Table 3.

Statistical Correlations Between Some Parameters in SLE Patients with and without Lupus Nephritis (LN)

		eGFR	Proteinuria	S. Phosphorus	S. iFGF23	Cum_S	PS	CC-IMT
eGFR	r	SLE LN	− 0.334	− 0.153	− 0.446	− 0.56	− 0.245	− 0.297
	P		0.15	0.519	0.049*	0.01*	0.299	0.203
Proteinuria	r	− 0.139	SLE LN	− 0.184	0.244	0.479	0.245	0.152
	P	0.48		0.437	0.301	0.033*	0.297	0.523
S. Phosphorus	r	−0.458	0.34	SLE LN	0.513	0.295	0.552	0.539
	P	0.014*	0.076		0.021*	0.207	0.012*	0.014*
S. iFGF23	r	− 0.31	0.479	0.383	SLE LN	0.414	0.675	0.568
	P	0.108	0.01*	0.044*		0.069	0.001**	0.009**
Cum_S	r	− 0.234	0.087	0.115	− 0.12	SLE LN	0.263	0.689
	P	0.23	0.659	0.56	0.543		0.263	0.001**
PS	r	0.315	0.295	− 0.054	0.431	− 0.281	SLE LN	0.485
	P	0.102	0.128	0.784	0.022*	0.147		0.03*
CC-IMT	r	0.057	0.338	− 0.06	0.422	− 0.396	0.478	SLE LN
	P	0.774	0.078	0.76	0.025*	0.037*	0.01*

Notes: *Significant (P < 0.05), **Highly significant (P < 0.01). Correlations in G2 (SLE without LN, N = 20) and G3 (LN, N = 28) are shown in right upper and left lower halves of the table, respectively.

Abbreviations: S, serum; eGFR, estimated glomerular filtration rate; iFGF23, intact fibroblast growth factor 23; Cum_S, cumulative steroid dose; PS, plaque score; CC-IMT, common carotid intima-media thickness.