Table 5.

Correlations of RBC, Hb, PLT, RPR and HPR with Indices of Disease Activity in RA Patients

Parameters	CRP (mgL)		ESR (mm/h)		DAS28-CRP
	r	P-value	r	P-value	r	P-value
RBC (1012/L)	−0.289	<0.001	−0.481	<0.001	−0.428	<0.001
Hb (g/L)	−0.341	<0.001	−0.569	<0.001	−0.489	<0.001
PLT(109/L)	0.284	<0.001	0.331	<0.001	0.327	<0.001
RPR	−0.397	<0.001	−0.329	<0.001	−0.310	<0.001
HPR	−0.402	<0.001	−0.362	<0.001	−0.293	<0.001

Abbreviations: CRP, C-reactive protein; ESR, erythrocyte sedimentation rate; DAS28-CRP, Disease Activity Score in 28 joints based on C-reactive protein; RBC, red blood cells; Hb, hemoglobin; PLT, platelet; RPR, red blood cells-platelet ratio; HPR, hemoglobin–platelet ratio.