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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Disabil Health J. 2013 Aug 13;7(1 0):S4–14. doi: 10.1016/j.dhjo.2013.06.007

Table 1.

NHIS Sample Sizes (unweighted numbers) and Characteristics (weighted %), Ages 40-64 and 65 and Over, 1997 and 2010

40-64 65+

1997 2010 All Years 1997 2010 All Years
Family core respondents (n) 28,970 28,691 392,679 11,891 10,440 145,245
Proxy response in family core 43.98% 43.51% 34.62% 36.16%
Female 51.27 51.13 57.91 56.68
Male 48.73 48.87 42.09 43.32
Age
40-44 28.00 20.48
45-49 24.25 22.21
50-54 19.57 21.75
55-59 15.24 18.68
60-64 12.94 16.89
65-69 29.99 31.85
70-74 26.57 22.98
75-79 20.96 18.51
80-84 13.39 14.07
85+ 9.09 12.59
Sample adults (n) 13,618 11,397 169,509 6,972 5,264 78,328
Education
0 to 8 years 5.98% 4.54% 18.24% 9.94%
9 to 11 years 7.93 5.45 14.24 9.62
12 years 32.10 28.53 35.13 33.59
Some college 27.14 29.30 17.23 23.86
College or more 26.12 31.81 13.33 22.21
Missing 0.74 0.37 1.83 0.79
Never smoked 45.38 54.66 48.97 50.60
Formerly smoked 28.43 23.70 38.29 39.20
Currently smokes 25.39 20.83 11.94 9.34
Missing 0.80 0.81 0.80 0.86
BMI<18.5 1.25 1.06 3.19 2.18
18.5≤BMI<25 35.79 28.13 41.08 33.50
25≤BMI<30 37.03 35.61 36.93 36.03
30≤BMI<35 15.36 19.04 12.12 16.28
35≤BMI<40 4.52 7.36 2.80 5.31
BMI≥40 2.71 4.75 1.11 2.93
Missing 3.34 4.07 2.77 3.78