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Table 3.2.1 continuedAuthorYearReferenceCountryStudydesignPatientpopulationInterventionControlMRC MulticentreOtitis Media StudyGroup2004[79]United KingdomRCT n=68>20 dB hearing lossTympanograms showing B or C2curves at 2 consecutive occasions,separated by 3 monthsVT: n=15VT + Ad: n=17Controls: n=36Paradise et al2003[85]USARCT n=429Age: 3 months orIntermittent bilateral SOM>67% of 6 monthsUnilateral SOM >135 daysIntermittent unilateral SOM>67% of 9 monthsThe children were part of a cohortof 6 350 healthy children, examinedmonthly with pneumatic otoscopyand tympanometry up to 3 yearsNon randomised control: n=241,not fulfilling criteriaAd when nasal obstructionBilateral SOM:Early VT: n=40Late VT: n=33Bilateral intermittent SOM:Early VT: n=41Late VT: n=35Unilateral SOM:Early VT: n=34Late VT: n=31Unilateral intermittent SOM:Early VT: n=92Late VT: n=97Early VT: within 6 weeksLate VT: after 6 months forbilateral or 9 months forunilateral SOM110Rörbehandling vid inflammation i mellanörat