TABLE 2.
Total counts, prevalence, and proportions of amoxicillin-resistant bacteria in children with and without amoxicillin use in the previous 3 months
| Antibiotic use | Median (range) total count (CFU/ml) | No. (%) of children harboring ampicillin-resistant bacteria | Median (range) count (CFU/ml) of amoxicillin-resistant bacteria | Median (range) % microbiota resistant to amoxicillin |
|---|---|---|---|---|
| − | 5.5 × 106 (1.0 × 106-7.8 × 107) | 100 (25) | 1.3 × 105 (1.0 × 103-7.2 × 105) | 2.4 (0.1-14.3) |
| + | 3.2 × 106 (1.2 × 106-3.0 × 107) | 100 (15) | 6.0 × 105a (5.1 × 104-2.8 × 106) | 10.9a (0.8-97.3) |
a
P < 0.01 (Mann-Whitney test).