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Table 1 Baseline characteristics of the Doetinchem Cohort Study (DCS) and the Longitudinal Aging Study Amsterdam (LASA) for men and women separately

From: Generation shifts in smoking over 20 years in two Dutch population-based cohorts aged 20–100 years

Age of generation at baseline of the DCS 20-29 y 30-39 y 40-49 y 50-59 y
  Men Women Men Women Men Women Men Women
N (%) 467 (43) 618 (57) 941 (46) 1084 (54) 926 (49) 957 (51) 658 (47) 732 (53)
Age 24.9 24.9 34.6 34.4 43.8 43.7 54.0 54.1
(3.0) (2.8) (2.9) (2.8) (2.6) (2.8) (2.8) (2.9)
Level of education, N (%)  
• Low 244 (52) 302 (49) 463 (49) 694 (64) 542 (59) 724 (76) 403 (61) 601 (83)
• Middle 173 (37) 251 (41) 257 (28) 207 (19) 189 (20) 110 (12) 112 (17) 66 (9)
• High 52 (11) 65 (10) 217 (23) 180 (17) 190 (21) 119 (12) 142 (22) 61 (8)
Smoking, N (%)  
• Current 186 (40) 237 (38) 347 (37) 409 (38) 310 (34) 318 (33) 204 (31) 182 (25)
• Ex 59 (12) 108 (18) 283 (30) 335 (31) 361 (39) 244 (26) 307 (47) 137 (19)
• Never 224 (48) 273 (44) 309 (33) 339 (31) 253 (27) 395 (41) 147 (22) 413 (56)
Packyears 3.3 3.0 7.8 6.6 13.4 7.9 17.9 7.6
  (5.2) (3.9) (8.5) (7.3) (13.5) (10.1) (16.7) (12.4)
Age of generation at baseline of the LASA 55-59 y 60-69 y 70-79 y 80-85 y
  Men Women Men Women Men Women Men Women
N (%) 153 (48) 168 (52) 355 (47) 400 (53) 305 (48) 326 (52) 118 (46) 136 (54)
Age 57.6 57.7 64.9 65.0 75.1 75.0 82.5 82.7
(1.4) (1.4) (2.9) (2.8) (2.9) (2.9) (1.5) (1.5)
Level of education, N (%)  
• Low 68 (45) 98 (58) 161 (46) 270 (67) 173 (57) 224 (69) 76 (64) 99 (73)
• Middle 51 (33) 52 (31) 125 (35) 102 (26) 85 (28) 81 (25) 21 (18) 23 (17)
• High 34 (22) 18 (11) 68 (19) 28 (7) 47 (15) 21 (6) 21 (18) 14 (10)
Smoking, N (%)  
• Current 64 (42) 45 (27) 110 (31) 75 (19) 96 (31) 36 (11) 28 (24) 12 (9)
• Ex 77 (51) 61 (36) 218 (61) 135 (34) 180 (59) 90 (28) 86 (73) 28 (21)
• Never 11 (7) 62 (37) 27 (8) 190 (47) 29 (10) 200 (61) 4 (3) 96 (70)
Packyears 27.4 11.7 27.4 8.0 25.2 4.9 25.0 2.5
(26.0) (19.1) (27.0) (15.2) (25.5) (13.1) (24.8) (11.6)
  1. Mean and standard deviation are presented for continuous variables, otherwise indicated.