Table 1 Demographic characteristics of participants at each study visit
| Â | Preschool | Age 5 | Age 7 | Age 9 | Age 11 | Total | Full Case Analysis |
|---|---|---|---|---|---|---|---|
N | 505 | 513 | 479 | 445 | 362 | 564 | 299 |
Mean age (SD) | 3.25 (0.99) | 4.43 (0.50) | 6.52 (0.51) | 8.52 (0.51) | 10.56 (0.58) | - | - |
Sex (% male) | 238 (47.13) | 244 (47.56) | 226 (47.18) | 207 (46.52) | 165 (45.58) | 272 (48) | 130 (43.48) |
Maternal years of education at prenatal visit (SD) | 11.89 (2.18) | 11.9 (2.16) | 11.87 (2.14) | 11.89 (2.13) | 11.96 (1.95) | 11.89 (2.16) | 11.94 (1.83) |
Child birthweight in grams (SD) | 3376 (469.44) | 3379 (469.17) | 3388 (479.98) | 3371 (481.84) | 3398 (481.07) | 3371 (474.10) | 3371 (477.99) |
Early life stress composite score | 0.30 (0.12) | 0.30 (0.12) | 0.30 (0.12) | 0.30 (0.12) | 0.30 (0.13) | 0.30 (0.12) | 0.30 (0.12) |
Cotininea | -2.82 (1.65) | -2.82 (1.67) | -2.86 (1.60) | -2.84 (1.57) | -2.71 (1.61) | -2.81 (1.69) | -2.70 (1.66) |
Latinx (%) | 315 (62) | 317 (62) | 296 (62) | 272 (61) | 227 (63) | 355 (63) | 183 (61) |
Black (%) | 190 (38) | 196 (38) | 183 (38) | 173 (39) | 135 (37) | 209 (37) | 116 (39) |