Table 4 Results of stool cultures performed during the week before the occurrence of rectal bleeding in cases and during the week before the corresponding age in controls
From: Risk factors of mild rectal bleeding in very low birth weight infants: a case control study
Controls n = 144 | Cases n = 72 | p* | |
|---|---|---|---|
Positive stool culture, n (%) | 93 (64) | 39 (54) | 0.139 |
Staphylococcus aureus, n (%) | 18 (12.5) | 13 (18.1) | 0.272 |
Coagulase negative Staphylococcus, n (%) | 31 (21.5) | 13 (18.1) | 0.55 |
Clostridium difficile, n (%) | 1 (0.7) | 5 (6.9) | 0.017 |
Escherichia coli, n (%) | 6 (4.2) | 2 (2.8) | 0.722 |
Enterococcus, n (%) | 9 (6.3) | 2 (2.8) | 0.343 |
Klebsiella pneumoniae, n (%) | 2 (1.4) | 4 (5.6) | 0.097 |
Proteus mirabilis, n (%) | 1 (0.7) | 0 | 1 |
Klebsiella oxytoca, n (%) | 1 (0.7) | 0 | 1 |
More than two micro organisms, n (%) | 24 (16.7) | 0 | < 0.001 |