Table 3 GLM summary including odds ratios (OR) and 95% confidence interval (CI) for the prediction of xerostomia
|  | DVH Model | CT Model | MR Model | Clinical + DVH + CT + MR Model | ||||
|---|---|---|---|---|---|---|---|---|
β | OR (95% CI) | β | OR (95% CI) | β | OR (95% CI) | β | OR (95% CI) | |
Intercept | −2.58 | – | −9.21 |  | −0.31 |  | −6.54 |  |
Age | – | – | – | – | – | – | −0.69 | 0.50 (0.47–0.54) |
Gender | – | – | – | – | – | – | 1.09 | 2.97 (1.93–4.01) |
Tumor Volume | – | – | – | – | – | – | 0.45 | 1.56 (1.56–1.58) |
cPG D40 | 1.51 | 4.57 (4.56–4.58) | – | – | – | – | 1.03 | 2.79 (2.78–2.79) |
cSG D60 | 0.60 | 1.81 (1.80–1.82) | – | – | – | – | 0.63 | 1.86 (1.86–1.88) |
CT cSG wavelet LLL GLSZM Gray Level Non Uniformity Normalized | – | – | 1.00 | 2.73 (−11.3–16.7) | – | – | 0.83 | 2.29 (−14.4–19.0) |
CT iPG original GLSZM Low Gray Level Zone Emphasis | – | – | −0.64 | 0.53 (−9.0–10.1) | – | – | − 0.61 | 0.55 (−10.4–11.5) |
CT iSG wavelet HLL GLCM Inverse Variance | – | – | 0.57 | 1.77 (−17.4–20.9) | – | – | 0.36 | 1.44 (−21.9–24.8) |
CT cPG wavelet LHL Total Energy | – | – | 0.42 | 1.53 (1.52–1.54) | – | – | 0.31 | 1.36 (1.35–1.37) |
CT iSG wavelet HLL GLRLM Long Run High Gray Level Emphasis | – | – | −0.65 | 0.52 (0.51–0.53) | – | – | −0.69 | 0.50 (0.49–0.51) |
CT iPG original first order 10 Percentile | – | – | −0.69 | 0.50 (0.49–0.51) | – | – | −0.38 | 0.69 (0.68–0.70) |
CT cPG wavelet LHL GLRLM Long Run High Gray Level Emphasis | – | – | 0.43 | 1.54 (1.53–1.55) | – | – | 0.49 | 1.63 (1.62–1.64) |
MR cPG shape Least Axis Length | – | – | – | – | 0.98 | 2.66 (2.59–2.73) | 0.84 | 2.32 (2.23–2.42) |
MR iSG wavelet LHH GLSZM Gray Level Non Uniformity Normalized | – | – | – | – | −0.65 | 0.52 (−26.2–27.2) | −0.92 | 0.40 (−33.8–34.6) |
MR iSG wavelet LHH GLSZM Small Area High Gray Level Emphasis | – | – | – | – | 1.17 | 3.22 (3.20–3.23) | 1.28 | 3.59 (3.57–3.61) |
MR iPG wavelet LHL GLSZM Small Area High Gray Level Emphasis | – | – | – | – | −0.69 | 0.50 (0.48–0.52) | −0.72 | 0.49 (0.47–0.51) |
MR iSG wavelet LLH GLSZM Size Zone Non Uniformity Normalized | – | – | – | – | −0.36 | 0.70 (−9.75–11.2) | − 0.43 | 0.65 (−12.3–13.6) |