Table 1.

Study population: individual baseline characteristics, 11 cohorts.

Variables	FINRISK	SNAC-K	SALT	60y	SDPP	DCH	HNR	KORA	EPIC- Turin	SIDRIA- Turin	SIDRIA- Rome
Participants (n)	9,995	2,684	6,084	3,686	7,723	35,693	4,433	7,581	7,230	5,137	9,200
Person-years at risk	105,060	16,256	51,756	39,978	106,995	464,055	34,941	76,027	91,490	56,366	102,894
Percent of the original cohorta	89.3	79.8	86.4	87.1	97.2	90.5	92.1	83.2	82.4	95.1	86.8
Cases (n)	184	164	216	125	107	1,848	71	210	55	37	69
Years of enrollment	1992, 1997, 2002, 2007	2001–2004	1998–2002	1997–1999	1992–1998	1993–1997	2000–2003	1994–1995, 1999–2001	1993–1998	1999	1999
Individual characteristics
Age, years [mean (minimum–maximum)]	48 (25–74)	74 (60–102)	59 (42–97)	60 (59–61)	47 (35–56)	57 (50–66)	59 (45–75)	50 (25–82)	50 (35–67)	44 (27–76)	44 (28–63)
Sex, female (%)	55	65	58	53	61	54	52	51	48	52	53
Marital status (%)
Single	16	15	14	5	17b	7	6	10	6	2	0
Married/living with partner	70	47	67	71	83	69	75	77	86	95	100
Divorced/separated	11	13	11	17	—	18	10	7	5	1	0
Widowed	3	25	8	7	—	6	9	6	3	2	0
Education (%)
≤ Primary school	30	27	21	28	26	30	11	12	44	17	45
≤ Secondary school or equivalent	52	42	43	44	45	47	56	75	43	71	40
≥ University degree	17	31	36	28	29	23	33	13	14	11	15
Occupational status (%)
Employed/self-employed	71	75	—	51	92	80	42	60	—	73	71
Unemployed	6	25c	—	10	8c	20c	6	3	—	7	4
Homemaker/housewife	4	—	—	8	—	—	14	14	—	21	25
Retired	19	—	—	31	—	—	38	23	—	0	0
Smoking status (%)
Current smoker	26	15	23	21	26	36	23	25	24	41	42
Former smoker	28	34	43	38	36	28	33	31	33	21	23
Never-smoker	46	51	35	40	37	36	43	44	43	38	34
Years of smoking, among ever smokers (mean ± SD)	15 ± 12	30 ± 17	—	26 ± 13	20 ± 10	29 ± 10	36 ± 9d	21 ± 12	23 ± 10	18 ± 8	18 ± 7
No. of cigarettes/day, among current smokers (mean ± SD)	15 ± 9	11 ± 8	13 ± 8	13 ± 7	14 ± 7	17 ± 10	17 ± 12	15 ± 11	14 ± 9	15 ± 9	15 ± 9
Abbreviations: DCH, Danish Diet, Cancer and Health cohort study; EPIC, European Prospective Investigation into Cancer and Nutrition; FINRISK, Finland Cardiovascular Risk Study; HNR, Heinz Nixdorf Recall Study; KORA, Cooperative Health Research in the Augsburg Region; SALT, Screening Across the Lifespan Twin study; SDPP, Stockholm Diabetes Prevention Program study; SIDRIA, International Study on Asthma and Allergies in Childhood; SNAC-K, Swedish National Study on Aging and Care in Kungsholmen; 60y, 60-year-olds study. aAfter exclusion of prevalent cases and observations with missing information on any of the variables in the base model. bAll except married/living with partner. cAll except employed. dOnly among current smokers.