Table 2.

Influence of potential prognostic factors on overall survival (OS) and disease free survival (DFS)

Prognostic factor	OS	DFS
Age	ns	ns
Gender	ns	ns
WHO PS	ns	ns
Tumour grade	ns	ns
cTumour stagea	ns	ns
cNodal stagea	ns	ns
TRG	ns	ns
TRG prognostic group	ns	ns
pTumour staged	ns	ns
pNodal staged	p = 0.005	p = 0.039
pCRf
Adjuvant chemotherapyg	ns	ns
5-6 vs. ≤4 cycles*	p = 0.009	p = 0.012

TRG = tumour regression grade23; WHO PS = WHO performance status

^aaccording the AJCC, 7th edition²²

^f pathologic complete response

^gchemotherapy

^*calculated for 36 patients with indication for adjuvant chemotherapy; ns = not specific (p > 0.05).