Maternal baseline characteristics | Colonized N = 98 n (%) | Not colonized N = 400 n (%) | P-value |
---|---|---|---|
Age (years) | Â | Â | Â |
   18-34 | 64 (65) | 234 (59) | 0.22 |
   ≥ 35 | 34 (35) | 166 (41) |  |
Gravidity/parity | Â | Â | Â |
   Nulligravida | 25 (26) | 125 (31) | 0.27 |
   Nullipara | 19 (18) | 53 (13) |  |
   Multipara | 54 (55) | 222 (56) |  |
Previous preterm birth | 4 (4) | 17 (4) | 0.94 |