Table 1.

Baseline characteristics for patients based on case status

	Cases,a n=909	Controls,b n=855	P-value
Age, years (mean ± SD)	58.9±7.2	56.6±7.1	<0.0001
Sex, % female	25.2	26.0	0.62
Race, %
White	91.9	92.2	0.88
African-American	6.5	6.1
Other	1.7	1.8
Alcohol use, %
Current	47.4	19.8	0.001
Former	27.7	23.4
Never	24.6	56.5
Unknown	0.2	0.4
Current smokers, %	77.0	67.0	<0.0001
Facility site, % Vanderbilt	63.3	64.4	0.64
BMI (mean ± SD), kg/m2	28.4±5.15	28.1±5.28	0.24
Screening reason, %
Yearly screening	58.9	58.3	0.60
Family history	10.8	12.6
Diagnostic/bleeding/follow-up	21.9	20.8
Other	8.5	8.3
Unknown	0	0
NSAIDS, %
Never	42.7	38.3	0.05
Former	6.9	7.6
Current	49.4	53.9
Unknown	1.0	0.2

Notes:

^aCase is a patient with a pathologically confirmed adenoma on colonoscopy.

^bControl has no adenoma on colonoscopy.

Abbreviation: BMI, body mass index.