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Table 1 Demographic characteristics of participants by community at Time I and Time II

From: A comparison of arsenic exposure in young children and home water arsenic in two rural West Texas communities

  Time I
(N = 252)
Time II
(N = 204)
Variable Community 1 Community 2 Total Community 1 Community 2 Total
N 102 150 252 87 117 204
Age, M(SD) 8.19 (± 1.86) 7.89 (± 1.95) 8.01 (± 1.92) 8.67 (±1.83) 8.50 (±1.87) 8.57 (±1.85)
Females % 42.2% 56.0% 50.4% 37.9% 53.8% 47.1%
Mother’s Ethnicity n (%) 72/102 (71%) 115/150 (77%) 187/252 (74%) 59/87 (68%) 91/117 (78%) 150/204 (74%)
Hispanic/Mexican-American 98.6% 98.3% 98.4% 98.3% 100.0% 99.3%
White 1.4% 1.7% 1.6% 1.7% 0.0% 0.7%
Father’s Ethnicity n (%) 70/102 (69%) 109/150 (73%) 179/252 (71%) 57/87 (66%) 88/117 (75%) 146/204 (72%)
Hispanic/ Mexican-American 100.0% 93.6% 96.1% 100% 94.3% 95.9%
African American 0.0% 1.80% 1.1% 0.0% 1.1% 0.7%
Pacific Islander 0.0% 0.9% 0.6% 0.0% 0.0% 0.0%
White 0.0% 3.7% 2.2% 0.0% 4.5% 2.7%
Mother’s Education n (%) 73/102 (72%) 115/150 (77%) 188/252 (75%) 60/87 (69%) 91/117 (78%) 151/204 (74%)
Completed grades 1–6 5.9% 12.2% 10.6% 8.3% 14.3% 11.9%
Some high school 9.8% 20.9% 18.1% 16.7% 19.8% 18.5%
Graduated high school 30.4% 18.3% 27.7% 40.0% 17.6% 26.5%
Some college 19.6% 40.9% 35.7% 31.7% 39.6% 36.4%
Graduated college 2.9% 6.1% 5.3% 3.3% 6.6% 5.3%
Some graduate school 2.0% 0.0% 1.1% 0.0% 0.0% 0.0%
Completed graduate school 0.9% 0.0% 0.5% 0.0% 1.1% 0.7%
More than graduate school 0.0% 0.9% 0.5% 0.0% 1.1% 0.7%
Other (Certification) 0.0% 0.9% 0.5% 0.0% 0.0% 0.0%
Household Income n (%) 61/102 (60%) 97/150 (65%) 158/252 (63%) 49/87 (56%) 76/117 (65%) 125/204 (61%)
Median $18,000 $18,000 $18,000 $18,000 $18,500 $18,000
Household Family Size n (%) 74/102 (73%) 116/150 (77%) 190/252 (75%) 61/87 (70%) 92/117 (79%) 153/204 (75%)
M (SD) 5.23 (±1.41) 5.14 (±1.44) 5.17 (± 1.42) 5.31 (±1.48) 5.20 (±1.50) 5.24 (±1.49)