- Predictors of tympanostomy tube early extrusion.
| Variables | TT extrusion time ≤12 months (n=121) | TT extrusion time >12 months (n=137) | P-value |
|---|---|---|---|
| Age | |||
| ≤5 years | 86 (51.2) | 82 (48.8) | 0.059 |
| >5 years | 35 (38.9) | 55 (61.1) | |
| Gender | |||
| Male | 81 (49.1) | 84 (50.9) | |
| Female | 40 (43.0) | 53 (57.0) | 0.347 |
| BMI, mean±SD | 17.03±4.9 | 16.86±4.4 | 0.510 |
| OME | |||
| Unilateral | 11 (52.4) | 10 (47.6) | 0.599 |
| Bilateral | 110 (46.4) | 127 (53.6) | |
| Concurrent adenoidectomy | |||
| Yes | 73 (44.0) | 93 (56.0) | 0.206 |
| No | 48 (52.2) | 44 (47.8) | |
| Adenoid size | |||
| Grade 1 | 36 (46.8) | 41 (53.2) | 0.21 |
| Grade 2 | 53 (57.0) | 40 (43.0) | |
| Grade 3 | 32 (36.4) | 56 (63.6) | |
| Tympanometry | |||
| Type B | 114 (46.9) | 129 (53.1) | 0.946 |
| Type C | 7 (46.7) | 8 (53.3) | |
| MEE | |||
| Negative | 12 (60.0) | 8 (40.0) | 0.474 |
| Serous | 54 (45.8) | 64 (54.2) | |
| Thick | 55 (45.8) | 65 (54.2) | |
| Tube diameter | |||
| 1.14 | 104 (43.9) | 133 (56.1) | 0.01* |
| 0.76 | 17 (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