Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Successful irrigation (syringing)
RCT 3-armed trial	89 people	Complete tympanic membrane visualisation achieved after application of the wax solvent, with or without irrigation final success rate 21/32 (66%) with chlorbutanol/phenol/turpentine/ethyl alcohol based proprietary preparation 12/28 (43%) with saline	OR 2.5 95% CI 0.9 to 7.2 P = 0.08 This analysis based on univarate logistic regression		Not significant