Table 2.

Primary tumor response for patients in CCRT group vs. chemotherapy alone group

Primary tumor response	CCRT group (n = 55)	Chemotherapy group (n = 86)	P
CR	7 (12.7%)	2 (2.3%)
PR	34 (61.8%)	37 (43.0%)
SD	11 (20.0%)	30 (34.9%)
PD	3 (5.5%)	17 (19.8%)
ORR (CR + PR)	41 (74.5%)	39 (45.3%)	0.001
DCR (CR + PR + SD)	52 (94.5%)	69 (80.2%)	0.024

Abbreviations: CCRT concurrent chemoradiotherapy, CR complete response, PR partial response, SD stable disease, PD progressive disease, ORR objective response rate, DCR disease control rate