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Table 1 Table of excluded studies

From: Intestinal dysbiosis in preterm infants preceding necrotizing enterocolitis: a systematic review and meta-analysis

Study Reason for exclusion
Schwiertz 2003 [57] A study of 29 preterm infants by PCR-DGGE analysis of which only one case of NEC was observed. No comparison of NEC and controls.
Bjorkstorm 2009 [58] Only stool cultures and fecal calprotectin were measured.
LaTuga 2011 [59] A study of eleven ELBW infants was excluded as there were no direct comparison of NEC and controls.
Morowitz 2011 [49] Community genomic analysis at the strain level in one premature infant was excluded because the study did not compare NEC and controls.
Sharon 2013 [60] Time shifts in community genomics was excluded because the study did not compare NEC and controls.
Carlisle 2013 [10] A review was excluded.
Grishin 2013 [61] A review was excluded.
Torraza 2013 [56] A review was excluded.
Taft 2014 [55] Description of the microbiome in preterm infants without NEC or sepsis and not a comparison of NEC with controls.
Raveh-Sadka 2015 [62] Not a comparison of NEC with controls.