From: Toddler temperament and prenatal exposure to lead and maternal depression
Participant Characteristics | Mexican population [44] | Selected study cohort (n = 500) | PROGRESS families not in the selected cohort (n = 260) |
---|---|---|---|
Continuous variables | Â | Â | Â |
Maternal age (years) |  | 26.9 ± 5.5 | 27.3 ± 5.3 |
Maternal 2nd trimester blood Pb, (median (IQR), ug/dL) | Â | 2.8 (2.7) | 2.8 (2.4) |
Maternal postpartum tibia Pb (mean ± SD, ug/g bone mineral) |  | 2.6 ± 8.6 | 2.7 ± 8.3 |
Maternal postpartum patella Pb (mean ± SD, ug/g bone mineral) |  | 4.9 ± 8.9 | 4.3 ± 8.0 |
Maternal EPDS score, 2nd or 3rd trimester (mean ± SD) |  | 8.3 ± 5.7 | 8.9 ± 6.0 |
Categorical variables | Â | Â | Â |
Maternal education | Â | Â | Â |
 More than high school |  | 117 (23.4 %) | 60 (23.1 %) |
 High school |  | 171 (34.2 %) | 104 (40.0 %) |
 Less than high school |  | 212 (42.4 %) | 96 (36.9 %) |
Socioeconomic index | Â | Â | Â |
 High | 21.2 % | 46 (9.2 %) | 33 (12.7 %) |
 Middle | 53.7 % | 177 (35.4 %) | 105 (40.4 %) |
 Low | 25 % | 277 (55.4 %) | 122 (46.9 %) |