Study Characteristics	Eligibility criteria	Yes  No Unclear	Location in text (pg & ¶ /fig / table)
Type of study	Randomized Controlled Trials
Participants	Children <16yrs, who underwent elective tonsillectomy or adenotonsillectomy
Types of intervention	NSAIDs.  Any route of administration.
Drug exclusions	Does trial include aspirin?   Does trial include COX‐2 inhibitors?
Types of outcome measures	Bleeding requiring further surgical intervention   Bleeding not requiring further surgical intervention   Nausea or vomiting, or both
INCLUDE                  EXCLUDE
Reason for exclusion