Table 1 Maternal demographics according to fluoride sample
From: Urinary fluoride levels and metal co-exposures among pregnant women in Los Angeles, California
|  | First Trimester Sample (N = 293) | Third trimester sample (N = 490) |
|---|---|---|
Age at Consent (yrs; M, SE) | 28.73 (0.34) | 28.88 (0.27) |
Pre-pregnancy BMI (freq., %) | ||
 Underweight | 9 (3.1) | 13 (2.7) |
 Normal | 84 (28.7) | 146 (29.8) |
 Overweight | 93 (31.7) | 154 (31.4) |
 Obese | 107 (36.6) | 177 (36.2) |
Race (freq., %) a | ||
 White, non-Hispanic | 19 (6.5) | 30 (6.2) |
 Black, non-Hispanic | 29 (9.9) | 56 (11.5) |
 Hispanic | 235 (80.2) | 383 (78.8) |
 Multiracial, non-Hispanic | 4 (1.4) | 7 (1.4) |
 Other, non-Hispanic | 6 (2.0) | 10 (2.1) |
Ethnicity (freq., %) a | ||
 Non-Hispanic/Latino | 58 (19.8) | 103(21.2) |
 Hispanic or Latino | 235 (80.2) | 383 (78.8) |
Education (freq., %) a | ||
 < High School | 71 (24.2) | 122 (25.1) |
 High School | 83 (28.3) | 146 (30) |
 Some college/technical school | 87 (29.7) | 129 (26.5) |
 4-years of college | 34 (11.6) | 57 (11.7) |
 Some graduate training after college | 18 (6.1) | 32 (6.6) |
Maternal Ethnicity by Nativity (freq., %) b | ||
 Non-Hispanic | 58 (19.9) | 103 (21.7) |
 US-Born Hispanic | 104 (35.6) | 169 (35.6) |
 Non-US-Born Hispanic | 130 (44.5) | 203 (42.7) |
Birth Order c | ||
 1st | 100 (34.2) | 169 (35.8) |
 2nd | 89 (30.5) | 141 (29.9) |
 3rd | 57 (19.5) | 91 (19.3) |
 4th | 29 (9.9) | 45 (9.5) |
 5th | 10 (3.4) | 14 (3) |
 6th | 7 (2.4) | 12 (2.5) |