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Table 1 Overview of operational taxonomical unit (OTU) counts in each sample type

From: Evaluating gut microbiota profiles from archived fecal samples

Sample groups No. of samples Mean no. contigs Min no. contigs Max no. contigs Mean OTUs >  9 counts Mean OTUs >  4 counts Mean OTUs >  0 counts Samples > 200 OTUs in total (%) Samples > 500 OTUs in total (%)
iFOBT 49 84,861 5788 386,376 43 72 515 47 (96%) 46 (94%)
Archived (NORCCAP) 52 64,830 238 925,009 34 56 483 42 (81%) 36 (69%)
Fresh 8 314,252 87,303 751,297 109 158 770 8 (100%) 8 (100%)
Fresh (room temp 48 h) 8 286,571 56,485 646,383 79 120 547 8 (100%) 8 (100%)
ENC 6 151 21 2129 0 0 8 0 (0%) 0 (0%)
Negative controls 12 395 1 4486 0 0 10 0 (0%) 0 (0%)