Table 2

Squamous cell lung carcinoma: predicative significance of each parameter

Tumor cell staining	Covariates									P
Tumor cell staining		Death from other causes	Survivors	Relapses	Survival (mo)	No. of patients				P
Differentiation^a
+	16	31	30	39.90 ± 30.50	77	0.30
−	13	17	25	24.97 ± 22.16	55	0.30
Bcl-2^b
+	13	12	14	30.02 ± 28.04	39	0.99
−	16	35	41	34.61 ± 27.86	92	0.99
ABH antigens^b
+	16	27	25	37.41 ± 29.55	68	0.074
−	13	21	30	29.71 ± 26.40	64	0.074
p53^b
+	19	34	38	34.73 ± 28.45	91	0.66
−	10	14	17	31.34 ± 27.93	41	0.66
Pan-Ras^b
+	2	8	6	39.28 ± 26.78	16	0.38
−	27	40	49	32.91 ± 28.45	116	0.38
C-erbB2^b
+	7	12	16	32.45 ± 27.32	35	0.83
−	22	36	39	34.12 ± 28.67	97	0.83
Blood types
O	9	24	22	38.71 ± 26.89	55	0.20
B	4	6	8	37.22 ± 29.97	18	0.74
A	15	14	25	25.23 ± 26.46	54	0.08
AB	1	4	0	56.80 ± 34.79	5	0.056
Sex
Male	28	53	45	33.70 ± 28.4	126	0.66
Female	1	3	2	34.00 ± 27.7	6	0.66

^a Tumor histological subtyping: +, well-differentiated; −, moderately or poorly differentiated.
^b Immunohistochemistry: +, positive tumor staining; −, negative tumor staining.
^c Univariate Wilcoxon rank test pooled over tumor stage.