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. 2009 Aug 4;117(12):1925–1931. doi: 10.1289/ehp.0900925

Table 3.

Selected characteristics of participants and households, by city and ethnic group [n (%)].a

Los Angeles
Elizabeth
Houston
Description Hispanic White Hispanic White Hispanic White
Sex
 Male 8 (63) 14 (71) 9 (78) 4 (75) 4 (75) 9 (33)
 Female 15 (60) 29 (59) 45 (67) 11 (64) 40 (62) 27 (41)
Income ($US)
 < 25,000 7 (29) 8 (75) 23 (70) 4 (50) 30 (53) 5 (40)
 25,000–49,999 4 (75) 17 (53) 6 (100) 3 (67) 10 (90) 14 (50)
 50,000–74,999 10 (70) 7 (86) 5 (80) 4 (100) 3 (100) 10 (30)
 > 75,000 2 (100) 11 (54) 3 (100) 3 (67) 0 6 (33)
 Don’t know 0 0 13 (46) 1 (0) 1 (0) 1 (0)
 Refused to answer 0 0 3 (67) 0 0 0
Building type
 Mobile/trailer 1 (100) 2 (50) 0 0 22 (50) 2 (0)
 Single-family detached 15 (60) 22 (59) 9 (78) 7 (57) 20 (16) 34 (41)
 Single-family attached 0 3 (0) 4 (50) 1 (100) 0 0
 Apartment 7 (71) 16 (81) 38 (71) 7 (71) 2 (50) 0
Building age (years)
 < 5 4 (100) 12 (83) 2 (100) 0 4 (50) 0
 5–15 0 2 (50) 4 (75) 0 7 (29) 7 (29)
 > 15 17 (47) 29 (55) 24 (67) 14 (71) 24 (79) 27 (44)
 Don’t know 2 (100) 0 24 (67) 1 (0) 9 (56) 2 (0)
Building AER (per hour)
 < 0.5 1 (0) 9 (100) 5 (80) 2 (100) 17 (53) 22 (73)
 0.5–1.0 9 (56) 15 (80) 21 (90) 4 (50) 14 (71) 12 (83)
 > 1.0 13 (62) 19 (95) 26 (81) 8 (62) 8 (62) 2 (50)
< 1 km from industry 3 (67) 6 (67) 20 (65) 9 (78) 42 (64) 32 (41)
Total participants 23 43 54 15 44 36
a

Data are presented as number of participants (percentage of participants sampled twice).