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Table 4 Multivariate analysis of outcome at 3 months and 1 year (logistic regression)

From: Monitoring tumour response during chemo-radiotherapy: a parametric method using FDG-PET/CT images in patients with oesophageal cancer

Endpoint Covariates Odds ratio (95% CI) p Correctly classified AUC ROC
3 months Age 0.94 (0.90 to 0.98) 0.001 76% 0.84
Ln(TV1) 2.93 (1.31 to 6.60) 0.009  
Ln(1 + Vg) 2.23 (1.01 to 4.96) 0.047  
1 year Age 0.95 (0.92 to 0.99) 0.006 78% 0.89
N+ 20.9 (2.24 to 195) 0.008  
  Ln(Vr) 3.08 (1.12 to 8.46) 0.03   
  1. Natural logarithm (Ln) transformations were used to obtain Gaussian distributions for quantitative variables. 95% CL, 95% confidence limits; AUC ROC, area under receiver operating characteristics curve.