Table 1. Patient demographics.

Characteristic		Extended Survival	Poor Survival	p value
No. of patients		24	25
Age – years¥		65.6 ± 1.9	69.7 ± 1.4	0.0827
Male sex – no. (%)#		17 (70.8)	19 (76)	0.7536
Year of surgery – no. (%)#
	1991	0 (0)	1 (4)	0.8106
	1992	2 (8)	1 (4)
	1993	3 (13)	3 (12)
	1994	6 (25)	4 (16)
	1999	13 (54)	16 (64)
Tumour stage – no. (%)#
	1	12 (50)	15(60)	0.4203
	2	8 (33)	9 (36)
	3a	4 (17)	1 (4)
Histology – no. (%)#
	Squamous	17 (71)	14 (56)	0.7709
	Adenocarcinoma	3 (13)	4 (16)
	Large cell	2 (8)	4 (16)
	Other	2 (8)	3 (12)
Tumour Grade – no. (%)#
	Well	1 (4)	3 (12)	0.0510
	Moderate	12 (50)	5 (20)
	Poor	10 (42)	17 (68)
	Not recorded	1 (4)	0 (0)
Adjuvant Chemotherapy (%)		1 (5)	0 (0)
Radiotherapy (%)		2 (10)	2 (10)
Palliative Radiotherapy (%)		2 (10)	2 (10)
Survival – months¥		86.5 ± 8.8	8.0 ± 0.78	<0.0001

Plus-minus values are means + SEM.

^¥Unpaired T test.

^#Fischer’s Exact Test.