TABLE 1.

Lifestyle and demographic characteristics of women with non-Hodgkin lymphoma and of controls participating in a population-based case-control study, San Francisco Bay Area, California, 1988–1993

Characteristic	NHL* cases (n = 581)		Controls (n = 836)
	No.	%	No.	%
Age group† (years)
<40	71	12	105	13
40–<50	79	14	117	14
50–<60	115	20	170	20
60–<70	210	36	292	35
70–74	106	18	152	18
White non-Hispanic
No	129	22	158	19
Yes	452	78	678	81
Education
<12 years	76	13	72	9
High school graduate	208	36	265	32
Some college	130	22	232	28
College graduate	84	15	154	18
>16 years	83	14	113	14
Cigarette smoking status
No tobacco use	284	49	407	49
Former smoker	172	30	265	32
Current smoker	125	22	164	20
Weekly alcohol consumption
No alcohol consumption	221	38	255	30
<2 drinks	124	21	197	24
2–<5.5 drinks	121	21	198	23
≥5.5 drinks	115	20	185	22
Body mass index‡
Lean to normal (<25)	405	70	623	75
Overweight (25–<30)	129	22	166	20
Obese (≥30)	45	8	46	6
Marital status
Married, living as married, widowed	442	76	543	65
Separated, divorced, single, never married	139	24	293	35
Lifetime no. of sexual partners
0–1	284	50	303	37
2–4	144	25	248	30
≥5	143	25	274	33

^*NHL, non-Hodgkin lymphoma.

^†Age at diagnosis for cases and age at interview for controls.

^‡Usual adult weight in kilograms divided by height in meters squared.