Table 4 Predictors of grade ≥2 late observer-rated dysphagia (logistic regression)
Variable (mean doses in Gy) | Univariate | Multivariate | ||
|---|---|---|---|---|
Odds ratio (95% CI) | P value | Odds ratio (95% CI) | P value | |
Contralateral submandibular gland dose | 1.06 (1.02–1.10) | 0.004 | 1.03 (0.98–1.09) | 0.29 |
T4 tumor stage | 5.99 (1.77–24.18) | 0.006 | 4.60 (1.17–21.16) | 0.04 |
Superior pharyngeal constrictor dose | 1.27 (1.09–1.56) | 0.009 | 1.15 (0.98–1.42) | 0.12 |
Oral cavity dose | 1.08 (1.01–1.16) | 0.03 | 1.02 (0.94–1.12) | 0.62 |
Bilateral nodal involvement | 3.26 (1.02–11.18) | 0.05 | 1.45 (0.28–7.56) | 0.65 |
Glottic/supraglottic larynx dose | 1.06 (1.00–1.12) | 0.06 | ||
Parotid glands mean dose | 1.06 (0.99–1.15) | 0.11 | ||
Inferior pharyngeal constrictor dose | 1.04 (0.99–1.09) | 0.13 | ||
Middle pharyngeal constrictor dose | 1.08 (0.98–1.21) | 0.15 | ||
Cricopharyngeal muscle dose | 1.02 (0.98–1.07) | 0.35 | ||
Age | 1.02 (0.95–1.10) | 0.56 | ||
Esophageal inlet muscles dose | 1.01 (0.97–1.05) | 0.63 | ||