Preoperative PET/CT ¹⁸F-FDG Standardized Uptake by Lymph Nodes as a Significant Prognostic Factor in Patients with Colorectal Cancer

Table 4

Regression analyses of prognostic factors for recurrence-free survival in patients with CRC.

Variable	Test for recurrence-free survival	Univariate analysis			Multivariate analysis
		Hazard ratio	95% CI		Hazard ratio	95% CI
Age	>60 versus ≤60	0.657	0.262–1.647	0.371
Sex	Male versus female	0.463	0.187–1.149	0.097
Tumour location	Rectum versus colon	0.448	0.176–1.142	0.093
Tumour size	>4.25 versus ≤4.25	2.336	0.885–6.172	0.087
T Stage	3/4 versus 1/2	2.018	0.987–4.123	0.054
Lymph node metastasis	Yes versus No	1.182	0.463–3.021	0.727
Lymphovascular invasion	Yes versus No	2.396	0.842–6.815	0.101
Tumour grade	Poor versus well/Moderate	3.143	1.272–7.767	0.013	3.837	1.501–9.81	0.005
Adjuvant treatment	Yes versus No	1.803	0.596–5.449	0.296
SUVTumor	>10.65 versus ≤10.65	1.613	0.601–4.334	0.343
SUVLN	>1.15 versus ≤1.15	4.538	1.317–15.642	0.017	10.107	2.832–36.064	<0.0001