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. Author manuscript; available in PMC: 2025 Sep 13.
Published in final edited form as: Community Sci. 2024 Sep 13;3(3):e2024CSJ000088. doi: 10.1029/2024csj000088

Table 3: Demographic summary.

The 2017 Environmental Health Survey used community-based participatory action research strategies and snowball sampling of 100 adults in Knights Landing, California. American Community Survey results are 2017 5-year estimates for Knights Landing Census Designated Place (US Census Bureau 2017). Categorical data are presented as the proportion of respondents with 95% binomial confidence intervals (CI). Significant differences between the Knights Landing and American Community Survey samples are noted as: * p = 0.05.

Demographics Environmental Health Survey American Community Survey
Sample (n)= adults in Knights
Landing recruitment zones
Sample= randomly contacted
households in Knights Landing
Census Designated Place
% 95% CI n % 95% CI n
Age #
sample = age ≥18 for Environmental Health Survey or all ages American Community Survey
18 - 19 3% (0, 7) 3 -- -- --
20 - 24 5% (1, 10) 5 11% (2, 20) 110
25 - 44 43% (32, 52) 42 18% (8, 28) 187
45 - 64 36% (25, 45) 35 25% (12, 38) 259
65 and older 12% (5, 19) 12 18% (5, 31) 187
Gender
Sample = age ≥18 for Environmental Health Survey and American Community Survey
Male 44% (34, 54) 44 41% (31, 51) 311
Female 56% (46, 66) 56 59% (49, 69) 441
Race/Ethnicity #
sample = age ≥18 for Environmental Health Survey and all ages American Community Survey
White/Caucasian 26% (17, 35) 25 25% (8, 42) 252
Latino/a or Hispanic 68% (59, 77) 67 70% (50, 90) 715
Asian 3% (0, 7) 3 6% (0, 15) 61
African-American, Black 1% (0, 3) 1 0% (0, 2) 0
Native American, American Indian, or Alaska Native 1% (0, 3) 1 0% (0, 2) 0
Education Attainment #
sample = age ≥25 for Environmental Health Survey and American Community Survey
No Formal Education 2% (0, 5) 2 -- -- --
Grade or Middle School (Grades 1-8) 32% (23, 41) 31 27% (9, 45) 169
High School or Equivalent 35% (26, 45) 34 22% (15, 29) 141
Some College or Associate’s Degree 18% (10, 25) 17 24% (10, 38) 153
4-year College or University Graduate 3% (0, 7) 3 10% (0, 20) 62
Graduate or Professional School 1% (0, 3) 1 4% (0, 9) 26
Vocational, Business, or Trade School 1% (0, 3) 1 -- -- --
Annual Household Income *
Less than $15,000 32% (22, 42) 30 17% (2, 32) 59
$15,000 - $24,999 22% (14, 30) 20 15% (0, 30) 51
$25,000 - $49,999 29% (20, 38) 27 39% (22, 56) 132
$50,000 - $99,999 10% (4, 16) 9 20% (2, 38) 69
$100,000 or more 7% (2, 12) 6 8% (0, 16) 28
Country of Birth #
sample = age ≥18 for Environmental Health Survey or all ages American Community Survey
Native-born (US) 46% (36, 56) 46 64% (50, 78) 663
Foreign-born 54% (43, 65) 53 36% (22, 50) 365
 Latin America % of foreign-born 94% ⊥ (88, 100) 50 93% (82, 100) 338
 Asia % of foreign-born 6% (0, 12) 3 7% (0, 18) 27
Occupations #
sample = age ≥18 for Environmental Health Survey or age≥16 for American Community Survey
Unemployed 22% (14, 30) 21 10% (3, 17) 81
Not in Labor Force Includes retirees and those with disabilities 12% (5, 19) 11 40% (26, 54) 319
Employed 66% (56, 76) 63 50% (36, 64) 386
 Agricultural Labor 41% (31, 51) 34 9% (6, 12) 36
 % of employed Agriculture Agriculture, fishing, forestry, hunting, and mining
 Non-Agricultural Labor 18% (10, 26) 14 27% (8, 46) 104
 % of employed Custodial and construction Construction, manufacturing, transportation, warehousing, and utilities
 Other 41% (31, 51) 25 64% (59, 69) 246
 % of employed
#

Direct comparisons could not be made for variables with different age thresholds for the Environmental Health Survey responses and the American Community Survey.

⊥

The only Latin America country of origin was Mexico for the Knights Landing foreign-born respondents.