Table 2.

Prevalence of occupations included in the livestock/animal dust job-exposure matrix, stratified by parent, exposure period of interest, and case/control status, 1968–2016.

Occupation title	Paternal exposure window								Maternal exposure window
	Three months preconception				Offspring birth to cancer diagnosis				Pregnancy				Offspring birth to cancer diagnosis
	Controls (N=99,849)		Cases (N=4219)		Controls (N=112,404)		Cases (N=4735)		Controls (N=88,787)		Cases (N=3914)		Controls (N=104,404)		Cases (N=4508)
	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%
All occupations in job-exposure matrix	2265	2.27	110	2.61	4128	3.67	198	4.18	1115	1.26	49	1.25	2344	2.25	92	2.04
Stud-farms	6	0.01	<5	0.02	20	0.02	<5	0.02	<5	0.00		-	14	0.01	<5	0.02
Farming, livestock	449	0.45	21	0.50	919	0.82	48	1.01	133	0.15	5	0.13	318	0.30	14	0.31
Hog slaughtering	1234	1.24	53	1.26	2184	1.94	96	2.03	373	0.42	14	0.36	741	0.71	24	0.53
Meat-product/canning plants	251	0.25	13	0.31	580	0.52	29	0.61	139	0.16	<5	0.05	361	0.35	7	0.16
Cattle slaughterhouses	58	0.06	<5	0.05	152	0.14	7	0.15	5	0.01		-	24	0.02		-
Gut-cleaning plants	82	0.08	<5	0.09	150	0.13	<5	0.06	58	0.07	<5	0.05	108	0.10	8	0.18
Poultry slaughterhouses	111	0.11	7	0.17	260	0.23	14	0.30	173	0.19	8	0.20	403	0.39	20	0.44
Other meat preparation	26	0.03	<5	0.09	68	0.06	5	0.11	26	0.03		-	59	0.06	<5	0.04
Furriers	7	0.01	<5	0.02	15	0.01	<5	0.06	21	0.02	<5	0.10	47	0.05	<5	0.09
Fur preparation	<5	0.00		-	23	0.02		-	<5	0.00	<5	0.03	28	0.03	<5	0.02
Meat products, poultry, game	146	0.15	8	0.19	389	0.35	19	0.40	55	0.06	<5	0.03	140	0.13	<5	0.04
Butcher shops, delicatessens	126	0.13	8	0.19	239	0.21	15	0.32	191	0.22	11	0.28	429	0.41	19	0.42
Veterinarians	48	0.05	<5	0.07	91	0.08	<5	0.04	76	0.09	<5	0.10	130	0.12	<5	0.09