Table 1:
Univariate logistic regression analyses for predicting 1p/19q codeletion among the training dataset
| Predictor | Ratio | Odds Ratio (95% CI) | P Value |
|---|---|---|---|
| Maximum diameter (cm) | 1st Quartile: 3rd quartile | 1.33 (0.70–2.49) | .381 |
| Margins | Irregular: sharp | 1.04 (0.47–2.33) | .917 |
| Texture | Homogeneous (<75%): homogeneous (>75%) | 12.33 (4.66–31.58) | <.001a |
| Peritumoral edema | Yes: no | 1.42 (0.62–3.23) | .973 |
| Hydrocephalus | No: yes | 2.32 (0.88–6.11) | .089 |
| Midline shift (cm)b | 1st Quartile: 3rd quartile | 4.27 (1.49–12.23) | .027a |
| Enhancement | Yes: no | 1.28 (0.57–2.86) | .555 |
| Necrosis | Yes: no | 2.18 (0.61–7.69) | .228 |
| T2* blooming | Yes: no | 6.92 (2.04–23.49) | .002a |
| Cortical infiltration | Yes: no | 2.02 (0.67–6.10) | .212 |
| Cyst | No: yes | 1.18 (0.48–2.91) | .715 |
| T2 FLAIR mismatch signc | No: yes | 22.50 (6.26–∞) | <.001a |
| Gliomatosis | Yes: no | 1.13 (0.18–7.08) | .896 |
| Primary lobe | Frontal: nonfrontal | 5.68 (2.08–15.44) | .001a |
| Age | 3rd Quartile: 1st quartile | 3.38 (1.71–6.71) | <.001a |
| Sex | Female: male | 1.55 (0.69–3.50) | .283 |
a
Significant.
b
Analyzed as a restricted cubic spline function of the predictor.
c
Median unbiased estimate derived with exact logistic regression.