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. Author manuscript; available in PMC: 2009 Oct 31.
Published in final edited form as: Ann Epidemiol. 2008 May 27;18(7):531–537. doi: 10.1016/j.annepidem.2008.03.006

Table 2. Income, Income Slope and Income Sources by Age, Sex, and Race/Ethnicity Alameda County Study, 1965–1994.

-- N or Mean (% or S.D.) --

Age
Sex
Race/Ethnicitye
50–64 (n=584)
65–79 (n=430)
80+ (n=113)
Male (n=512)
Female (n=615)
White (n=945)
Black (n=90)
Other (n=92)
Mean Incomea
 ($1,000) 70.75 (39.77) 68.19 (41.92) 61.42 (45.36) 73.06 (40.16) 65.33 (41.82) 71.89 (42.22) 43.13 (26.78) 62.70 (32.56)
Income Slope b
  ($1,000) 0.84 (1.67) − 0.09 (0.86) − 0.26 (0.83) 0.57 (1.50) 0.22 (1.35) 0.44 (1.48) − 0.12 (1.12) 0.24 (1.03)
Profit Income c
 in:
 0 Waves 325 (55.7) 235 (54.7) 49 (43.4) 207 (40.4) 402 (65.4) 473 (50.1) 69 (76.7) 67 (72.8)
 1 wave 135 (23.1) 102 (23.7) 23 (20.4) 136 (26.6) 124 (20.2) 238 (25.2) 12 (13.3) 10 (10.9)
 2–3 Waves 124 (21.2) 93 (21.6) 41 (36.3) 169 (33.0) 89 (14.5) 234 (24.8) 9 (10.0) 15 (16.3)
Benefit Income d
 in:
 0 Waves 490 (83.9) 358 (83.3) 100 (88.5) 431 (84.2) 517 (84.1) 812 (85.9) 59 (65.6) 77 (83.7)
 1 wave 75 (12.8) 51 (11.9) 8 (7.1) 62 (12.1) 72 (11.7) 101 (10.7) 19 (21.1) 14 (15.2)
 2–3 Waves 19 (3.3) 21 (4.9) 5 (4.4) 19 (3.7) 26 (4.2) 32 (3.4) 12 (13.3) 1 (1.1)
a

Mean annual household income, 1965–1983. Based on incomes reported in 1965/74/83, adjusted to 1999 consumer price.

b

Yearly household income change, 1965–1999. Based on incomes reported in 1965/74/83/94/99, adjusted to 1999 consumer price.

c

Number of waves (1965/74/83) in which profit, rental or investment income were reported.

d

Number of waves (1965/74/83) in which unemployment, disability or welfare benefits were reported.

e

‘Hispanics’ are classified in the 'Other' category.

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