Table 2.
Univariate/multivariate Cox regression analysis of factors associated with mortality
| Univariate | Multivariate | |||||
|---|---|---|---|---|---|---|
| Characteristic | HR | 95% CI | P value | HR | 95% CI | P value |
| ADC 90th percentile | ||||||
| <1.917 | 2.72 | 1.01–7.35 | 0.048 | 2.69 | 0.98–7.34 | 0.054 |
| >1.917 | 1.00 | - | - | 1.00 | - | - |
| MRI volume | 1.00 | 0.996–1.004 | 0.84 | |||
| PET SUV max (baseline) | 0.99 | 0.93–1.05 | 0.72 | |||
| Age | ||||||
| <50 | 1.00 | - | - | |||
| >50 | 0.74 | 0.32–1.70 | 0.48 | |||
| Histology | ||||||
| Squamous | 1.00 | - | - | |||
| Adenocarcinoma/Other | 0.80 | 0.32–2.05 | 0.65 | |||
| FIGO Stage | ||||||
| I | 1.00 | - | - | |||
| II | 0.98 | 0.31–3.11 | 0.97 | |||
| III-IV | 2.77 | 0.96–8.01 | 0.06 | |||
| Tumor differentiation | ||||||
| Well-moderate | 1.00 | - | - | |||
| Poor | 1.15 | 0.46–2.84 | 0.77 | |||
| Lymph Node Positive | ||||||
| No | 1.00 | - | - | |||
| Yes | 1.74 | 0.68–4.41 | 0.25 | |||
| Lymph Node Type | ||||||
| No lymph nodes | 1.00 | - | - | 1.00 | - | - |
| Pelvic | 1.44 | 0.54–3.83 | 0.47 | 1.20 | 0.45–3.23 | 0.72 |
| Para-aortic | 3.58 | 1.08–11.82 | 0.037 | 3.29 | 0.99–10.89 | 0.051 |
Abbreviations: 3D=3-dimensional; ADC=apparent diffusion coefficient; FIGO=International Federation of Gynecology and Obstetrics; MRI=magnetic resonance imaging; PET SUV=positron emission tomography standardized uptake value.