Table 1

 Quantitative analysis of microbial isolates in lumen washings of excluded colonic segments

Control groupTest groupp Value
nd, not detected; detection limit 10 colony forming units per washing.
Data are log10 of colony forming units per washing, expressed as median (25th–75th percentile) values. Differences were tested using the Mann-Whitney U test.
Inoculated Enterobacteriae5.4 (2.3–7.3)4.3 (2.3–7.6)0.59
Inoculated Streptococcus5.9 (nd–7.6)5.3 (3.6–5.7)0.96
Inoculated Bacteroides3.3 (2.3–5.7)6.0 (4.4–7.6)0.15
Inoculated L caseind3.6 (2.9–6.6)<0.01
Non-inoculated bacteria5.3 (nd–7.2)5.3 (nd–7.3)0.99
Total bacteria6.1 (2.6–7.9)6.2 (4.4–8.0)0.91