Table 2.
Correlations between baseline serum BDNF and clinical parameters
| BDNF &: | Correlation Coefficient | P value |
|---|---|---|
| Age | ||
| All participants(n = 73) | 0.10 | 0.38¥ |
| FM group(n = 50) | 0.05 | 0.68¥ |
| FIQR | ||
| All participants(n = 73) | −0.12 | 0.31¥ |
| FM group(n = 50) | −0.25 | 0.07¥ |
| BDI-II | ||
| All participants(n = 73) | −0.08 | 0.50¥¥ |
| FM group(n = 50) | −0.11 | 0.42¥ |
| PSD | ||
| All participants(n = 73) | −0.19 | 0.09¥ |
| FM group(n = 50) | −0.31 | 0.02*¥ |
| Pain VAS | ||
| All participants(n = 73) | −0.20 | 0.08¥¥ |
| FM group(n = 50) | −0.32 | 0.02*¥¥ |
¥ These values are based on Pearson analysis, ¥¥ These values are based on Spearman analysis, FIQR: Revised Fibromyalgia Impact Questionnaire, BDI-II: Beck Depression Inventory-II, PSD: polysymptomatic distress scale, Pain VAS: Pain visual analog scale. P value is statistically significant at the 0.05 level (two-tailed)