Table 4.
Unadjusted Associations between Having Siblings in Household and Microbiota Profiles by Mode of Delivery*
| Groups and microbiota profiles | RRR (95% CI) | P-value |
|---|---|---|
| Nasal microbiota | ||
| Vaginal delivery (n=66) | ||
| Moraxella-dominant profile | 12.7 (3.31–48.5) | <0.001 |
| Corynebacterium/Dolosigranulum-dominant profile | Reference | - |
| Mixed profile | 0.25 (0.03–2.41) | 0.23 |
| C-section (n=39) | ||
| Moraxella-dominant profile | 10.3 (2.00–52.7) | 0.005 |
| Corynebacterium/Dolosigranulum-dominant profile | Reference | - |
| Mixed profile | 1.83 (0.22–15.3) | 0.58 |
| Fecal microbiota | ||
| Vaginal delivery (n=66) | ||
| Escherichia-dominant profile | Reference | - |
| Bifidobacterium-dominant profile | 1.59 (0.49–5.14) | 0.44 |
| Enterobacter-dominant profile | 1.09 (0.31–3.88) | 0.89 |
| C-section (n=39) | ||
| Escherichia-dominant profile | Reference | - |
| Bifidobacterium-dominant profile | 4.28 (0.80–22.9) | 0.09 |
| Enterobacter-dominant profile | 1.67 (0.28–9.82) | 0.57 |
RRR, relative risk ratio; CI, confidence interval
*
Multivariable-adjustment was not performed given the decreased sample sizes