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Table 1 Characteristics of participants by alcohol trajectories in Whitehall II and NSHD

From: Twenty-year trajectories of alcohol consumption during midlife and atherosclerotic thickening in early old age: findings from two British population cohort studies

   Alcohol trajectories over previous 20 years Total
  Stable none (n, %) Stable moderate drinker (n, %) Stable heavy drinker (n, %) Mostly moderate (n, %) Mostly heavy (n, %) Former drinker (n, %)  
Whitehall II Total 216 (5.3) 1615 (39.8) 274 (6.8) 1010 (24.9) 536 (13.2) 409 (10.1) 4060 (100)
Mean age, years (SD) 61.6 (6.3) 61.4 (5.9) 60.0 (5.4) 60.8 (5.8) 60.7 (5.79) 61.5 (6.0) 61.1 (5.9)
Median cIMT, mm (IQR) 0.78 (0.70–0.90) 0.77 (0.68–0.87) 0.77 (0.70–0.88) 0.77 (0.68–0.87) 0.87 (0.70–0.90 0.78 (0.70–0.87) 0.77 (0.68–0.87)
Male 96 (44.4) 1234 (76.4) 233 (85) 703 (69.6) 437 (81.5) 211 (51.6) 2914 (71.8)
Female 120 (55.5) 381 (23.6) 41 (15) 307 (30.4) 99 (18.5) 198 (48.4) 1146 (28.2)
Smoking: Never 155 (72.1) 883 (54.8) 87 (31.8) 501 (50.9) 198 (37.1) 210 (51.6) 2043 (50.6)
Ex-smoker 47 (21.9) 646 (40.1) 145 (52.9) 429 (42.9) 294 (55.2) 159 (39.1) 1720 (42.6)
Current 1–10 cpd 8 (3.7) 46 (2.9) 14 (5.1) 21 (2.1) 16 (3.0) 21 (5.2) 126 (3.1)
Current 11+ cpd 5 (2.3) 35 (2.2) 28 (10.2) 41 (4.1) 25 (4.7) 17 (4.2) 151 (3.7)
SEP: High 35 (16.2) 858 (53.1) 159 (58.0) 441 (43.7) 302 (56.3) 93 (22.7) 1881 (46.3)
Intermediate 107 (49.5) 648 (40.1) 111 (40.5) 473 (46.8) 215 (40.1) 210 (51.3) 1768 (43.5)
Low 74 (34.3) 109 (6.7) 4 (1.5) 96 (9.5) 19 (3.5) 106 (25.9) 411 (10.1)
White 132 (61.1) 1516 (93.9) 270 (98.5) 934 (92.5) 522 (97.4) 340 (83.1) 3715 (91.5)
Non-white 84 (38.9) 99 (6.1) 4 (1.5) 76 (7.5) 14 (2.6) 69 (16.9) 342 (8.5)
NSHD Total 62 (4.5) 478 (34.4) 49 (3.5) 436 (31.3) 181 (13.0) 185 (13.3) 1391 (100)
Mean age, years (SD) 63.2 (1.03) 63.3 (1.12) 63.2 (1.17) 63.2 (1.16) 63.2 (1.20) 63.4 (0.99) 63.3 (1.12)
Median cIMT, mm (IQR) 0.63 (0.57–0.76) 0.66 (0.60–0.75) 0.68 (0.62–0.80) 0.67 (0.59–0.75) 0.67 (0.59–0.77) 0.68 (0.61–0.76) 0.67 (0.60–0.76)
Male 16 (25.8) 230 (48.1) 43 (87.8) 207 (47.5) 112 (61.9) 65 (35.1) 673 (48.4)
Female 46 (74.2) 248 (51.9) 6 (12.2) 229 (52.5) 69 (38.1) 120 (64.9) 718 (51.6)
Smoking: Never 31 (55.4) 180 (40.2) 4 (9.3) 129 (31.8) 38 (22.4) 59 (34.9) 441 (34.1)
Ex-smoker 19 (33.9) 242 (54.0) 33 (76.7) 248 (61.1) 106 (62.4) 92 (54.4) 740 (57.3)
Current 1–10 cpd 5 (8.9) 11 (2.5) 1 (2.3) 8 (2.0) 9 (5.3) 6 (3.6) 40 (3.1)
Current 11+ cpd 1 (1.8) 15 (3.3) 5 (11.6) 21 (5.2) 17 (10.0) 12 (7.1) 71 (5.5)
SEP: High 20 (36.4) 263 (59.2) 26 (57.8) 227 (56.8) 104 (61.9) 73 (44.5) 713 (55.9)
Intermediate 21 (38.2) 158 (35.6) 14 (31.1) 131 (32.8) 52 (31.0) 70 (42.7) 446 (35.0)
Low 55 (25.5) 23 (5.2) 5 (11.1) 42 (10.5) 12 (7.1) 21 (12.8) 117 (9.2)
  1. SEP Socioeconomic position, cIMT Carotid intima media thickness, SD Standard Deviation, IQR Interquartile range, cpd Cigarettes per day