Figure 5
Comparison of longitudinal change in speech evaluation scores between the ML and SGN groups. The speech perception scores were seemingly higher in the ML group than in the SGN group at postoperative 3 and 6 months, but the difference did not reach a level of significance (Mann-Whitney U-test). Nonetheless, the speech perception scores in the SGN group eventually converged with those in the ML group at 1-year evaluation. Additionally, there was no significant difference in the improvement during postoperative 1-year follow-up between ML and SGN groups.
