Efficacy of intradiscal autologous platelet-rich plasma injection in chronic lumbar disc prolapse: A quasi-experimental study

Table 6 Summary of serial improvements noted in the patients included in the study, mean ± SD

Outcome	3 weeks		6 weeks
	Value	P value	Value	P value
PRP group (n = 17)
VAS score	2.32 ± 1.6	< 0.001	2.94 ± 1.5	0.02
FRI score	19.11 ± 17.1	< 0.001	24.70 ± 15.5	0.004
Physiotherapy group (n = 22)
VAS score	0.81 ± 1.4	< 0.001	1.03 ± 1.4	0.012
FRI score	6.70 ± 11.5	< 0.01	9.66 ± 17.5	0.017

VAS: Visual Analogue Scale; FRI: Functional Rating Index; PRP: Platelet-rich plasma.