TABLE 3

Alpha-diversity measures for each gastrointestinal locationa

GI sample typeValues
No. of OTUsPhylogenetic diversityShannon indexSimpson’s reciprocal indexEquitability
Gastric mucosa (n = 36)135 ± 66c26.9 ± 12.8c3.04 ± 1.02d 12 ± 10.2b0.62 ± 0.15cd
Duodenum (n = 3)92 ± 13c14 ± 1.7d1.87 ± 0.98d 3.7 ± 3.7b0.41 ± 0.21d
Duodenal mucosa (n = 2)120 ± 0c23.2 ± 2.7cd2.85 ± 0.02d 6.4 ± 0.3b0.59 ± 0.00cd
Jejunum (n = 4)118 ± 16c18.2 ± 4.2cd3.06 ± 0.40cd9.4 ± 4.3b0.64 ± 0.07bcd
Jejunal mucosa (n = 3)126 ± 25c21.4 ± 7.2cd3.22 ± 0.27bcd11.4 ± 2.7b0.67 ± 0.03abc
Ileum (n = 81)94 ± 42c15.8 ± 6.3d2.72 ± 0.89d10.2 ± 8.3b0.60 ± 0.14cd
Ileal mucosa (n = 91)128 ± 54c24.1 ± 9.6c3.02 ± 0.86d11.5 ± 9.8b0.62 ± 0.14cd
Cecum (n = 52)213 ± 81b35.7 ± 10.3b4.02 ± 0.83bc30.3 ± 24.5a0.75 ± 0.11b
Cecal mucosa (n = 18)282 ± 51a42.9 ± 7.3ab4.61 ± 0.43a42.8 ± 18.5a0.82 ± 0.05a
Colon (n = 91)221 ± 66b37.7 ± 9b4.23 ± 0.53ab33.2 ± 22.6a0.79 ± 0.06ab
Colonic mucosa (n = 48)210 ± 90b37.2 ± 12b4.05 ± 0.74abc30.9 ± 26.9a0.76 ± 0.09ab
Fecal (n = 510)255 ± 73a44.1 ± 11.7a4.41 ± 0.65a40.6 ± 29.2a0.80 ± 0.08a
  • a Different lowercase letters in each column indicate significant differences (P < 0.05). Data represent means ± standard deviations.