Study selection
The inclusion criteria were a) studies that evaluate the role
of penicillin alone (or equivalent penicillin allergic) versus
penicillin plus additional anaerobic cover in the management of
peritonsillar abscess, b)Randomized control trials, c)published in
English language only. Studies that did not compare a penicillin alone
(or equivalent penicillin allergic) versus penicillin plus additional
anaerobic cover were excluded. Duplicate studies, reviews, comments,
animal studies, letters to the editor and studies demonstrating high
risk of bias on analysis were also excluded. Data extraction was
performed by two authors (KP and CMM) independently.