Effectiveness of lyophilized growth factors injection for subacromial impingement syndrome: a prospective randomized double-blind placebo-controlled study

Table 6 Linear regression analysis of predictors of VAS, SPADI-total and supraspinatus tendon thickness at follow-up

	p	OR	Overall model F	Overall model p	R square
Predictors of follow-up VAS
Baseline VAS	< 0.001*	0.67	14.3	< 0.001*	0.334
L-GF injection	0.025*	− 1.38	14.3	< 0.001*	0.334
Predictors of follow-up SPADI-total
Baseline SPADI-total	< 0.001*	0.616	9.298	< 0.001*	0.332
L-GF injection	0.016*	− 13.73
Handedness	0.045*	31.40
Predictors of follow-up US-L
Baseline US-L	< 0.001*	0.932	117.52	< 0.001*	0.805
Baseline Hawkins- Kennedy test	0.016*	0.062	117.52	< 0.001*	0.805
Predictors of follow-up US-T
Baseline US-T	< 0.001*	0.715	36.677	< 0.001*	0.563

(Only the significant predictors are shown in table)
VAS visual analogue scale, SPADI shoulder pain and disability index, US-L, -T ultrasonographic measurement of supraspinatus tendon thickness in longitudinal and transverse views, respectively, OR odds ratio
*Statistically significant at p ≤ 0.05

ISSN: 1749-799X