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Table 2: 
Representative spectroscopy points and prognostic performance
Variable Value Overall Patients P Patients Treated with Chemoradiotherapy Conservative-Support Treatment P
No. Hazard Ratio (95% CI) No. Hazard Ratio (95% CI) P No. Hazard Ratio (95% CI)
STE^a 
    NI_0.98 <0.1024 133 0.568 (0.391–0.826) .003 72 0.424 (0.231–0.778) .006 38 0.575 (0.323–1.026) NS
>0.1024 47 1.000 18 1.000 20 1.000 
    NI_3.67 <0.0473 71 1.992 (1.421–2.792) <.001 29 2.080 (1.238–3.495) .006 28 2.038 (1.122–3.699) .018
>0.0473 109 1.000 61 1.000 30 1.000 
STE^b 
    I_3.67/I_0.98 <0.5510 76 1.866 (1.329–2.621) <.001 34 2.673 (1.582–4.517) <.001 29 1.960 (1.071–3.586) .029
>0.5510 104 1.000 56 1.000 29 1.000 
LTE^a 
    NI_0.98 <0.0267 103 0.426 (0.304–0.597) <.001 57 0.417 (0.249–0.698) .001 38 0.472 (0.259–0.860) .014
>0.0267 79 1.000 32 1.000 21 1.000 
    NI_1.25 <0.0098 59 0.400 (0.272–0.590) <.001 39 0.434 (0.252–0.748) .003 10 0.412 (0.187–0.905) .027
>0.0098 123 1.000 50 1.000 49 1.000 


a Intensity values of points normalized to unit-length: NI_x.xx


b Ratio between intensity signals of points: I_x.xx/I_x.xx.