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. 2016 Mar 14;22(10):2981–2992. doi: 10.3748/wjg.v22.i10.2981

Table 1.

Baseline characteristics of the subjects according to age n (%)

Variable Age group
P value
< 40 (n = 694) 40-44 (n = 591) 45-49 (n = 491) 50 (n = 1043)
Males 465 (67.0) 443 (75.0) 363 (73.9) 717 (68.7) 0.790
Body mass index (kg/m2) 23.1 ± 3.3 23.8 ± 3.3 24.0 ± 3.0 24.0 ± 3.0 < 0.001
Waist circumference (cm) 81.5 ± 10.3 82.9 ± 9.5 83.7 ± 8.8 84.1 ± 8.7 < 0.001
Diabetes mellitus 17 (2.4) 21 (3.6) 33 (6.7) 130 (12.5) < 0.001
Hypertension 89 (12.8) 146 (24.7) 155 (31.6) 462 (44.3) < 0.001
Metabolic syndrome 48 (6.9) 67 (11.3) 77 (15.7) 226 (21.7) < 0.001
High hsCRP 54 (7.8) 55 (9.3) 41 (8.4) 131 (12.6) 0.001
Triglyceride (mg/dL) 116.0 ± 91.2 125.4 ± 85.3 130.2 ± 90.2 123.8 ± 83.6 0.039
HDL cholesterol (mg/dL) 58.7 ± 15.1 57.5 ± 14.7 56.3 ± 14.6 56.7 ± 15.1 0.018
LDL cholesterol (mg/dL) 132.0 ± 50.3 136.6 ± 34.1 139.5 ± 36.8 137.4 ± 35.1 0.006
Total cholesterol (mg/dL) 202.1 ± 37.5 208.0 ± 36.0 210.8 ± 41.6 208.2 ± 39.4 0.001
Alcohol consumption 272 (39.2) 263 (44.5) 235 (47.9) 348 (33.4) 0.005
Smoking status
Never 312 (45.0) 212 (35.9) 181 (36.9) 449 (43.0) < 0.001
Former 134 (19.3) 136 (23.0) 131 (26.7) 366 (35.1)
Current 248 (35.7) 243 (41.1) 179 (36.5) 228 (21.9)
Colorectal adenoma 61 (8.8) 87 (14.7) 105 (21.4) 302 (29.0) < 0.001
Advanced neoplasm 6 (0.9) 4 (0.7) 6 (1.2) 26 (2.5) 0.004
≥ 1 cm 5 (0.7) 3 (0.5) 5 (1.0) 24 (2.3) 0.001
Villous 1 (0.1) 1 (0.2) 1 (0.2) 7 (0.7) 0.055
High grade 0 (0.0) 1 (0.2) 1 (0.2) 4 (0.4) 0.091
Multiplicity 8 (1.2) 18 (3.0) 33 (6.7) 121 (11.6) < 0.001

hsCRP: High-sensitivity C-reactive protein; HDL: High-density lipoprotein cholesterol; LDL: Low-density lipoprotein cholesterol.