Table 1. Factors associated with NBNA score.
NBNA Score | Low NBNA* | ||||
ß (95%CI) | p-value | OR(95%CI) | p-value | ||
Lg Mn quartiles | |||||
<P25(Mn<2.7 µg/L) | 0 | 1.0 | |||
P25-50(Mn: 2.7–4.0 µg/L) | 0.1 (−0.1, 0.3) | 0.482 | 1.0 (0.3, 4.1) | 0.985 | |
P50-75(Mn: 4.1−9.0 µg/L) | 0.0 (−0.2, 0.2) | 0.961 | 1.7 (0.5, 5.9) | 0.396 | |
≥P75(Mn≥9.1 µg/L) | −1.2 (−1.4, −1.0) | <0.001 | 8.0 (2.8, 23.0) | <0.001 | |
Lg Se quartiles | |||||
<P25(LgSe<1.7 µg/L) | 0 | 1.0 | |||
P25-50(LgSe: 1.7–1.8 µg/L) | 0.9 (0.7, 1.1) | <0.001 | 0.23 (0.14, 0.38) | <0.001 | |
P50-75(LgSe: 1.8–1.9 µg/L) | 1.2 (1.0, 1.4) | <0.001 | 0.10 (0.05, 0.20) | <0.001 | |
≥P75(LgSe≥1.9 µg/L) | 1.1 (0.9, 1.4) | <0.001 | 0.10 (0.05, 0.22) | <0.001 | |
Maternal age (years) | 0.0 (−0.1, 0.0) | 0.002 | 1.0 (1.0, 1.1) | 0.457 | |
Gestational age (days) | 0.0 (0.0, 0.0) | 0.265 | 1.0 (1.0, 1.0) | 0.852 | |
Birth weight | 0.0(0.0, −0.0) | 0.192 | 1.0 (1.0,1.0) | 0.970 | |
Gender | |||||
Male | 0 | 1.0 | |||
Female | −0.1 (−0.3, 0.1) | 0.295 | 1.1 (0.6, 2.1) | 0.687 | |
Household incomes(Yuan/m/per person) | |||||
<2000 | 0 | 1.0 | |||
2000–5000 | −0.1 (−0.3, 0.1) | 0.407 | 1.0 (0.5, 2.1) | 0.927 | |
>5000 | −0.5 (−0.7, −0.2) | <0.001 | 1.9 (0.9, 4.0) | 0.100 | |
Maternal education | |||||
Middle school or lower | 0 | 1.0 | |||
High scool | −0.1 (−0.4, 0.1) | 0.295 | 1.6 (0.7, 3.9) | 0.313 | |
Bachelor degree | −0.2 (−0.3, 0.0) | 0.103 | 1.4 (0.6, 2.9) | 0.446 | |
Higher than Bachelor degree | −0.7 (−1.1, −0.3) | 0.001 | 4.9 (1.7, 14.0) | 0.003 | |
Paternal education | |||||
Middle school or lower | 0 | 1.0 | |||
High scool | 0.1 (−0.2, 0.3) | 0.579 | 0.9 (0.3, 2.6) | 0.805 | |
Bachelor degree | −0.3 (−0.5, −0.1) | 0.006 | 1.7 (0.8, 3.8) | 0.175 | |
Higher than Bachelor degree | −0.5 (−0.9, −0.2) | 0.004 | 4.6 (1.6, 13.0) | 0.004 | |
Maternal occupation | |||||
White collar | 0 | 1.0 | |||
Technician | 0.0 (−0.3, 0.3) | 0.912 | 1.2 (0.4, 3.8) | 0.793 | |
Blue collar | −0.2 (−0.4, 0.1) | 0.133 | 1.7 (0.6, 4.5) | 0.313 | |
Housewife | −0.6 (−1.3, 0.2) | 0.175 | 3.3 (0.3, 31.0) | 0.302 | |
Paternal occupation | |||||
White collar | 0 | 1.0 | |||
Technician | 0.3 (0.0, 0.6) | 0.032 | 0.7 (0.2, 2.3) | 0.522 | |
Blue collar | 0.1 (−0.1, 0.3) | 0.467 | 1.0 (0.5, 2.2) | 0.999 | |
Unemployed | −0.2 (−0.6, 0.2) | 0.265 | 1.3 (0.4, 4.6) | 0.700 |
low NBNA: NBNA Score<37.