Table 1.
Outcomes evaluated between groups treated with bacterial cellulose and autologous fascia grafts, for treatment of perforated tympanic membrane.
| Outcomes | Type of graft |
p-Value | |
|---|---|---|---|
| BC | Fascia | ||
| N | 20 | 20 | – |
| Gender | |||
| Male | 06 (30%) | 08 (40%) | 0.5073a |
| Female | 14 (70%) | 12 (60%) | |
| Age | 38.15 ± 12.63 | 34.5 ± 10.16 | 0.3204b |
| TMP location | |||
| Right ear | 7 (35.0%) | 11(55.0%) | 0.2036a |
| Left ear | 13 (65.0%) | 9 (45.0%) | |
| TMP size | |||
| Small | 14 (70.0%) | 14 (70.0%) | 1.000a |
| Medium | 6 (30.0%) | 6 (30.0%) | |
| Surgical time (min) | 14.06 ± 5.23 | 76.50 ± 17.92 | <0.0001b* |
| TMP closure | |||
| General | 18 (90.0%) | 16 (80.0%) | 0.3758a |
| By size | |||
| Small | 14 (100%) | 13 (92.9%) | 0.6264a |
| Medium | 04 (66.7%) | 03 (50%) | 0.5582a |
| Hospital cost estimatec | |||
| Per patient | 30.00 | 388.94 | |
| Total | 600.00 | 7778.80 | <0.0001c |
| Risk and efficacy analysis | |||
| RR% | 0.5 | 0.3758a | |
| ARR | 10% | – | |
| Efficacy | 50% | ||
BC, Bacterial cellulose; TMP, Tympanic membrane perforation; RR, Relative risk; ARR, Absolute risk reduction.
Values in mean ± SD and n (%).
a
Qui-squared test.
b
Student's t test, significant if (*) p ≤ 0.05.
c
Hospital cost estimate, according to the table of costs for surgical procedures of the Brazilian Unified Health System (SUS); values in Reais (R$). Mann–Whitney test.