Table 2 

Correlation coefficients (r) of resistin (dependent variable) and diseaserelated variables (independent variables). 

Resistin (ng/mL) 



r 
r_{s} 



Erythrocyte sedimentation rate, mm/hour 
0.316^{a} 

Creactive protein, mg/L 
0.193^{c} 

Salbumin, g/L 
0.302^{a} 

IgG, g/L 
0.178^{c} 

SC3, g/L 
0.216^{b} 

Interleukin6, pg/mL 
0.315^{a} 

sIL6R, pg/mL 
0.183^{c} 

Tumor necrosis factoralpha, pg/mL 
0.312^{a} 

Shighdensity lipoprotein, mmol/L 
0.177^{c} 

Striglycerides, mmol/L 
0.252^{b} 

Screatinine, μmol/L 
0.180^{c} 

Glomerular filtration rate, mL/minute 
0.228^{b} 

Nephritis ever (yes = 1 and no = 0) 
0.178^{c} 

Corticosteroid current dose, mg/day 
0.157^{c} 

BMD lumbar spine, g/cm^{2} 
0.165^{c} 

BMD total hip, g/cm^{2} 
0.170^{c} 

BMD radius total, g/cm^{2} 
0.261^{b} 

Number of vertebral fractures per patient 
0.171^{c} 

SICTP, μg/L 
0.193^{c} 



All variables were tested with the KolmogorovSmirnov normality test. Pearson correlation was used when the variables were normally distributed; otherwise, Spearman correlation was used. Only significant variables are shown. ^{a}p < 0.001; ^{b}p < 0.01; ^{c}p < 0.05. BMD, bone mineral density; ICTP, Cterminal telopeptide of type I collagen; IgG, immunoglobulin G; r, Pearson correlation coefficient; r_{s}, Spearman correlation coefficient; sIL6R, soluble interleukin6 receptor; SLE, systemic lupus erythematosus. 

Almehed et al. Arthritis Research & Therapy 2008 10:R15 doi:10.1186/ar2366 