Small Area Estimation of Dependency: Final Report. Direct Estimates

01/13/1989

Direct estimates from the 1984 NHIS-SOA indicate that approximately 2.0 million (or 7.3%) of the noninstitutionalized elderly Americans suffered from at least one ADL dependency, and an additional 4.2 million (or 16.4%) suffered from at least one IADL dependency. Prevalence and percentage estimates by race, sex and age are shown in Table 1 and Table 2, respectively.

TABLE 1: Direct Point Estimate of Noninstitutionalized Americans Aged 65 and Over Who Were Functionally Dependent in 1984 by Age, Sex and Race
Race Sex Personal Care Dependent1 Mobility or Household Activity Dependent2
65-69 70-74 75-79 80-84 85 & Over 65 & Over 65-69 70-74 75-79 80-84 85 & Over 65 & Over
White Male   164,644     143,520     147,240   87,750   111,319   654,473   255,589   238,009   185,456     121,775     114,223   915,052
Female   157,176 190,273 192,626   234,942   286,274 1,061,291 608,833 629,901 668,388 479,112 422,742   2,808,976  
Both 321,820 333,793 339,866 322,692 397,593   1,715,764   864,422 867,910 853,844 600,887 536,965 3,724,028
NonWhite Male 20,095 15,920 27,803 17,060 12,628 93,506 34,700 35,507 12,834 12,037 6,461 101,539
Female 27,466 29,173 32,021 24,656 30,263 143,579 88,035 129,402 93,806 60,226 33,796 405,265
Both 47,561 45,093 59,824 41,716 42,891 237,085 122,735 164,909 106,640 72,263 40,257 506,804
All Races   Male 184,739 159,440 175,043 104,810 123,947 747,979 290,289 273,516 198,290 133,812 120,684 1,016,591
Female 184,642 219,446 224,647 259,598 316,537 1,204,870 696,868 759,303 762,194 539,338 456,538 3,214,241
Both 369,381 378,886 399,690 364,408 440,484 1,952,849 987,157   1,032,819   960,484 673,150 577,220 4,230,832
SOURCE: 1984 National Health Interview Survey’s Supplement on Aging.
  1. Personal Care dependent includes bathing, dressing, toileting, transferring or eating. Individuals classified as personal care dependent may also be dependent in mobility or household activities but are counted only as personal care dependent.
  2. Mobility or household activity includes inside mobility, outside mobility, meal preparation, grocery shopping, money management, housework (heavy and light), and telephone usage. Individuals already classified and counted in this table as personal care dependent are excluded from this category.

 

TABLE 2: Direct Point Estimates of the Percent of Noninstitutionalized Americans Aged 65 and Over Who Were Functionally Dependent in 1984 by Age, Sex and Race
Race Sex Personal Care Dependent1 Mobility or Household Activity Dependent2
  65-69     70-74     75-79     80-84     85 & Over     65 & Over     65-69     70-74     75-79     80-84     85 & Over     65 & Over  
White Male 4.45 5.29 7.70 9.68 20.49 6.70 7.1 9.0 9.9 13.8 21.6 9.6
Female   3.46 5.08 6.63 13.44 23.55 7.50 13.7 17.1 23.5 27.9 36.1 20.3
Both 3.91 5.17 7.05 12.16 22.61 7.17 10.7 13.7 18.1 23.1 31.6 15.9
NonWhite Male 5.29 5.63 12.40 20.11 30.64 9.23 9.5 13.0 6.4 15.4 15.7 10.4
Female 5.87 6.39 11.51 13.00 31.38 9.65 19.7 29.5 34.3 32.3 38.1 28.3
Both 5.61 6.10 11.91 15.20 31.16 9.48 15.1 23.2 21.9 27.3 31.0 21.1
All Races   Male 4.53 5.32 8.19 10.58 21.20 6.93 7.3 9.3 9.5 13.9 21.2 9.7
Female 3.69 5.22 7.06 13.40 24.13 7.70 14.2 18.4 24.5 28.3 36.2 21.0
Both 4.06 5.26 7.51 12.44 23.23 7.34 11.1 14.6 18.5 23.5 31.5 16.4
SOURCE: 1984 National Health Interview Survey’s Supplement on Aging.
  1. Personal Care dependent includes bathing, dressing, toileting, transferring or eating. Individuals classified as personal care dependent may also be dependent in mobility or household activities but are counted only as personal care dependent.
  2. Mobility or household activity includes inside and outside mobility, meal preparation, grocery shopping, money management, housework and laundry, or taking medications. Individuals already classified and counted in this table as personal care dependent are excluded from this category.

