Evaluation of a Bladder Cancer Cluster in a Population of Criminal Investigators with the Bureau of Alcohol, Tobacco, Firearms and Explosives—Part 2: The Association of Cancer Risk and Fire Scene Investigation

Table 3

Distribution of fire scene work history parameters among cases and controls.

	Cases (N = 7)		Controls (N = 1525)
	𝑁	%	𝑁	%
Fire scene exposure days
0 days	1	14%	73	4.8%
1–199 days	1	14%	1270	83.3%
200 or more days	5	71%	182	11.9%
Fire scene exposure years
0 years	1	14%	208	13.6%
1–9 years	3	43%	785	51.5%
10 or more years	3	43%	532	34.9%
Any special assignment* years
0 years	1	14%	1034	67.8%
1–4 years	3	43%	179	11.7%
5 or more years	3	43%	312	20.5%
NRT years
0 years	3	43%	1329	87.2%
1–4 years	2	28%	83	5.4%
5 or more years	2	28%	113	7.4%
DRT years
0 years	4	57%	1434	94.0%
1–4 years	1	14%	39	2.6%
5 or more years	2	28%	52	3.4%
Arson task force years
0 years	3	43%	1320	86.6%
1–4 years	4	57%	109	7.1%
5 or more years	0	0%	96	6.3%
CFI years
0 years	3	43%	1440	94.4%
1–4 years	2	28%	20	1.3%
5 or more years	2	28%	65	4.3%
CES years
0 years	5	71%	1297	85.1%
1–4 years	0	0%	54	3.5%
5 or more years	2	28%	174	11.4%

∗“Any special assignment” is a special assignment summary parameter designating the holding of any one or more of the five individual special assignments combined.