Changes in VAS and KODI according to the Onset
Visit | Subjects with back pain continuing After 2017(n=5) | Subjects with back pain continuing Before 2017(n=23) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Mean±SD | Median | Min∼max | Mean±SD | Median | Min∼max | |||||
VAS | Difference (Visit 14-Visit 2) | −2.36±0.98 | −2.70 | −3.10∼−0.70 | 0.0057 | −1.73±1.50 | −1.30 | −4.80∼0.70 | <.0001 | 0.3812 |
KODI | Difference (Visit 14-Visit 2) | −7.40±3.51 | −6.00 | −11.00∼−3.00 | 0.0625¶ | −5.39±4.52 | −5.00 | −17.00∼1.00 | <.0001 | 0.2499 |
within group comparison,
between group comparison,
Visual analog scale,
Korean Oswestry disability index, Paired t-test,
Wilcoxon’s signed rank test.