Table 4.
Univariate and Multivariable Logistic Regression Analyses of Variables and Associations With Recurrent Laryngeal Nerve Injury Among All Patients, and Among Patients With Malignancy.
| All patients—RLN injury analysis | |||||
|---|---|---|---|---|---|
| Variable | Comparison | Univariate OR (95% CI) | P-value | Multivariable OR (95% CI) | P-value |
| Age (per 5 year increase) | 1.07 (1.04, 1.10) | <.001 | 1.07 (1.03, 1.10) | <.001 | |
| BMI (per 5 kg/m2 increase) | 1.00 (.95, 1.06) | .982 | .99 (.93, 1.05) | .748 | |
| Sex | Male vs. female | .99 (.80, 1.21) | .894 | .91 (.74, 1.11) | .350 |
| ASA class | 3/4 vs. 1/2 | 1.25 (1.05, 1.48) | .012 | 1.16 (.95, 1.40) | .140 |
| IONM | Yes vs. no | .85 (.71, 1.01) | .058 | .83 (.69, .98) | .033 |
| Use of VSD | Yes vs. no | 1.01 (.84, 1.21) | .925 | 1.07 (.89, 1.29) | .462 |
| Malignancy | Yes vs. no | 1.23 (1.03, 1.47) | .021 | 1.22 (1.02, 1.46) | .034 |
| Central neck dissection | Yes vs. no | 1.24 (1.03, 1.50) | .023 | 1.29 (1.06, 1.56) | .010 |
| Malignancy patients—RLN injury analysis | |||||
| Variable | Comparison | UnivariateOR (95% CI) | P-value | MultivariableOR (95% CI) | P-value |
| Age (per 5 year increase) | 1.07 (1.04, 1.11) | <.001 | 1.07 (1.03, 1.11) | <.001 | |
| BMI (per 5 kg/m2 increase) | 1.01 (.94, 1.08) | .752 | .99 (.92, 1.07) | .791 | |
| Sex | Male vs. female | .98 (.77, 1.25) | .891 | .89 (.70, 1.14) | .375 |
| ASA class | 3/4 vs. 1/2 | 1.38 (1.12, 1.71) | .002 | 1.25 (.99, 1.58) | .065 |
| IONM | Yes vs. no | .82 (.67, 1.01) | .067 | .76 (.62, .94) | .012 |
| Use of VSD | Yes vs. no | 1.18 (.94, 1.46) | .150 | 1.26 (1.01, 1.58) | .043 |
| Central neck dissection | Yes vs. no | 1.40 (1.13, 1.73) | .002 | 1.56 (1.26, 1.95) | <.001 |
Abbreviations: ASAs, American Society of Anesthesiologists; BMI, body mass index; IONM, intraoperative nerve monitoring; OR, odds ratio; RLN, recurrent laryngeal nerve injury; VSD, vessel sealant device.