Table 6.

Output of stepwise OLS regression, modeling the effects of practice, EHR* usage, purpose of prior authorization request, insurance type involved, reporter type, and rurality of the practice location

Variable	Beta	t	p	Lower bound (95% CI)	Upper bound (95% CI)
Constant	20.017	13.018	<.001	16.995	23.040
Practice X	11.389	6.108	<.001	7.724	15.054
Purpose - OT/PT†	−8.716	−4.847	<.001	−12.250	−5.182
Medicaid	−6.085	−3.871	<.001	−9.174	−2.995
EHR in use	−5.086	−3.085	.002	−8.327	−1.845

Model Parameters: R² = .154; F = 19.506, p < .001.

Dependent Variable: Time (in minutes) of each Prior Authorization event.

Independent Variables removed from equation: All practice indicator variables aside from one (Practice X); all purposes for PA calls aside from OT/PT; all other insurance types aside from Medicaid; rurality; all reporter types (physician, nurse, clerical, etc.).

*EHR = Electronic Health Record, †OT = Occupational Therapy, PT = Physical Therapy.