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. Author manuscript; available in PMC: 2012 Aug 23.
Published in final edited form as: J Am Geriatr Soc. 2008 Jan 2;56(3):444–453. doi: 10.1111/j.1532-5415.2007.01570.x

Table 1.

Proportion of Individuals in Each Category of Mobility Limitation, Activities of Daily Living (ADLs), and Instrumental Activities of Daily Living (IADLs) According to Racial and Ethnic Groups in 2004

Disability-Related Outcomes Racial or Ethnic Group
White Non-Hispanic White Hispanic Black Asian American or Alaskan Native Other
Sample size, n 9,683 641 980 249 105 325
Estimated population in thousands, n* 25,305 1,662 2,552 735 256 873
Mobility limitation, weighted estimate (95% CI)†
 None 0.55 (0.53–0.57) 0.55 (0.51–0.59) 0.42 (0.39–0.46) 0.60 (0.53–0.67) 0.49 (0.40–0.58) 0.51 (0.46–0.57)
 Mild 0.30 (0.28–0.32) 0.30 (0.27–0.34) 0.38 (0.35–0.41) 0.27 (0.21–0.33) 0.32 (0.24–0.39) 0.29 (0.23–0.34)
 Moderate 0.10 (0.09–0.11) 0.09 (0.07–0.11) 0.12 (0.010–0.14) 0.07 (0.04–0.11) 0.10 (0.02–0.18) 0.11 (0.08–0.14)
 Severe 0.04 (0.03–0.04) 0.04 (0.03–0.05) 0.06 (0.04–0.07) 0.05 (0.03–0.08) 0.04 (0.00–0.08) 0.06 (0.04–0.09)
 Do not walk 0.01 (0.01–0.01) 0.02 (0.01–0.03) 0.02 (0.01–0.02) 0.01 (0.00–0.02) 0.04 (0.00–0.09) 0.03 (0.01–0.05)
Difficulty in ADLs, weighted estimate (95% CI)
 0 0.74 (0.72–0.75) 0.71 (0.68–0.74) 0.69 (0.65–0.73) 0.75 (0.70–0.81) 0.70 (0.61–0.80) 0.65 (0.59–0.70)
 1–2 0.19 (0.18–0.20) 0.18 (0.14–0.21) 0.20 (0.17–0.23) 0.18 (0.13–0.23) 0.23 (0.13–0.33) 0.22 (0.17–0.27)
 3–4 0.05 (0.04–0.05) 0.05 (0.04–0.07) 0.06 (0.05–0.08) 0.05 (0.02–0.07) 0.02 (0.00–0.04) 0.08 (0.05–0.11)
 5–6 0.02 (0.02–0.03) 0.06 (0.04–0.09) 0.05 (0.03–0.06) 0.02 (0.01–0.03) 0.05 (0.01–0.09) 0.05 (0.02–0.08)
Difficulty in IADLs, weighted estimate (95% CI)
 0 0.67 (0.65–0.68) 0.61 (0.57–0.65) 0.59 (0.55–0.63) 0.66 (0.59–0.72) 0.60 (0.50–0.70) 0.58 (0.52–0.64)
 1 or 2 0.23 (0.22–0.24) 0.21 (0.15–0.27) 0.23 (0.20–0.26) 0.22 (0.16–0.27) 0.24 (0.15–0.33) 0.29 (0.23–0.33)
 3 or 4 0.07 (0.06–0.07) 0.10 (0.08–0.13) 0.10 (0.08–0.12) 0.07 (0.04–0.10) 0.08 (0.03–0.12) 0.07 (0.05–0.10)
 5 or 6 0.04 (0.03–0.04) 0.07 (0.02–0.13) 0.08 (0.06–0.10) 0.05 (0.03–0.08) 0.08 (0.03–0.14) 0.06 (0.04–0.09)

Note: The weighted estimation uses the weight from the sample scheme and therefore takes into account the age distribution of the population.

*

Estimate of population size according to racial or ethnic group, using weighted estimation.

†

Sample size for mobility limitation estimates is slightly smaller because 33 participants’ mobility limitation could not be classified using the algorithm.

CI = confidence interval.