Table 1.
Characteristics of the study cohort compared to the parent PROGRESS cohort and the general Mexican population
| Participant Characteristics | Mexican population [44] | Selected study cohort (n = 500) | PROGRESS families not in the selected cohort (n = 260) |
|---|---|---|---|
| Continuous variables | |||
| Maternal age (years) | 26.9 ± 5.5 | 27.3 ± 5.3 | |
| Maternal 2nd trimester blood Pb, (median (IQR), ug/dL) | 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 | |||
| Maternal education | |||
| 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 | |||
| 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 %) |