Table 3.
Multivariate regression analysis results: sex stratified by age.
| Age Interval (y) | Folate | Cobalamin | ||||||
|---|---|---|---|---|---|---|---|---|
| Estimate (β) | Std. Error | t-Value | p-Value | Estimate | Std. Error | t-Value | p-Value | |
| 0–1 | 0.538 | 0.486 | 1.107 | 0.269 | 19.930 | 11.569 | 1.723 | 0.085 |
| 1–5 | 1.406 | 0.431 | 3.265 | 0.001 | 3.561 | 7.821 | 0.455 | 0.649 |
| 6–12 | 0.270 | 0.230 | 1.174 | 0.240 | 5.748 | 4.338 | 1.325 | 0.185 |
| 13–18 | 1.383 | 0.289 | 4.791 | <0.001 | 40.602 | 4.665 | 8.703 | <0.001 |
| 0–18 | 0.703 | 0.172 | 4.094 | <0.001 | 14.479 | 3.213 | 4.506 | <0.001 |
After partition into age intervals, the analysis was carried out with non- transformed folate and cobalamin values. All calculations adjusted for age, BMI-SDS, and SES. Non- transformed folate and cobalamin values used for calculations. BMI-SDS = body mass index standard deviation score; SES = socioeconomic status.