Table S1.

Member fixed effects linear regression model full output - cost and utilization of PT, IP Acute, and ED

Covariate	Total medical allowed		PT visits		IP acute admits		ED visits
	Coefficient	p-value	Coefficient	p-value	Coefficient	p-value	Coefficient	p-value
Male	(reference)	–	(reference)	–	(reference)	–	(reference)	–
Femalea	(omitted)	–	(omitted)	–	(omitted)	–	(omitted)	–
Non-PT bundle cohort	(reference)	–	(reference)	–	(reference)	–	(reference)	–
PT bundle cohorta	(omitted)	–	(omitted)	–	(omitted)	–	(omitted)	–
Post-PT: 0 months	(reference)	–	(reference)	–	(reference)	–	(reference)	–
Post-PT: 1–3 months	256.311	0.000	1.698	0.000	−0.001	0.498	0.011	0.002
Post-PT: 4–6 months	−53.501	0.516	0.178	0.000	0.001	0.635	−0.008	0.039
Post-PT: 7–9 months	−164.929	0.092	0.106	0.002	−0.002	0.435	−0.013	0.006
Post-PT: >9 months	−191.408	0.077	0.103	0.005	−0.002	0.450	−0.008	0.100
PT bundle × 1–3 months	202.779	0.059	1.375	0.000	0.000	0.890	0.004	0.515
PT bundle × 4–6 months	170.134	0.096	0.266	0.000	−0.003	0.206	−0.011	0.030
PT bundle × 7–9 months	197.392	0.106	0.089	0.068	0.001	0.862	−0.012	0.036
PT bundle × >9 months	231.301	0.178	−0.166	0.005	0.004	0.278	−0.004	0.662
Year 2013	(reference)	–	(reference)	–	(reference)	–	(reference)	–
Year 2014	139.812	0.030	−0.104	0.001	0.001	0.680	0.013	0.000
Age: < 40 years old	(reference)	–	(reference)	–	(reference)	–	(reference)	–
Age: 40–49	399.490	0.000	1.430	0.000	0.000	0.859	0.094	0.000
Age: 50–59	−683.874	0.570	3.473	0.000	0.002	0.503	0.100	0.000
Age: 60+	−74.579	0.951	4.640	0.000	0.002	0.559	0.103	0.000
No. of comorbidity: 0	(reference)	–	(reference)	–	(reference)	–	(reference)	–
No. of comorbidity: 1	534.154	0.003	0.027	0.588	0.016	0.073	0.004	0.748
No. of comorbidity: 2+	833.048	0.004	0.012	0.919	0.012	0.117	0.095	0.001
Age 40–49 × No. of comorbidity 1	219.420	0.450	0.021	0.857	−0.006	0.565	0.031	0.091
Age 40–49 × No. of comorbidity 2	704.645	0.152	0.075	0.670	0.001	0.907	−0.054	0.092
Age 50–59 × No. of comorbidity 1	172.341	0.447	0.066	0.397	−0.014	0.142	0.004	0.787
Age 50–59 × No. of comorbidity 2	232.493	0.481	0.007	0.960	0.002	0.843	−0.061	0.037
Age 60+ × No. of comorbidity 1	152.904	0.516	0.177	0.041	−0.005	0.590	0.023	0.126
Age 60+ × No. of comorbidity 2	−60.273	0.881	0.241	0.077	−0.005	0.650	−0.074	0.014
Constant	475.451	0.424	−2.199	0.000	0.004	0.048	−0.051	0.000
N No. of member-month; No. of member)	76,457; 4,390		76,457; 4,390		76,457; 4,390		76,457; 4,390

Notes:

^aOmitted due to collinearity with patient fixed effects. ‘–’ indicates not available.

Abbreviations: PT, physical therapy; IP, inpatient; ED, emergency department.