Table 4. Independent risk factors for cerebral metastasis.
| Risk factors | Multivariate analysis | ||
|---|---|---|---|
| aOR (95% CI) | p-value | ||
| Histology | |||
| Squamous cell carcinoma | Reference | ||
| Adenocarcinoma | 2.90 (1.46–5.75) | 0.002 | |
| Adenosquamous carcinoma | 7.33 (2.87–18.73) | <0.001 | |
| Undifferentiated carcinoma | 14.37 (3.77–54.76) | <0.001 | |
| Neuroendocrine carcinoma | 21.31 (6.65–68.37) | <0.001 | |
| Clinical stage | |||
| I | Reference | ||
| II | 2.17 (0.77–6.18) | 0.145 | |
| III | 3.15 (1.16–8.58) | 0.025 | |
| IV | 4.32 (1.34–13.94) | 0.015 | |
| Missing | * | 0.997 | |
| Previous lung metastasis | |||
| No | Reference | ||
| Yes | 4.04 (1.82–8.94) | 0.001 | |
Statistically significant differences are displayed in bold (p < 0.05).
aOR, adjusted odds ratio; CI = confidence interval.
*Not available.