Table 5.

Lung Cancer Histology Among Veterans and Non-Veterans

	Non-Veterans a		Veterans a		p Value
	N	%	N	%
Total	2,766	100.0	98	100.0
Small cell	222	8.0	11	11.2	.50 b
Other	66	2.4	2	2.0
Non-small cell	2,072	74.9	70	71.4	.36 c
Adenocarcinoma	1,202	43.5	37	37.8
Squamous	315	11.4	15	15.3
Other/Unspecified	555	19.9	18	18.3

Notes: ^a Numbers may not add to totals and percents to 100 because of missing data; 385 non-Veterans and 14 Veterans were missing data.

^b Chi-square test for differences in cell type between Veterans and non-Veterans

^c Chi-square test for differences in cell subtype (among non-small cell cancer) between Veterans and non-Veterans.