Table 4:

Multivariable linear regression model examining the association between video characteristics and understandability score

Effect		Estimate (Std Error)	Overall Test	p-value
Intercept		41.48(4.57)	.	<.0001
Video Type	Educational	0.13(6.84)	0.04	0.9854
	Expert Testimonial	15.18(5.63)		0.01
	Other	16.56(7.80)		0.04
	Parent Testimonial	12.02(6.14)		0.06
	Surgical Procedure	0.00		.
Graphics Type	Animation	33.43(9.97)	0.01	0.002
	Illustrations/Graphics	−2.37(7.16)		0.7
	Other/Unknown	–1.81(6.34)		0.8
	Photographs	–3.81(8.37)		0.7
	Live Action	0.00		.
Overall Tone	Negative	6.66(8.93)	0.06	0.5
	Positive	–9.67(5.07)		0.06
	Neutral	0.00		.