TABLE 2.
Correlates of phylum relative abundance in multivariate analysesa
| Taxon and parameter | n | β (%) (95% CI) | P valueb | P value adj.c |
|---|---|---|---|---|
| Actinobacteria (%) | ||||
| Head circumference (cm) | 52 | 0.30 (0.02, 0.57) | 0.0327 | 0.0719 |
| Age (mo) | 52 | 0.14 (−0.05, 0.33) | 0.1439 | 0.1759 |
| Female | 52 | −0.39 (−1.23, 0.45) | 0.3660 | 0.4026 |
| Bacteroidetes (%) | ||||
| Serum zinc (μmol/liter) | 38 | 1.41 (0.21, 2.61) | 0.0211 | 0.0719 |
| Age (mo) | 38 | 0.51 (−0.83, 1.85) | 0.4570 | 0.4570 |
| Female | 38 | 4.63 (−1.40, 10.66) | 0.1320 | 0.1759 |
| Firmicutes (%) | ||||
| Iron (mg)d | 48 | 7.50 (1.98, 13.03) | 0.0078 | 0.0572 |
| Log energy (kcal)d | 48 | −3.81 (−8.27, 0.65) | 0.0944 | 0.1731 |
| Age (mo) | 48 | 1.34 (0.16, 2.53) | 0.0264 | 0.0719 |
| Female | 48 | 4.05 (−1.17, 9.27) | 0.1280 | 0.1759 |
| Proteobacteria (%) | ||||
| Weight-for-length Z-score (WLZ)e | 51 | 5.33 (1.25, 9.41) | 0.0104 | 0.0572 |
a
Analyses were performed using complete case analysis; similar results were found using missing indicators with median imputation (not shown).
b
Boldface P values are statistically significant (P < 0.05).
c
P value adj., adjusted P value corrected for multiple comparisons using the Benjamini-Hochberg false discovery rate (FDR).
d
Iron intake residual adjusted for energy.
e
Not adjusted for age and sex, as calculation of WLZ incorporates age and sex.