Research ArticleOriginal Article
Open Access

Predictors of tympanostomy tube extrusion time in otitis media with effusion

Abdulaziz K. Alaraifi, Abdullah S. Alkhaldi, Ibrahim S. Ababtain and Fahad A. Alsaab
Saudi Medical Journal July 2022, 43 (7) 730-734; DOI: https://doi.org/10.15537/smj.2022.43.7.20220323

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  • Table 1

    - Tympanostomy tube extrusion time in all operated ears (N=258).

    Variablesn (%)
    TT extrusion time, mean±SD13.96±6.5)
    1-6 months33 (12.8)
    7-12 months88 (34.1)
    >12 months137 (53.1)
    Tube diameter
    1.14 mm237 (91.9)
    0.76 mm21 (8.1)

    Values are presented as a number and precentage (%). TT: tympanostomy tube, SD: standard deviation

    • Table 2

      - Predictors of tympanostomy tube early extrusion.

      VariablesTT extrusion time ≤12 months (n=121)TT extrusion time >12 months (n=137)P-value
      Age
      ≤5 years86 (51.2)82 (48.8)0.059
      >5 years35 (38.9)55 (61.1)
      Gender
      Male81 (49.1)84 (50.9) 
      Female40 (43.0)53 (57.0)0.347
      BMI, mean±SD17.03±4.916.86±4.40.510
      OME
      Unilateral11 (52.4)10 (47.6)0.599
      Bilateral110 (46.4)127 (53.6)
      Concurrent adenoidectomy
      Yes73 (44.0)93 (56.0)0.206
      No48 (52.2)44 (47.8) 
      Adenoid size
      Grade 136 (46.8)41 (53.2)0.21
      Grade 253 (57.0)40 (43.0)
      Grade 332 (36.4)56 (63.6)
      Tympanometry
      Type B114 (46.9)129 (53.1)0.946
      Type C7 (46.7)8 (53.3)
      MEE
      Negative12 (60.0)8 (40.0)0.474
      Serous54 (45.8)64 (54.2)
      Thick55 (45.8)65 (54.2)
      Tube diameter
      1.14104 (43.9)133 (56.1)0.01*
      0.7617 (81.0)4 (19.0)

      • Values are presented as a number and precentage (%).

      • ↵* Significant at p<0.05 level, TT: tympanostomy tube, BMI: body mass index, OME: otitis media with effusion, MEE: middle ear effusion, SD: standard deviation

    • Table 3

      - Predictors of early tympanostomy tube extrusion in logistic regression analysis.

      VariablesOdd ratioP-value95% LCI95% UCI
      Small tube diameter5.1440.006*1.60216.519
      Age (≤5 years)1.5960.0950.9222.763
      Male gender1.3770.2450.8032.360
      Recurrent AOM1.3450.3040.7642.368
      Concurrent adenoidectomy0.7610.5360.3201.808
      Adenoid hypertrophy1.0640.8160.6301.797
      Tympanometry type B0.6170.2700.2621.454
      Absence of MEE1.0750.7360.7081.631

      • ↵* Significant at p<0.05 level. LCI: lower confidence interval, UCI: upper confidence interval, AOM: acute otitis media, MEE: middle ear effusion

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