Table 1. Characteristics of patients.

Characteristics	Number (%)
Median age (range)	60 (30–78)
Gender
Male	251 (68.8)
Female	114 (31.2)
Race (% of patients)	Asian (100)
Smoking status
Smokers	196 (53.7)
Non-smokers	169 (46.3)
Performance status
0	132 (36.2)
1	233 (63.8)
Disease stage
IIIb	121 (33.2)
IV	244 (66.8)
Histological type
Squamous carcinoma	145 (39.7)
Adenocarcinoma	191 (52.3)
NOS-NSCLC	29 (7.9)
Chemotherapy regimens
NP	67
NC	30
GP	171
GC	20
T/P+P	27
T/P+C	25
Non-platinum	25

^*NP =  vinorelbine+cisplatin;

NC =  vinorelbine+carboplatin;

GP =  gemcitabine+cisplatin;

GC =  gemcitabine+carboplatin;

T/P+P =  docetaxel/paclitaxel+cisplatin;

T/P+C =  docetaxel/paclitaxel+carboplatin.