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. Author manuscript; available in PMC: 2022 Feb 9.
Published in final edited form as: Prev Med. 2021 Feb 26;147:106483. doi: 10.1016/j.ypmed.2021.106483

Table 1:

Socio-demographic characteristics, personal health, and medical conditions by National Health Examination Survey (NHANES) study period. Among 50,671 participants an estimated 1,056,925,341 US residents.

NHANES Period
1988 – 1991 1991 – 1994 1999 – 2002 2003 – 2006 2007 – 2010 2015 – 2018
Participants (N) 7,387 7,850 7,893 7,759 10,395 9,387
Estimated Na (%)b 155,959,992 (14.76) 165,955,459 (15.70) 165,937,416 (15.70) 168,342,341 (15.93) 192,397,679 (18.20) 208,332,545 (19.71)
Presented as % (SE) or Mean (95% CI) c
Allostatic Load Total Score d 1.94 (1.84 – 2.05) 2.38 (2.28 – 2.48) 2.29 (2.20 – 2.38) 2.17 (2.10 – 2.23) 2.44 (2.37 – 2.51) 2.62 (2.53 – 2.71)
% High Allostatic Load e 33.47 (1.37) 43.91 (1.32) 40.17 (1.07) 39.15 (0.88) 44.69 (0.99) 48.55 (1.22)
Male Sex 48.89 (0.63) 48.95 (0.86) 49.71 (0.54) 49.97 (0.54) 49.67 (0.45) 49.19 (0.66)
Mean Age in years 43.77 (42.81 – 44.73) 44.25 (43.03 – 45.46) 45.03 (44.35 – 45.70) 45.51 (44.46 – 46.56) 46.13 (45.50 – 46.76) 47.44 (46.52 - 48.36)
Age Group
 18 – 29 24.70 (1.24) 23.30 (0.90) 20.79 (0.86) 20.33 (0.90) 21.16 (0.68) 20.26 (0.86)
 30 – 39 23.12 (1.07) 22.95 (0.83) 20.53 (0.85) 19.12 (0.78) 17.29 (0.51) 16.93 (0.63)
 40 – 49 17.98 (0.79) 19.51 (1.08) 21.71 (0.78) 21.92 (0.83) 19.94 (0.60) 16.42 (0.58)
 50 – 59 12.43 (0.41) 12.44 (0.64) 16.00 (0.59) 17.16 (0.67) 18.19 (0.52) 18.66 (0.78)
 60 – 69 11.65 (0.66) 10.98 (0.80) 10.47 (0.56) 10.79 (0.56) 12.10 (0.50) 15.14 (0.77)
 70+ 10.12 (0.74) 10.82 (1.00) 10.50 (0.45) 10.69 (0.80) 11.31 (0.40) 12.59 (0.72)
Race/Ethnicity
 Non-Hispanic White 78.04 (2.44) 75.02 (2.27) 72.56 (1.82) 73.15 (2.18) 69.89 (2.41) 63.95 (2.40)
 Non-Hispanic Black 10.25 (1.21) 10.74 (1.11) 9.60 (1.16) 10.50 (1.27) 10.24 (0.98) 10.46 (1.32)
 Latino 4.87 (0.57) 5.26 (0.72) 13.58 (1.86) 11.21 (1.33) 13.72 (1.79) 15.80 (1.73)
 Other & Mixed Race 6.84 (1.32) 8.98 (1.39) 4.25 (0.65) 5.15 (0.52) 6.15 (0.63) 9.79 (0.88)
Education
 < High school 25.97 (1.46) 24.21 (1.44) 21.31 (0.87) 17.82 (1.02) 19.92 (0.90) 12.11 (0.95)
 High school/GED 34.34 (1.21) 33.73 (1.33) 27.15 (1.08) 27.22 (0.77) 25.07 (0.89) 23.32 (0.93)
 Some college or Associates degreef 19.99 (0.75) 21.15 (1.24) 27.57 (0.89) 30.77 (0.85) 29.03 (0.65) 31.11 (1.08)
 College graduate 19.22 (1.64) 20.63 (1.26) 23.82 (1.55) 24.15 (1.40) 25.88 (1.25) 30.63 (2.04)
Poverty to Income Ratio (PIR) Group
 1st quartile (0 – 1.11) 13.25 (0.74) 13.88 (1.64) 15.03 (1.10) 13.47 (0.83) 15.47 (0.79) 14.68 (0.77)
 2nd quartile (1.11 – 2.08) 18.92 (1.17) 19.89 (1.02) 17.87 (1.18) 18.41 (0.81) 17.98 (0.74) 17.67 (0.77)
 3rd quartile (2.08 – 3.77) 34.79 (1.25) 28.50 (1.08) 22.76 (0.77) 25.75 (0.90) 22.19 (0.98) 22.45 (0.95)
 4th quartile (3.77 – 11.89) 25.92 (1.98) 32.01 (2.24) 36.08 (1.77) 37.84 (1.48) 37.27 (1.22) 36.20 (1.68)
 Missing 7.11 (0.60) 5.72 (0.52) 8.26 (0.84) 4.53 (0.43) 7.09 (0.60) 9.01 (0.55)
Mean BMI, kg m−2 26.11 (25.89 – 26.33) 26.73 (26.46 – 26.99) 27.78 (27.50 – 28.06) 28.18 (27.87 – 28.50) 28.46 (28.26 – 28.66) 29.45 (29.08 – 29.82)
Current Smoker Status 30.64 (1.24) 26.45 (1.20) 23.82 (0.93) 24.52 (0.85) 20.81 (0.81) 17.81 (0.79)
Any Cancer History f 7.63 (0.48) 7.44 (0.55) 7.55 (0.41) 7.95 (0.40) 9.04 (0.41) 10.61 (0.47)
Ever Congestive Heart Failure 2.29 (0.18) 1.93 (0.24) 1.97 (0.23) 2.12 (0.19) 2.01 (0.18) 2.17 (0.20)
Ever Heart Attack 3.33 (0.31) 3.37 (0.35) 3.20 (0.25) 3.41 (0.32) 3.20 (0.23) 3.37 (0.32)
a

Estimated using sampling weights from National Health and Nutrition Examination Survey (NHANES).

b

Presented as weighted row percentage, describes the total percentage of participants among all study periods.

c

Presented as column proportion (standard error) or mean (95% confidence intervals) for continuous variables.

d

Allostatic load total score was calculated as sum total of components based on high-risk thresholds: albumin, BMI, C-reactive protein, creatinine clearance, diastolic blood pressure, glycated hemoglobin, systolic blood pressure, total cholesterol, triglycerides. Score range from 0 to 9.

e

High Allostatic load is defined as total Allostatic load score greater than or equal to 3 (presented as column percentages and standard errors).

f

Defined as self-reported response to ever being diagnosed by a doctor or health professional of any cancer or malignancy.