Table 2. Overall survival in all patients with non-small cell lung cancer.

Histology	Patients with non-small cell lung cancer						p
	Number of patients		5-year survival rate	Average survival rate (months)	95% CI (months)
	n	%	Mean±SD	Mean±SD	Upper limit	Lower limit
Squamous cell carcinoma	61	31.1	42.6±6.3	80.1±8.7	63.023	97.257	0.292
Adenocarcinoma	66	41.8	54.3±6.2	97.2±8.6	80.450	114.040
Large cell carcinoma	64	42.2	59.4±6.1	94.5±8.3	78.165	110.889
Total	191	100	52.3±3.6	91.4±5.0	81.496	101.214
SD: Standard deviation.