Table 2.
Demographic characteristics of patients with different severity of objective high-pitched voice impairment (HPVI).
| Total 775 patients | Fmax decrease | p value | |||
|---|---|---|---|---|---|
| <20% | 20-40% | 40-60% | >60% | ||
| Case number | 333 (42.3%) | 270 (34.8%) | 130 (16.8%) | 42 (5.4%) | |
| Age ± SD | 50.9 ± 12.8 | 51.8 ± 13.1 | 53.4 ± 12.8 | 55.6 ± 13.3 | 0.073 |
| Gender (%) | 0.139 | ||||
| male | 48 (14.4%) | 50 (18.5%) | 27 (20.8%) | 6 (14.3%) | |
| female | 285 (85.6%) | 220 (81.5%) | 103 (79.2%) | 36 (85.7%) | |
| Surgical extent (%) | 0.002 | ||||
| unilateral | 105 (31.5%) | 70 (25.9%) | 26 (20.0%) | 5 (11.9%) | |
| bilateral | 228 (68.5%) | 200 (74.1%) | 104 (80.0%) | 37 (88.1%) | |
| CND | <0.001 | ||||
| without | 294 (88.3%) | 231 (85.6%) | 101 (77.7%) | 36 (85.7%) | |
| with | 39 (11.7%) | 39 (14.4%) | 29 (22.3%) | 6 (14.3%) | |
| Pathology | 0.547 | ||||
| benign | 228 (68.5%) | 183 (67.8%) | 80 (61.5%) | 30 (71.4%) | |
| malignant | 105 (31.5%) | 87 (32.2%) | 50 (38.5%) | 12 (28.6%) | |
| Patients with subjective HPVI | 29 (8.7%) | 74 (27.4%) | 73 (56.2%) | 35 (83.3%) | <0.001 |
SD, standard deviation; CND, Central neck dissection.