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Table 3.2.1 continuedAuthorYearReferenceCountryStudydesignPatientpopulationInterventionControlMaw et al1994[23]United KingdomRCT n=222Age: 3–9 yearsBilateral SOM >3 months(otoscopy), HL>25 dB at ≥1frequency, tympanometrynot showing type AAd/ADTE: n=139No Ad: n=83All subjects had unilateralVT randomised betweenearsDempster et al1993[81]United KingdomRCT n=78Age: 4–9 yearsBilateral SOM >3 months(tympanometry and otoscopy)PTA (0.5, 1.2 kHz) >25 dBAd: n=37No Ad: n=35All subjects had unilateralVT randomised betweenearsNo further surgery withinthe next 12 monthsJohnston et al2004[83]USARCT n=429Age: 3 monthsor unilateral SOM >135 days(otoscopy, tympanometry)Early VT (within 6 weeks):n=147Late VT (after 6–9 months):n=134Ad when nasal obstruction108Rörbehandling vid inflammation i mellanörat

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