Table 1.

Association of selected demographic and lifestyle characteristics at baseline with risk of CML in the NIH-AARP Diet and Health Study, 1995–2006.

	N = 493,188			95% CI
	Cases	Person-years	HR
Age (years)
<60	50	1,700,268	1.001	Ref.
60–65	37	1,260,345	0.99	0.65–1.52
≥65	91	1,525,551	2.00	1.42–2.83
Sex
Male	139	2,625,,367	1.002	Ref.
Female	39	1,860,798	0.40	0.28–0.57
Education (years)
<12	21	261,095	1.003	Ref.
12–15	95	2,363,407	0.57	0.36–0.92
≥16	57	1,733,067	0.42	0.25–0.69
Missing	5
Race
White	167	4,085,600	1.003	Ref.
Black	4	176,855	0.70	0.26–1.90
Other	7	223,710	0.78	0.37–1.66
Smoking
Never	47	1,623,495	1.003	Ref.
Former	104	2,185,523	1.38	0.97–1.96
Current	24	508,640	1.50	0.89–2.50
Missing	6
Alcohol (drinks/day)
Never	41	1,084,438	1.003	Ref.
>0–<1	87	2,386,138	0.94	0.65–1.37
≥1–<3	35	685,172	1.13	0.72–1.78
≥3	15	330,417	0.94	0.52–1.70
BMI (kg/m2)
<25	45	1,558,044	1.003	Ref.
25–<30	85	1,863,465	1.37	0.95–1.97
≥30	46	958,766	1.65	1.09–2.49
Missing	2
Vigorous physical activity (times per week)
<1	63	1,388,497	1.003	Ref.
1–2	39	971,078	0.83	0.56–1.24
≥3	73	2,079,673	0.68	0.48–0.95
Missing	3

¹adjusted for sex.

²adjusted for age.

³adjusted for age and sex.