Table 1.
Epidemiological characteristics of 649 BMC subjects by food sensitization.
| Variables # | Food Sensitization (N=240) |
Non-Food Sensitization (N=409) |
|---|---|---|
| N (%) | ||
| Maternal Race * | ||
| Black | 151 (63) | 221 (54) |
| White | 8 (3) | 31 (8) |
| Hispanic | 48 (20) | 100 (24) |
| Others | 33 (14) | 55 (13) |
| Maternal BMI (kg/m2) (pre-pregnancy) | ||
| <20 | 26 (11) | 35 (9) |
| 20–25 | 81 (34) | 154 (38) |
| 25–30 | 78 (33) | 129 (32) |
| >=30 | 55 (23) | 88 (22) |
| Gestational Diabetes | 14 (6) | 13 (3) |
| Household Income | ||
| <$30,000 | 106 (44) | 174 (43) |
| ≥$30,000 | 27 (11) | 64 (16) |
| unknown | 107 (45) | 171 (42) |
| Maternal Atopy | 89 (37) | 138 (34) |
| Paternal Atopy | 46 (20) | 66 (17) |
| Infant Sex (Male) * | 135 (56) | 194 (47) |
| Preterm (< 37 GWs) | 41 (17) | 75 (18) |
| Birth Season | ||
| Winter (Dec. to Mar.) | 81 (34) | 123 (30) |
| Spring (April to June) | 57 (24) | 109 (27) |
| Summer (July to Sep.) | 54 (23) | 103 (25) |
| Fall (Oct. to Nov.) | 48 (20) | 71 (17) |
| Maternal Smoking (post-natal) * | 31 (13) | 80 (20) |
| Breast Feeding * | ||
| Breast feeding only | 14 (6) | 27 (7) |
| Formula only | 45 (19) | 116 (29) |
| Both | 181 (75) | 264 (65) |
| Vitamin D Deficiency (25(OH)D<11ng/ml) | 116 (48) | 170 (42) |
| Wheezing | 34 (14) | 46 (11) |
| Eczema * | 121 (50) | 156 (38) |
| Food Allergy * | 13 (6) | 9 (2) |
| Mean ± SD | ||
| Age (yr) * | 2.08 ± 1.88 | 1.77 ± 1.65 |
| Cord Blood 25(OH)D (ng/ml) & | 12.52 ± 6.41 | 13.83 ± 8.18 |
#
Number of missing data for birth season and BMI is 3; Numbers of missing data for maternal smoking (post-natal), breast feeding, maternal and paternal atopy, and food allergy are 1, 2, 4, 22, and 22, respectively.
*
P-values of the associations between the variables and FS ≤0.05.
&
P=0.14 based on t-test of log-transformed 25(OH)D.