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Table 1 Characteristics of the study population.

From: Effect of Apolipoprotein E ε4 on the association between health behaviors and cognitive function in late midlife

  APOE ε4 non-carriers APOE ε4 carriers
N 3929 1518
Age (M, SD) 60.9 (5.9) 60.8 (5.9)
Women (N, %) 1071 (27.3) 384 (25.3)
Lower employment grade (N, %) 839 (21.4) 312 (20.6)
Less than secondary school (N, %) 1641 (41.8) 634 (41.8)
Smoking status (N, %)   
Current 587 (14.9%) 221 (14.6%)
Past 1468 (37.4%) 560 (36.9%)
Never 1874 (47.7%) 737 (48.6%)
Alcohol consumption (N, %)   
Abstinence 490 (12.5%) 214 (14.1%)
Moderate 2016 (51.3%) 749 (49.3%)
High 1423 (36.2%) 555 (36.6%)
Sedentary habit (N, %)   
Yes 1039 (26.4%) 390 (25.7%)
No 2890 (73.6%) 1128 (74.3%)
Fruit & vegetable consumption less than 2 times/day (N, %)   
Yes 1555 (39,6%) 630 (41,5%)
No 2374 (60,4%) 888 (58,5%)