Table 3.
Maternal variables and time elapsed associate with the stability of breast milk microbiota and infant gut microbiota over time.
| Breast Milk | OR (95% CI)a,b | |
|---|---|---|
| Cluster switching degree 1 | Clustering switching degree 2 | |
| Days postpartum of last sample collected | 1.03 (1.00–1.07) | 1.16 (1.11–1.22) |
| Maternal pre-pregnancy BMI | 1.86 (0.83–4.17) | 4.55 (2.22–9.36) |
| Maternal age | 0.61 (0.32–1.15) | 2.14 (1.05–4.36) |
| Prenatal antibiotics | 915.08 (0.08–11,075,210) | 1051930.57 (73.01–15,156,890,000) |
| aModel adjusted for days postpartum of last sample collected, maternal pre-pregnancy BMI, maternal age, and prenatal antibiotic exposure | ||
| bNo cluster switching as reference level | ||
| Infant Stool | OR (95% CI)a,b | |
| Cluster switching degree 1 | Clustering switching degree 2 | |
| Infant age at last sample collection | 0.98 (0.95–1.01) | 1.07 (1.02–1.12) |
| Maternal age | 0.68 (0.45–1.02) | 0.75 (0.53–1.06) |
| Prenatal antibiotics | 167.79 (1.70–16,598) | 4.40 (1.04–185.50) |
a
Model adjusted for days postpartum of last sample collected, maternal age, and prenatal antibiotic exposure.
b
No cluster switching as reference level.