Table 2.

Correlation analysis (Spearman r and two-tailed P value) among the research variables.

Variable			Baseline characteristics						Quality			Reliability		PEMAT-A/Va
			Likes	Dislikes	Views	Duration	Uploads	DISCERN		GQSb	JAMAc		Understandability		Actionability
Baseline characteristics
	Likes
		r	1	0.784d	0.604d	0.375e	–0.060	–0.085		–0.082	–0.084		0.031		0.215
		P value	—f	<.001	<.001	.02	.71	.60		.61	.60		.85		.18
	Dislikes
		r	0.784d	1	0.619d	0.228	–0.323e	–0.186		–0.151	0.037		–0.119		0.066
		P value	<.001	—	<.001	.15	.04	.25		.35	.82		.46		.68
	Views
		r	0.604d	0.619d	1	0.200	–0.380e	0.086		0.003	0.068		0.029		0.055
		P value	<.001	<.001	—	.21	.01	.59		.99	.67		.86		.74
	Duration
		r	0.375e	0.228	0.200	1	0.226	–0.013		–0.025	0.115		0.454d		0.314
		P value	.02	.15	.21	—	.16	.93		.87	.47		<.001		.06
	Uploads
		r	–0.060	–0.323e	–0.380e	0.226	1	0.059		0.106	–0.152		0.300		0.157
		P value	.71	.04	.01	.16	—	.72		.51	.34		.06		.33
Quality measures
	DISCERN
		r	–0.085	–0.186	0.086	–0.013	0.059	1		0.836d	0.488d		0.460d		0.135
		P value	.60	.25	.59	.93	.72	—		<.001	<.001		<.001		.40
	GQS
		r	–0.082	–0.151	0.003	–0.025	0.106	0.836d		1	0.426d		0.482d		0.186
		P value	.61	.35	.99	.87	.51	<.001		—	<.001		<.001		.24
Reliability measures
	JAMA
		r	–0.084	0.037	0.068	0.115	–0.152	0.488d		0.426d	1		0.469d		–0.052
		P value	.60	.82	.67	.47	.34	<.001		<.001	—		<.001		.75
PEMAT-A/V measures
	Understandability
		r	0.031	–0.119	0.029	0.454d	0.300	0.460d		0.482d	0.469d		1		0.220
		P value	.85	.46	.86	<.001	.06	<.001		<.001	<.001		—		.17
	Actionability
		r	0.215	0.066	0.055	0.314e	0.157	0.135		0.186	–0.052		0.220		1
		P value	.18	.68	.74	.05	.33	.40		.24	.75		.17		—

^aPEMAT-A/V: Patient Education Materials Assessment Tool for Audiovisual Materials.

^bGQS: Global Quality Scale.

^cJAMA: Journal of the American Medical Association.

^dThe correlation is significant at a significance level of <.001 (two-tailed).

^eThe correlation is significant at a significance level of .05 (two-tailed).

^fNot applicable.