Table 1.

Relation of ERCC1 Expression with Demographic Characteristics of the Studied Group

		ERCC1 Expression
		Low	High	p-value
Age (years)	≤ 55	27 (54.0%)	23 (46.0%)	0.974
	> 55	22 (53.7%)	19 (46.3%)
Sex	Male	25 (49.0%)	26 (51.0%)	0.297
	Female	24 (60.0%)	16 (40.0%)
Residence	Shobra	13 (61.9%)	8 (38.1%)	0.556
	Helwan	10 (45.5%)	12 (54.5%)
	Others	26 (54.2%)	22 (45.8%)
Smoking	Non- or Ex-smoker	30 (58.8%)	21 (41.2%)	0.282
	Current Smoker	19 (47.5%)	21 (52.5%)
Pathology	Epithelioid	44 (57.1%)	33 (42.9%)	0.139
	Sarcomatoid/biphasic	5 (35.7%)	9 (64.3%)
Treatment Protocol	GEM	20 (55.6%)	16 (44.4%)	0.791
	Alimta	29 (52.7%)	26 (47.3%)
Response	Regressive	24 (68.6%)	11 (31.4%)	0.019
	Progressive	13 (36.1%)	23 (63.9%)
	Stable	12 (60.0%)	8 (40.0%)