| Type of organism |
fistula present
(n=53) |
No fistula
(n=27) |
|
| Number of abscesses
yielding anaerobes |
49 (92.5%) |
8 (29.6%) |
P<0.0001 |
| Escherichia coli |
45 (84.9%) |
5 (18.5%) |
P<0.0001 |
| Staph. aureus |
┼ 1 (1.9%) |
8 (29.6%) |
P=0.0012 |
| Anaerobes
'Gut-specific
Bacteroids |
47 (88.7%) |
5 (18.5%) |
P<0.000l |
| Anaerobes not
'gut-specific' (only) |
2 (3.8%) |
17 (63%) |
P<0.0001 |
| Gut aerobes+
'gut-specific
anaerobes' |
45 (85%) |
4 (14.8%) |
P<0.0001 |
Includes E. coli, Klebsiella spp, Proteus spp, Citrobacter spp, Salmonella sp, Str.
faecalis
• ┼ Only 2 colonies isolated.
This table is published with a permission from the Royal College of Surgeons of
England
|
