Table 3.
Demographic characteristics of patients with and without subjective high-pitched voice impairment (HPVI).
| Total 775 patients | Without subjective HPVI | With subjective HPVI | p value |
|---|---|---|---|
| Case number | 564 (72.8%) | 211 (27.2%) | |
| Age ± SD | 51.5 ± 12.7 | 52.9 ± 11.6 | 0.163 |
| Gender (%) | 0.022 | ||
| male | 106 (18.8%) | 25 (11.8%) | |
| female | 458 (81.2%) | 186 (88.2%) | |
| Surgical extent (%) | 0.003 | ||
| unilateral | 166 (29.4%) | 40 (19.0%) | |
| bilateral | 398 (70.6%) | 171 (81.0%) | |
| CND | <0.001 | ||
| without | 504 (89.4%) | 158 (74.9%) | |
| with | 60 (10.6%) | 53 (25.1%) | |
| Pathology | 0.315 | ||
| benign | 385 (68.3%) | 136 (64.5%) | |
| malignant | 179 (31.7%) | 75 (35.5%) |
SD, standard deviation; CND, central neck dissection.