Figure 4

Overall survival according to: (A) treatment for all stages. 5-Fluorouracil vs 5-FU+FA: log-rank test, P=0.461; (B) treatment of stage II (pT3/4pN0); (C) treatment of stage III (pT1-4pNpos); (D) UICC stage II (pT3/4pN0), and substages IIIa (pT1/2pN1), IIIb (pT3/4pN1), and IIIc (pT1-4pN2); (E) tumour grading (G1+2 vs G3); and (F) type of resection: anterior resection (AR), abdominoperineal resection (APR), and resection type unknown (UNK). AR included nine Hartmann procedures.