Statistical methods
Depressive, neuropathic pain, NRS, pain
The Shapiro–Wilk test was used to investigate data distribution and showed that the data analyzed in this study presented with normal distribution. Demographic, quality of life (SF-36), and pain (NRS) data were analyzed using the Mann–Whitney test. Analgesic medication and neuropathic pain (DN4) were analyzed using Pearson’s chi-square test and corrected with Yates’ continuity correction where applicable. Depressive symptoms (PHQ-9) were analyzed using Cochran’s Q test. Correlations were analyzed using Pearson’s correlation coefficient. Statistical significance was set at p ≤ 0.05.