Table 2.

Comparison of sign scores expressed as mean ± SD at baseline and after the end of treatment within the same group (paired t-test)

Groups	Before treatment		After treatment		t value		P value
	Sign score	Pain score	Sign score	Pain score	Sign score	Pain score	Sign score	Pain score
Steroid	4.6 ±0.55	3.6 ±0.55	3.6 ±0.55	0.8 ±0.45	-0.4	-0.14	0.016*	0.0001*
Ozone	4.2 ±1.1	3.4 ±0.89	3 ±1	2.8 ±0.45	-0.6	-2.45	0.0038*	0.07 ns
Combined	4.2 ±0.84	3.2 ±0.84	1.6 ±0.44	0.6 ±0.15	-10.6	-10.6	0.0004*	0.0004*

Significance level p<0.05;

^*=significant; ns=non-significant.