TABLE 1.

Distribution of baseline demographic characteristics and covariates for participants in the European Prospective Investigation into Cancer and Nutrition included in the diet‐wide association study of lung cancer

	Total		Cases
	N	%	N	%
Total	327 790	100	2420	100
Sex
Women	235 038	72	1241	51
Men	92 752	28	1179	49
Age at recruitment (years)
[17.8, 40)	43 329	13	51	2
[40, 45)	45 889	14	127	5
[45, 50)	55 142	17	190	8
[50, 55)	74 294	23	596	25
[55, 60)	55 478	17	640	26
[60, 65)	42 059	13	704	29
[65, 70)	9428	3	94	4
[70, 75)	1801	0.5	13	0.5
[75, 98.5]	370	0.1	5	0.2
Smoking status
Never	194 087	59	278	11
Former	68 129	21	453	19
Current	65 574	20	1689	70
Education
None/primary school	97 043	30	1130	47
Technical/professional school	77 228	24	690	29
Secondary school	71 099	22	280	12
Longer education, including university degree	82 420	25	320	13
BMI (kg/m 2 )
[10.2, 20)	21 279	6	140	6
[20, 23)	82 374	25	509	21
[23, 25)	68 292	21	497	21
[25, 30)	113 418	35	933	39
[30, 35)	33 452	10	270	11
[35, 77.9]	8975	3	71	3
Physical activity (Cambridge index)
Inactive	60 394	18	535	22
Moderately inactive	112 119	34	786	32
Moderately active	89 745	27	567	23
Active	65 532	20	532	22
Diabetes
No	319 228	97	2337	97
Yes	8562	3	83	3
Cigarettes per day (fourths)
[0, 7.2)	229 940	70	459	19
[7.2, 11.7)	33 897	10	364	15
[11.7, 18.8)	33 880	10	857	35
[18.8, 101]	30 073	9	740	31
Smoking duration (fourths, years)
[0, 14)	222 916	68	339	14
[14, 24)	35 791	11	169	7
[24, 33)	34 440	11	431	18
[33, 71.5]	34 643	11	1481	61