Table 1.

Distribution of Select Characteristics Among Hodgkin Lymphoma Cases and Controls, Boston, Massachusetts, Metropolitan Area and State of Connecticut, 1997–2000^a

	Cases (n = 497)		Controls (n = 638)		P Valueb
	%	Mean	%	Mean
Age, years
<20	6.0		4.6
20–29	26.0		25.4
30–39	31.0		28.2
40–49	18.0		18.2
50–59	8.5		8.8
60–69	5.6		7.5
≥70	4.8		7.4		0.38
Sex
Male	51.7		54.1
Female	48.3		45.9		0.43
State of residence
Massachusetts	56.9		54.9
Connecticut	43.1		45.1		0.48
Race/ethnicity
White	92.3		88.2
Black	2.8		4.4
Hispanic	2.2		3.1
Other	2.8		4.3		0.18
Body mass index, kg/m2		25.9		26.4	0.11
Regular aspirin user	13.0		18.2		0.02
Regular acetaminophen user	26.8		17.8		<0.01
Multivitamin use	45.7		41.8		0.19
Smoked ≥10 packs of cigarettes in lifetime	50.5		46.3		0.16
Attended nursery school for ≥1 years	11.5		16.2		0.03
Participant's education
Less than high school	8.9		6.1
High school	26.0		24.5
College	51.3		51.3
Advanced degree	13.9		18.1		0.11
Alcohol intake, g/day		6.3		7.7	0.06
Energy intake, kcal/day		1,605		1,608	0.94
Tumor Epstein-Barr virus status
Positive	16.3
Negative	57.6
Missing	26.2

^aRestricted to cases and controls who completed the food frequency questionnaire.

^bP values were calculated by using t tests to compare means or chi-square tests with percentages between cases and controls.