. 2021 Oct 1;23(10):e24200. doi: 10.2196/24200

Table 2.

Relationship between participants’ views on consent (opt in vs opt out) and level of agreement with the conditions on sharing data.

Conditions on sharing	Type of consent			P value
	Opt in (n=1356), n (%)	Opt out (n=352), n (%)
I am told how my health information will be used	1215 (89.6)	284 (80.6)	<.001^a
I am told which company will have access to my health information	1189 (87.7)	284 (80.6)	.001^a
My health information is stored in a safe place	1285 (94.8)	312 (88.7)	<.001^a
The private company pays for the use of the health information	848 (62.5)	210 (59.7)	.38
The information sharing is approved by an independent ethics committee	1187 (87.5)	286 (81.2)	.007^a
The private company is required to publish all results—both good and bad	1180 (87.0)	288 (81.9)	.02^a
The research is likely to lead to benefits for society	1246 (91.9)	304 (86.3)	.004^a
There are strict rules to stop the information being passed on to anyone else	1275 (94.0)	310 (88.1)	<.001^a

^aIndicates level of significance at P<.05.