Table 2. Characteristics of the MCC-Spain study participants.

Characteristic	Control		Case		Crude OR	95% CI
	n	%	n	%
Age
25–50 years	394	14.43	80	6.04	1.00
50–70 years	1441	52.76	649	48.98	2.22	1.71–2.87
70–90 years	909	33.28	607	45.81	3.29	2.53–4.27
Sex
Female	1275	46.47	471	35.25	1.00
Male	1469	53.53	865	64.75	1.59	1.39–1.82
Family History of CRC
No	2411	87.86	1044	78.14	1.00
Yes	333	12.14	292	21.86	2.25	1.87–2.71
Smoking
Non-smoker	1195	43.55	557	41.69	1.00
Former/Current smoker	1549	56.45	779	58.31	1.20	1.04–1.38
Alcohol
Low consumption	2317	84.44	1036	77.54	1.00
High consumption	427	15.56	300	22.46	1.38	1.16–1.63
Body Mass Index at age 45
<30 kg/m2	2556	93.15	1194	89.37	1.00
≥30 kg/m2	188	6.85	142	10.63	1.36	1.07–1.73
Physical activity in leisure time (MET)
Yes	1687	61.48	717	53.67	1.00
No	1057	38.52	619	46.33	1.37	1.19–1.58
Vegetables
>200 g/day	846	30.83	345	25.82	1.00
≤200 g/day	1898	69.17	991	74.18	1.39	1.19–1.62
Red meat
≤65 g/day	1621	59.07	662	49.55	1.00
>65 g/day	1123	40.93	674	50.45	1.38	1.20–1.59
NSAID/ASA
Regular use in the last year	1995	72.70	1064	79.64	1.00
Non-use/sporadically use	749	27.30	272	20.36	1.54	1.31–1.82

MET: Metabolic equivalent of task per hour per week; NSAID: Nonsteroidal anti-inflammatory drugs; ASA: acetylsalicylic acid.