Table 1. Features of the study population, stratified by mcr-1-positive and -negative children, Chaco, Bolivia, September–October 2016.
| Characteristics | Total (n/N) |
% |
mcr-1-negative (n/N) |
% |
mcr-1-positive (n/N) |
% | P value |
|---|---|---|---|---|---|---|---|
| Sex | |||||||
| Male | 158/337 | 47 | 100/208 | 48 | 58/129 | 45 | 0.58 |
| Female | 179/337 | 53 | 108/208 | 52 | 71/129 | 55 | |
| Age (years) | |||||||
| Mean (95% CI) | 9.3 (9.1–9.4) | NA | 9.3 (9.1–9.5) | NA | 9.2 (9.0–9.5) | NA | 0.81 |
| Median (IQR) | 9 (8–10) | NA | 9 (8–10) | NA | 9 (8–10) | NA | |
| Prior antibiotic usea | 4/337 | 1 | 3/208 | 1 | 1/129 | 1 | 0.58 |
CI: confidence interval; IQR: interquartile range; NA: not applicable.
aIn the last 15 days.