Table 2.

Predictors of provider task load in multivariable linear regression models among practicing physicians in 2017.

Predictor		Coefficient (SE)	P value
SUSa score		−0.57 (0.03)	.001
Gender (reference: male)
	Female	12.59 (1.68)	.03
	Missing/other	19.26 (10.24)	.58
Age, for each year older		−0.45 (0.07)	.048
Specialty (reference: general internal medicine)
	Anesthesiology	30.6 (4.18)	.03
	Dermatology	13.68 (5.03)	.42
	Emergency medicine	47.04 (3.83)	<.001
	Family medicine	−2.87 (3.71)	.82
	Radiology	13.33 (4.25)	.36
	Neurology	−1.18 (4.4)	.94
	Obstetrics and gynecology	9.1 (4)	.5
	Pathology	−4.13 (4.83)	.8
	Psychiatry	−29.11 (3.84)	.03
	Other	−9.66 (3.42)	.4
	Internal medicine subspecialty	8.83 (3.13)	.41
	General pediatrics	−0.76 (3.99)	.96
	Pediatric subspecialty	−14.01 (3.84)	.28
	General surgery	−1.23 (4.4)	.93
	General surgery subspecialty	−6.76 (3.71)	.59
	Orthopedic surgery	−9.47 (4.24)	.51
Hours worked per week, for each additional hour		0.98 (0.05)	<.001
Nights on call per week, for each additional call		3.26 (0.37)	.01
Primary practice setting (reference: private practice)
	Academic medical center	−0.62 (1.77)	.92
	Veterans hospital	2.22 (5.22)	.9
	Active military practice	−31.44 (6.9)	.18
	Other	4.5 (2.07)	.52
Relationship status (reference: single)
	Married	14.12 (2.24)	.06
	Partnered	19.95 (3.93)	.13
	Widowed/widower	46.33 (8.61)	.11

^aSUS: System Usability Scale.