Table 2.

The associations of age and EHR usability with stress related to information systems and cognitive failures.

Variable			Estimate	P value
SRISa
	Age		.10	.15
	Gender		.13	.10
	Employment sector
		Hospital	Reference	N/Ab
		Health center	.10	.03
		Private clinic	.32	<.001
		Social service	.18	<.001
		Other	.16	.03
	Usability		.38	<.001
	Age × usability		.01	.80
	Adjusted R2		0.16	N/A
Cognitive failures
	Age		.16	<.001
	Gender		.02	.74
	Employment sector
		Hospital	Reference	N/A
		Health center	.08	.01
		Private clinic	.03	.60
		Social service	.00	.93
		Other	.04	.33
	Usability		.28	<.001
	Age × usability		.04	<.001
	Adjusted R2		0.04	N/A

^aSRIS: stress related to information systems.

^bN/A: not applicable.