Gabapentin versus Transdermal Fentanyl Matrix for the Alleviation of Chronic Neuropathic Pain of Radicular Origin: A Randomized Blind Multicentered Parallel-Group Noninferiority Trial

Table 5

Difference in the mean K-ODI scores between treatments.

Analysis population	N evaluable	Mean (SD)	Mean difference (one-sided 95% CI)	value^1
ITT
Fentanyl matrix	34	9.1 (18.2)	−0.6 (−7.91, 6.71)	0.8698
Gabapentin	42	9.7 (12.3)

¹Student's t-test; K-ODI: Korean–Oswestry Disability Index; SD: standard deviation; CI: confidence interval.