1. Reported adverse events in the topical repellents arm of included studies (Analysis 1.4).

Study	Total adverse events reported in the topical repellents arm	Study population in the topical repellents arm	%
Agius 2020	0	13809	0
Chen‐Hussey 2013a	150	3947	3.8
Hill 2007	0	2041	0
Kroeger 1997	48	1600	3
McGready 2001	51	449	11.4
Rowland 2004	1	618	0.16
Sluydts 2016	33	25051	0.13
Total	283	47515	0.6

^aStudies that reported adverse events in both intervention arms