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Glucocorticoids have been used to treat croup for 40 years although
their use has been controversial. A meta-analysis by Ausejo et al
(p 595) found that the use of glucocorticoids results in significant
clinical improvement within 6 hours. This improvement is also shown by
the shorter times spent in accident and emergency or in hospital and
the less frequent use of additional treatments. Although the quality of
studies included in the meta-analysis is good, some concern remains
about possible publication bias.