Appendix Table 2.

Type of Data Analyzed in Each Study and Category of Information Assessed

	No. of Media	Physician	Academic	Public Education, Not Physician	Blog	News or Other	Industry or Commercial
Study authors
Akinleye et al.,12 2018	50 websites	8	15	19	—	8	—
Akpolat and Kurdal,13 2020	48 videos	—	—	—	—	—	—
Bruce-Brand et al.,14 2013	60 websites	6	4	—	6	—	29
Cassidy et al.,15 2018	39 websites	1	22		—	—	16
Celik et al.,16 2020	67 videos	32	0	9	16	0	10
Dalton et al.,17 2015	59 websites	26	—	—	—	31	2
DeFroda et al.,18 2019	300 images	—	—	—	—	—	—
DeFroda et al.,19 2018	300 images	—	—	—	—	—	—
Devitt et al.,20 2017	81 websites	34	20	—	—	23	4
Duncan et al.,21 2013	200 websites	36	23	20	12	104	5
Dy et al.,5 2012	75 websites	36	4	—	45	—	40
Garcia et al.,22 2014	82 websites	32	13	12	14	—	11
Goldenberg et al.,23 2019	47 websites	Not specified
Gosselin et al.,24 2013	35 websites	3	7	2	13	8	2
Houck et al.,25 2019	90 websites	32	38	7	1	11	1
Nwachukwu et al.,26 2018	96 websites	57	9	5	6	14	5
O'Neill et al.,27 2014	225 websites	Not specified
Somerson et al.,28 2018	49 websites	16	12	5	—	—	16
Starman et al.,31 2010	154 websites	22	32	7	3	16	74
Wang et al.,29 2017	53 websites	33	—	—	—	5	15
Zhang et al.,30 2016	91 websites	Not specified
Total	1,486 websites	374	199	86	116	220	230
%		25	13	6	8	15	15
Average ± SD	87.51 ± 55.17

SD, standard deviation.