 

With the use of the primary sampling unit (PSU) and the primary strata used for sampling, we calculated standard errors using a statistical package (PROC SESUDAAN) which accounts for the complex sampling design of the 1984 NHIS-SOA (Shah 1981). The standard errors were computed using the first-order Taylor approximation of the deviations of estimates from their expected values and are presented in Table 3 and Table 4.

TABLE 3: Standard Errors for Direct Point Estimates of Noninstitutionalized Americans Aged 65 and Over Who Were Functionally Dependent in 1984 by Age, Sex and Race
Race Sex Personal Care Dependent1 Mobility or Household Activity Dependent2
65-69 70-74 75-79 80-84 85 & Over 65 & Over 65-69 70-74 75-79 80-84 85 & Over 65 & Over
White Male   22,089     17,716     19,053     16,788     15,575     44,178     28,512     35,599     19,739     16,863     15,080     51,398  
Female   61,455 20,109 23,692 21,521 25,062 24,852 41,039 34,866 52,187 28,654 31,635 97,799
Both 30,234 32,062 31,102 27,462 30,537 81,762 52,840 44,439 60,723 30,779 37,923 114,393
NonWhite Male 6,615 6,695 9,789 6,726 6,028 15,914 9,992 11,011 6,021 5,462 4,759 18,232
Female 19,032 8,025 8,729 9,101 7,743 8,847 14,699 18,944 16,384 13,098 9,883 38,966
Both 9,418 11,479 12,331 10,894 11,248 26,045 19,473 24,630 16,333 15,095 10,408 50,672
All Races   Male 23,550 19,188 22,393 18,136 16,076 47,292 29,841 26,794 21,340 18,231 15,813 53,851
Female 21,067 23,577 25,280 26,080 26,048 62,634 42,659 37,894 55,004 31,530 31,851 102,984
Both 33,080 32,690 36,685 28,888 31,919 86,074 56,564 49,549 63,438 35,726 38,704 124,479
SOURCE: 1984 National Health Interview Survey’s Supplement on Aging.
  1. Personal Care dependent includes bathing, dressing, toileting, transferring or eating. Individuals classified as personal care dependent may also be dependent in mobility or household activities but are counted only as personal care dependent.
  2. Mobility or household activity includes inside mobility, outside mobility, meal preparation, grocery shopping, money management, housework (heavy and light), and telephone usage. Individuals already classified and counted in this table as personal care dependent are excluded from this category.

 

TABLE 4: Standard Errors for Direct Point Estimates of the Percent of Noninstitutionized Americans Aged 65 and Over Who Were Functionally Dependent in 1982 by Age, Sex and Race
Race Sex Personal Care Dependent1 Mobility or Household Activity Dependent2
  65-69     70-74     75-79     80-84     85 & Over     65 & Over     65-69     70-74     75-79     80-84     85 & Over     65 & Over  
White Male 0.60 0.61 0.94 1.97 2.73 0.45 0.71 0.91 0.10 0.19 2.70 0.47
Female   0.45 0.64 0.69 1.23 1.68 0.40 0.84 0.91 1.59 1.67 2.01 0.62
Both 0.37 0.48 0.59 0.98 1.48 0.31 0.58 0.65 1.16 1.23 1.75 0.41
NonWhite Male 1.80 2.32 4.22 6.84 11.67 1.43 2.50 3.75 2.64 6.09 9.27 1.62
Female 1.81 2.02 3.26 3.78 8.08 1.16 2.68 3.04 4.27 5.12 8.24 1.90
Both 1.23 1.61 2.23 3.48 7.06 0.91 2.09 2.69 2.70 4.32 6.48 1.52
All Races   Male 0.58 0.60 0.98 1.96 2.66 0.43 0.67 0.87 0.97 1.79 2.62 0.45
Female 0.44 0.55 0.74 1.17 1.60 0.37 0.82 0.85 1.51 1.49 1.85 0.58
Both 0.37 0.44 0.62 0.94 1.43 0.30 0.57 0.63 1.08 1.13 1.61 0.40
SOURCE: 1984 National Health Interview Survey’s Supplement on Aging.
  1. Personal Care dependent includes bathing, dressing, toileting, transferring or eating. Individuals classified as personal care dependent may also be dependent in mobility or household activities but are counted only as personal care dependent.
  2. Mobility or household activity includes inside and outside mobility, meal preparation, grocery shopping, money management, housework and laundry, or taking medications. Individuals already classified and counted in this table as personal care dependent are excluded from this category.

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