Table 2 Univariate analysis of potential influencing factors for UR
Variables | Non-UR | UR | P-value |
|---|---|---|---|
Group (n, %) | Group (n, %) | ||
Gender | 0.1786 | ||
Male | 186 (52.4) | 41 (62.1) | |
Female | 169 (47.6) | 25 (37.9) | |
Age | 0.7737 | ||
< 60 | 111 (31.3) | 22 (33.3) | |
≥ 60 | 244 (68.7) | 44 (66.7) | |
Smoking | 0.6661 | ||
No | 318 (89.6) | 58 (87.9) | |
Yes | 37 (10.4) | 8 (12.1) | |
Alcohol | 0.6232 | ||
No | 328 (92.4) | 60 (90.9) | |
Yes | 27 (7.6) | 6 (9.1) | |
BMI (kg/m2) | 0.5823 | ||
≤ 25 | 215 (60.6) | 43 (65.2) | |
> 25 | 140 (39.4) | 23 (34.8) | |
Hypertension | 0.0367* | ||
No | 262 (73.8) | 40 (60.6) | |
Yes | 93 (26.2) | 26 (39.4) | |
Diabetes | 0.0128* | ||
No | 318 (89.6) | 51 (77.3) | |
Yes | 37 (10.4) | 15 (22.7) | |
Preoperative anemia | |||
No | 292 (82.3) | 54 (81.8) | > 0.9999 |
Yes | 63 (17.7) | 12 (18.2) | |
Tumor size | 0.6821 | ||
T1–T2 | 313 | 57 | |
T3–T4 | 42 | 9 | |
Cervical node metastasis | 0.2457 | ||
N0 | 296 (83.4) | 50 (75.8) | |
N1 | 35 (9.6) | 11 (16.7) | |
N2 | 24(7.0) | 5 (7.5) | |
Type of reconstruction | 0.0002* | ||
Local flap | 283 (79.7) | 37 (56.1) | |
Pedicled flap | 38 (10.7) | 17 (25.8) | |
Free flap | 34 (9.6) | 12 (18.1) | |
Cancer subsites | 0.0390* | ||
Oral cavity | 304 | 61 | |
Oropharynx | 9 | 4 | |
Larynx | 7 | 0 | |
Salivary Gland | 35 | 1 |