 1 Clinical measurements

From: Oral steroids for the resolution of otitis media with effusion (OME) in children (OSTRICH): study protocol for a randomised controlled trial

Measurement Outcome
Audiometry Hearing in each ear by pure tone audiometry, ear-specific insert visual reinforcement audiometry (VRA) or ear-specific play audiometry) or in both ears together by sound-field VRA or sound-field performance/play audiometry)
Tympanometry  (using calibrated standardised tympanometers and modified Jerger classification Type B and C considered abnormal) Presence of middle ear effusion in each ear
Otoscopy Appearance of tympanic membrane