. Author manuscript; available in PMC: 2022 Jun 10.

Published in final edited form as: J Shoulder Elbow Surg. 2018 Dec 13;28(5):833–838. doi: 10.1016/j.jse.2018.10.001

Table IV.

Relationship of number of physical therapy sessions with SPADI score at 18 months’ follow-up in ROW cohort

	Estimate	Standard error	P value
Intercept	47.19	19.84	.02^*
6-mo follow-up^†	−4.60	2.69	.09
12-mo follow-up^†	−7.16	2.87	.01^*
18-mo follow-up^†	−11.60	2.09	<.001^*
Age	−0.30	0.28	.30
MHI-5 score	−0.05	0.13	.71
SPADI score at baseline	0.45	0.09	<.001^*
No. of comorbidities	0.66	4.23	.88
No. of PT sessions^‡
First set	−1.99	0.64	.003^*
Second set	1.42	0.63	.03^*

SPADI, Shoulder Pain and Disability Index; ROW, Rotator Cuff Outcomes Workgroup; MHI-5, Mental Health Inventory; PT, physical therapy. A higher SPADI score represents worse shoulder pain and function.

Statistically significant.

^†

Approximate time frame.

^‡

The relationship of the number of PT sessions to the SPADI score was not linear. The first set represents the initial decrease in SPADI scores with an increasing number of PT sessions. The second set represents the subsequent increase in SPADI scores with additional PT sessions after the first set.