. 2014 Sep 1;1(3):92–95. doi: 10.5152/eurjrheumatol.2014.032

Table 3.

Correlation between acute phase parameters and ferritin in patients with SLE

	ESR (mm/h)	Ferritin (ng/mL)	CRP (mg/dL)	Antinuclear antibody titer	Anti-dsDNA titer	C3	C4
Ferritin	−0.003^*
	0.99^a
CRP	0.74	0.3
	<0.001	0.2
Antinuclear antibody	−0.22	0.66	−0.04
	0.35	0.002	0.85
Anti-dsDNA	−0.23	0.82	−0.06	0.86
	0.4	<0.001	0.83	<0.001
C3 complement level	−0.13	−0.16	−0.14	−0.01	−0.25
	0.6	0.5	0.56	0.96	0.35
C4 complement level	−0.09	−0.05	−0.23	−0.12	−0.13	0.6
	0.7	0.83	0.32	0.6	0.63	0.005
SLEDAI	0.02	0.45	−0.02	0.36	0.51	−0.08	−0.26
	0.92	0.04	0.93	0.13	0.04	0.72	0.26

ESR: erythrocyte sedimentation rate; CRP: c-reactive protein; SLEDAI: SLE disease activity index

^(*)

r: Spearman correlation coefficients.

^(a)