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. Author manuscript; available in PMC: 2015 Feb 27.
Published in final edited form as: J Expo Sci Environ Epidemiol. 2009 Apr 8;20(3):237–244. doi: 10.1038/jes.2009.11

Table 3.

Comparisons of category means (95% confidence intervals) for socioeconomic measures adjusted for county and urban status using two distance classes

Measure 0–2000 (ft) >2k (ft) P-value for buffer
Socioeconomic status
  MHIa* 47.4 (44.4–50.5) 43.9 (43.2–44.6) 0.025
  PCIa 21.1 (19.6–22.5) 20.4 (20.0–20.7) 0.379
  % Poverty* 7.23 (6.11–8.56) 9.90 (9.57–10.24) 0.001
  % High school education* 84.5 (82.8–86.3) 82.4 (82.0–82.8) 0.015
  % College education 31.0 (29.0–33.1) 30.3 (29.8–30.8) 0.503
  % Employed 60.2 (58.6–62.0) 58.9 (58.5–59.3) 0.108
Demographics
  % White* 95.7 (92.4–99.2) 91.5 (90.8–92.3) 0.014
  % <18 years 24.7 (23.7–25.8) 24.9 (24.7–25.2) 0.757
  % >64 years 13.5 (12.5–14.6) 13.7 (13.5–14.0) 0.651
Housing characteristics
  % Owner occupied* 79.3 (75.6–83.2) 71.8 (71.0–72.6) <0.001
  Year the house was built* 1963 (1962–1965) 1959 (1959–1960) <0.001
  Year moved in* 1990 (1990–1991) 1991 (1991–1991) 0.035
  Value of house* 92.5 (83.0–101.9) 102.4 (100.1–104.7) 0.041
  Contract rent ($) 478 (444–511) 464 (457–470) 0.417
a

Values in thousands of dollars.

*

P<0.05 (in bold).