Table 5 

Correlation between baseline fatigue and cerebrospinal fluid levels of adipokines and neuropeptides 

MFIGF 
Adiponectin CSF 
Leptin CSF 
Resistin CSF 
NPY CSF 
NGF CSF 



FIQ fatigue 
r = 0.623 P <0.001 n = 48 
r = 0.444 P = 0.026 n = 25 
r = 0.233 P = 0.263 n = 25 
r = 0.365 P = 0.073 n = 25 
r = 0.111 P = 0.607 n = 24 
r = 0.243 P = 0.243 n = 25 
MFIGF 
r = 0.508 P = 0.01 n = 25 
r = 0.189 P = 0.365 n = 25 
r = 0.316 P = 0.123 n = 25 
r = 0.014 P = 0.947 n = 24 
r = 0.219 P = 0.293 n = 25 



Correlation between baseline fatigue (FIQ and MFIGF) and cerebrospinal fluid levels of adiponectin, leptin, resistin, NPY and NGF. r, Spearman's correlation coefficient; P, Pvalue; n, number; FIQ, Fibromyalgia Impact Questionnaire; MFIGF, Multidimensional Fatigue Inventory subscale of General Fatigue; CSF, cerebrospinal fluid; NPY, neuropeptide Y; NGF, nerve growth factor. 

Bjersing et al. Arthritis Research & Therapy 2013 15:R34 doi:10.1186/ar4187 