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Phonation efficiency index in healthy subjects, patients with vocal cord paralysis, and patients who underwent reconstruction of the recurrent laryngeal nerve (9).
| Healthy subjects | Patients with VCP | Patients with RLN reconstruction | ||
|---|---|---|---|---|
| Male | No. of patients | 8 | 9 | 16 |
| PEI | 6.79±2.52 | 3.24±1.49 | 5.53±2.72 | |
| Female | No. of patients | 26 | 18 | 72 |
| PEI | 6.73±2.04 | 3.29±1.48 | 7.59±2.82 | |
PEI: phonation efficiency index; values are mean ± SD (seconds/L). VCP, vocal cord paralysis; RLN, recurrent laryngeal nerve.
