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Table 3.2.3.1 continuedAuthorYearReferenceCountryStudydesignPatientpopulationInterventionControlDempster et al1993[81]United KingdomRCT n=78Age: 4–9 yearsBilateral SOM >3 months(tympanometry andotoscopy)PTA ≥25 dB (0.5,1.2 kHz)Ad: n=37no Ad: n=35All had unilateral VTNo further surgerywithin next 12 monthsGates et al1989[77]USARCT n=491Age: 4–8 yearsUnilateral (22%) orbilateral (78%) SOM>3 monthsMean hearing level(worst ear):26.1–37.3 dBMyringotomy: n=107VT: n=129Ad + myringotomy: n=130Ad + VT: n=125Ad = Adenoidectomy; ADTE = Adenotonsillectomy; HL = Hearing level;ns = Not significant; PTA = Pure tone average; RCT = Randomised controlled trial;SOM = Secretory otitis media; VT = Ventilation tube122Rörbehandling vid inflammation i mellanörat

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