borderline significantp = 0.06
colonization subgroup analysis revealed the pooled estimates of 51% (95% CI: 0.46–0.57) with I2= 98.7%, for clinical and 39% (95% CI: 0.27–0.52) with I2= 94.5%, for colonization studies, with a borderline significant variation ( p = 0.06), which suggested a trend toward significant that should be confirmed with further studies.