. 2015 Sep 6;182(7):624–632. doi: 10.1093/aje/kwv081

Table 1.

General and Disease Characteristics of Cases With Hodgkin Lymphoma and Controls, Scandinavian Lymphoma Etiology Study, 1999–2002

Characteristic	No. of Control Subjects (n = 3,187)	Total No. of HL Cases^a (n = 585)	No. With Nodular Sclerosis HL (n = 409)	No. With Mixed-Cellularity HL (n = 102)	No. of Other and Unclassified HL (n = 74)	No. With EBV-Positive HL (n = 142)	No. With EBV-Negative HL (n = 356)
Age, years
18–34	312	277	211	41	25	58	182
35–54	861	171	121	25	25	37	112
55–74	2,014	137	77	36	24	47	62
Sex
Male	1,767	305	202	66	37	91	166
Female	1,420	280	207	36	37	51	190
Country
Denmark	1,186	247	170	40	37	64	144
Sweden	2,001	338	239	62	37	78	212
Rheumatoid arthritis^b
No	3,073	559	395	93	71	134	345
Yes	88	21	11	7	3	8	7
Psoriasis^b
No	3,002	555	390	97	68	135	338
Yes	150	25	17	3	5	7	14
Type I diabetes^b
No	3,021	577	405	100	72	141	351
Yes	140	6	3	1	2	1	4
Allergic rhinitis^b
No	2,340	429	294	79	56	107	261
Yes	815	150	111	21	18	34	91
Childhood eczema^b
No	2,935	521	360	96	65	129	318
Yes	202	58	43	6	9	12	35
Asthma^b
No	2,896	534	376	92	66	131	325
Yes	275	50	32	10	8	11	30
IgE reactivity^b
Negative	1,714	388	264	73	51	92	238
Positive	372	122	91	19	12	29	75
IgE reactivity before treatment or in controls^b
Negative	1,714	131	87	27	17	26	86
Positive	372	53	36	11	6	12	35
IgE reactivity during treatment or in controls^b
Negative	1,714	158	117	27	14	40	98
Positive	372	41	33	5	3	9	25
Self-reported hay fever and positive IgE reactivity before treatment or in controls^b
Negative	1,834	146	97	30	19	30	96
Positive	233	37	25	8	4	8	25

Abbreviations: EBV, Epstein-Barr virus; HL, Hodgkin lymphoma; IgE, immunoglobulin E.

^a Diseases with fewer than 5 cases are not presented.

^b Numbers do not add up to the total number of participants because some questions were left unanswered or, for IgE reactivity analyses, not all participants gave a blood sample (75 cases, 1,101 controls).