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Table 2 Prevalence of Bifidobacterium group and species in faeces and duodenal biopsies of children

From: Imbalances in faecal and duodenal Bifidobacterium species composition in active and non-active coeliac disease

Microbial group in biopsy samples Prevalence (%)a P-value Chi-square test Bonferroni adjustment
  Active CD (n = 25) Non-active CD (n = 8) Control (n = 8) Active- non-active CD Control- active CD Control- non-active CD
Bifidobacterium group 100.0 (25/25) 100.0 (8/8) 100.0 (8/8) - - -
B. longum 100.0 (25/25) 100.0 (8/8) 100.0 (8/8) - - -
B. breve 64.0 (16/25) 37.5 (3/8) 37.5 (3/8) 0.181 0.181 0.695
B. bifidum 52.0 (13/25) 25.0 (2/8) 37.5 (3/8) 0.180 0.380 0.500
B. adolescentis 36.0 (9/25) 12.5 (1/8) 25.0 (2/8) 0.380 0.669 0.500
B. catenulatum group 52.0 (13/25) 37.5 (3/8) 87.5 (7/8) 0.381 0.050* 0.038*
B. angulatum 32.0 (8/25) 12.5 (1/8) 50.0 (4/8) 0.277 0.419 0.282
B. lactis 60.0 (15/25) 0.0 (0/8) 62.5 (5/8) 0.003*, i 0.618 0.012*, i
B. longum subsp. infantis 0.0 (0/25) 0.0 (0/8) 0.0 (0/8) - - -
B. dentium 8.0 (2/25) 12.5 (1/8) 0.0 (0/8) 0.578 0.568 0.500
Microbial group in faecal samples Prevalence (%)a P-value Chi-square test Bonferroni adjustment
  Active CD (n = 30) Non-active CD (n = 18) Control (n = 30) Active- non-active CD Control- active CD Control- non-active CD
Bifidobacterium group 100.0 (30/30) 100.0 (18/18) 100.0 (30/30) - - -
B. longum 100.0 (30/30) 100.0 (18/18) 100.0 (30/30) - - -
B. breve 80.0 (24/30) 66.7 (12/18) 66.7 (20/30) 0.325 0.500 0.751
B. bifidum 100.0 (30/30) 100.0 (18/18) 100.0 (30/30) - - -
B. adolescentis 50.0 (15/30) 83.3 (15/18) 40.0 (12/30) 0.016*, i 0.452 0.045*
B. catenulatum group 100.0 (30/30) 100.0 (18/18) 100.0 (30/30) - - -
B. angulatum 20.0 (6/30) 16.7 (3/18) 23.0 (7/30) 0.546 0.601 0.521
B. lactis 56.7 (17/30) 61.1 (11/18) 63.3 (19/30) 0.502 0.975 0.775
B. longum subsp. infantis 36.7 (11/30) 22.2 (4/18) 36.7 (11/30) 0.351 0.795 0.532
B. dentium 13.3 (4/30) 27.7 (5/18) 6.6 (2/30) 0.265 0.407 0.040*
  1. a Prevalence (Pr) reflects the number of positive amplifications from total samples analysed by PCR (n = number of samples analysed)
  2. * Statistical differences were calculated by using Chi-square test 2 × 2. Significantly difference between groups was consider at P < 0.050
  3. i Statistical differences were corrected for a multiple comparison test (3 variable) by using Bonferroni adjustment. Significantly difference between groups was considered at P < 0.017.