Table 3.
NWR thresholds and subjective pain ratings, 1st and 2nd limb comparison.
| A. NWR Threshold (mA) | B. Pain Rating | |||||||
|---|---|---|---|---|---|---|---|---|
| Group | 1st Limb Mean (95% CI) [SD] |
2nd Limb Mean (95% CI) [SD] |
Percent Change Mean (95% CI) [SD] |
t-Test | 1st Limb Mdn (IQR) |
2nd Limb Mdn (IQR) |
Percent Change Mean (95% CI) [SD] |
t-Test |
| FM (n = 17) | 11.7 (8.8, 14.5) [5.5] | 13.5 (10.8, 16.3) [5.3] | 47 (−14, 108) [118] | p = 0.29 | 7 (3) | 7 (3) | 23 (−6, 51) [55] | p = 0.08 |
| HC (n = 12) | 14.2 (10.8, 17.5) [5.3] | 14.1 (11.8, 16.3) [3.5] | 12 (−18, 42) [47] | 5 (2) | 4 (3) | −6 (−24, 12) [28] | ||
Percent change is the group mean value of the intra-individual difference between the first and second limbs. The t-tests (two-tailed) refer to the between-group difference of percent change mean values. In one patient, the NWR threshold increased by 460% (3.9 SD above the mean). With this value excluded, the percent change mean was 21 (95% CI: −7, 49) [53] and p = 0.64 (t-test). CI, confidence interval. FM, fibromyalgia. HC, healthy controls. IQR, interquartile range. Mdn, median. SD, standard deviation.