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Table 1 Characteristics of older adults aged 60 years and over in the NHANES 2011-14 (n=3632) and the final population included in this study (n=1848)

From: Associations between nut intake, cognitive function and non‐alcoholic fatty liver disease (NAFLD) in older adults in the United States: NHANES 2011-14

  Study sample
(n=1848)
NHANES population
(n=3632)
P
Age in years, mean (SD) 69.0 (6.7) 70 (7.0) 0.001
Females, n (%) 969 (52.4) 1872 (51.5) 0.532
Racial Group, n (%)    0.001
Mexican American 162 (8.8) 336 (9.3)  
Non-Hispanic White 943 (51.0) 1648 (45.4)
Non-Hispanic Black 400 (21.6) 871 (24.0)
Non-Hispanic Asian 138 (7.5) 350 (9.6)
Othera 205 (11.1) 427 (11.8)
Educational status, n (%)    <0.001
<11thgradeb 426 (23.1) 1074 (29.6)  
High School graduate 457 (24.7) 836 (23.1)
Some college or AA degree 531 (28.7) 948 (26.2)
College graduate or above 434 (23.5) 766 (21.1)
Socioeconomic position c 2.2 (1.3, 4.2) 2.0 (0.0, 5.0) <0.001
Household size, n (%)    0.075
Lives alone 461 (24.9) 921 (25.4)  
2 people in household 874 (47.3) 1610 (44.3)  
>2 people in household 513 (27.8) 1101 (30.3)  
Smoking status, n (%)    0.037
Never smoked 954 (51.6) 1815 (50.0)  
Ex-smoker 701 (37.9) 1347 (37.1)
Current smoker 193 (10.4) 465 (12.8)
Meeting PA guidelines, n (%) 668 (36.1) 1198 (33.0) 0.020
History of T2DM, n (%) 521 (28.2) 1023 (28.3) 0.954
History of CVD , n (%) 406 (22.0) 857 (23.7) 0.142
  1. All values are mean with standard deviations (SD) or number (proportions, %) unless stated.
  2. PA physical activity, T2DM type 2 diabetes, CVD cardiovascular disease
  3. aOther includes ‘Other Hispanic’ (n=191) and other racial groups (n=28)
  4. bIncludes educational status ‘<9th grade’ (n=206) and ‘9th – 11th grade’ (n=265)
  5. cSocioeconomic position indicated as Ratio of Family Income to Poverty, median with first and third quartile