Table I.
Participant demographics of the CHILD REEGLE subset
| Characteristic | Sensitization to peanut, egg, or cow's milk at age 12 mo (n = 124) | Peanut dietary introduction by age 12 mo (n = 123) | Egg dietary introduction by age 12 mo (n = 129) |
|---|---|---|---|
| Characteristic, no. (%) | |||
| Yes | 27 (22) | 52 (42) | 98 (76) |
| No | 97 (78) | 71 (58) | 31 (24) |
| Sex at birth, no. (%) | |||
| Female | 52 (42) | 53 (43) | 56 (43) |
| Male | 72 (58) | 70 (57) | 73 (57) |
| Maternal self-reported race and ethnicity, no. (%) | |||
| Asian | 15 (12) | 12 (10) | 14 (11) |
| Black/African American | 0 (0) | 0 (0) | 0 (0) |
| Hispanic | 2 (1.5) | 2 (1.5) | 2 (1.5) |
| Indigenous | 7 (5.5) | 7 (5.5) | 7 (5) |
| Middle Eastern | 2 (1.5) | 2 (1.5) | 2 (1.5) |
| Other | 3 (2.5) | 3 (2.5) | 4 (3) |
| White | 95 (77) | 97 (79) | 100 (78) |
| Paternal self-reported race and ethnicity, no. (%) | |||
| Asian | 12 (10) | 10 (8) | 12 (9) |
| Black/African-American | 0 (0) | 0 (0) | 0 (0) |
| Hispanic | 1 (1) | 1 (1) | 1 (0.8) |
| Indigenous | 2 (1.5) | 1 (1) | 1 (0.8) |
| Middle Eastern | 2 (1.5) | 2 (2) | 2 (1.6) |
| Other | 9 (7) | 10 (8) | 10 (7.8) |
| White | 98 (79) | 99 (80) | 103 (80) |
| Moderate-to-severe eczema, no. (%) | |||
| Yes | 8 (6) | 6 (5) | 7 (5) |
| No | 116 (94) | 117 (95) | 122 (95) |
| Breast-feeding duration no. (%) | |||
| Did not breast-feed | 7 (6) | 10 (8) | 13 (10) |
| 0.5-6 mo | 29 (23) | 27 (22) | 28 (22) |
| 7-12 mo | 43 (35) | 42 (34) | 43 (33) |
| 13-24 mo | 45 (36) | 44 (36) | 45 (35) |
| Maternal stress self-reported at 6 mo (no.), mean ± SD∗ | 13 ± 7 | 13 ± 7 | 13 ± 7 |
| Predicted cell type proportions, mean ± SD | |||
| CD4+ T lymphocytes | 0.431 ± 0.0778 | 0.431 ± 0.0778 | 0.431 ± 0.0778 |
| Natural killer cells | 0.0802 ± 0.0365 | 0.0802 ± 0.0365 | 0.0802 ± 0.0365 |
| B lymphocytes | 0.192 ± 0.0686 | 0.192 ± 0.0686 | 0.192 ± 0.0686 |
| Monocytes | 0.166 ± 0.0699 | 0.166 ± 0.0699 | 0.166 ± 0.0699 |
| CD8+ T lymphocytes | 0.156 ± 0.0478 | 0.156 ± 0.0478 | 0.156 ± 0.0478 |
∗
The maternal stress scale comprises scores from the Perceived Stress Scale. Individual scores are integers ranging from 0 to 40. Higher scores indicate that mothers reported higher perceived stress.