Table 4: Outcome in patients who had 1 versus 2 sets of diagnostic medial branch blocks prior to radiofrequency ablation (n=55 total patients).

	1 Set of Medial Branch Blocks (n=28) Median (IQR) or n (%)	2 Sets of Medial Branch Blocks (n=27) Median (IQR) or n (%)	P value
≥50% improvement in function	13 (46%)	17 (63%)	0.22
Reduction in NRS pain score	2 (1, 5)	2 (0, 4)	0.56
≥50% improvement in pain	12 (43%)	16 (59%)	0.21
Change in Morphine eq	0 (0, 10)	1.7 (0, 10)	0.57
Change in MQS III score	2.7(0, 9.6)	3.4 (0, 11.6)	0.35

Eq: Equivalents, IQR: Interquartile Range, MQS III score: Medication Quantification Scale III score NRS: Numerical Rating Scale