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. Author manuscript; available in PMC: 2020 Mar 1.

Published in final edited form as: Reg Anesth Pain Med. 2019 Mar;44(3):389–397. doi: 10.1136/rapm-2018-000035

TABLE 2.

Changes in NRS and ODI From Baseline to 6-Month Follow-Up

	RFA
	Cooled (n = 21)				Traditional (n = 18)				Group difference in changes
	Pre	At 6 months	Change	P^*	Pre	At 6 months	Change	P^*	P^**
NRS	7.4 (1.7)	3.6 (2.4)	−3.8 (2.5)	< 0.001	6.9 (1.5)	3.9 (3.4)	−3.0 (3.2)	0.001	0.410
ODI	29.1 (7.0)	17.8 (10.0)	−11.3 (11.2)	< 0.001	26.7 (8.7)	18.6 (11.6)	−8.1 (12.3)	0.012	0.397

Values are mean (SD).

^*

from one-sample t-test.

^**

from independent t-test.