Vitamin D receptor gene Tru9I polymorphism and risk for incidental sporadic colorectal adenomas

Table 1 Selected characteristics of cases and controls, MAP study, 1994-1997¹

	Cases (n = 171)	Controls (n = 220)	P1
Demographic factors
Age (yr)2	58.4 (8.4)	55.8 (10.2)	0.006
Male (%)	60	36	<0.001
White (%)	89	89	0.98
College education (%)	19	23	0.38
Major risk factors
Family history of colon cancer (%)	14	31	<0.001
Currently smoke cigarettes (%)	30	20	0.02
Currently drink alcohol (%)	75	55	<0.001
NSAID3 use (%)	19	30	0.007
Dietary intakes
Total energy (kcal/d)	2 010 (30)	2 169 (1 999)	0.27
Total fat (g/d)	71.3 (39.9)	72.6 (65.9)	0.8
Total meat (serve/wk)	4.4 (1.4)	4.5 (1.4)	0.57
Total fruits and vegetables (serve/wk)	6.1 (3.6)	7.4 (10.2)	0.09
Total calcium (mg/d)	736 (406.6)	871 (757)	0.02
Total vitamin D (IU/d)	315 (258.2)	359 (374)	0.16
Total folate (mg/d)	416.7 (241.6)	467 (402)	0.12
Total alcohol (g/d)	7.4 (15.1)	4.8 (20.8)	0.14

¹Adjusted for age, sex, total energy intake, history of colon cancer in a first degree relative, nonsteroidal anti-inflammatory drug use, current smoking status, and total calcium and alcohol intakes;

²mean±SD presented unless otherwise indicated, except for age, all other means are age adjusted; ³non-steroidal anti-inflammatory drug.