Neonatal heavy metals levels are associated with the severity of neonatal respiratory distress syndrome: a case–control study

Table 3 Correlations of the heavy metals’ levels with the levels of SP-D, CTnI and hs-CRP in G1 and G2

		Pb(μg/dl)	E-Cd(μg/dl)	N-As (μg/g dry hair)	U-Cd (μg/g creatinine)	U-As(μg/l)
G1 (Control, N = 60)
SP-D (ng/ml)	rho	-0.221	-0.088	0.188	0.109	0.069
SP-D (ng/ml)	P	0.090	0.502	0.15	0.409	0.600
CTnI(ng/ml)	rho	-0.228	-0.128	-0.045	-0.056	-0.166
CTnI(ng/ml)	P	0.08	0.329	0.734	0.672	0.206
hs-CRP (mg/l)	rho	-0.109	0.075	-0.026	0.124	-0.041
hs-CRP (mg/l)	P	0.407	0.571	0.844	0.346	0.755
G2 (NRDS, N = 100)
SP-D (ng/ml)	rho	0.316	0.069	0.226	0.133	0.389
SP-D (ng/ml)	P	0.001	0.496	0.024	0.188	< 0.001
CTnI(ng/ml)	rho	0.535	0.223	0.032	0.055	-0.114
CTnI(ng/ml)	P	< 0.001	0.026	0.751	0.59	0.257
hs-CRP (mg/l)	rho	0.196	0.096	0.069	0.002	0.188
hs-CRP (mg/l)	P	0.05	0.341	0.498	0.981	0.062

SP-D Surfactant protein D, CTnI Cardiac troponin I, hs-CRP High-sensitive C-reactive protein, Pb Cord blood lead, E-Cd Cord erythrocytic cadmium, N-As Neonatal scalp hair arsenic, U-Cd Maternal urinary cadmium, U-As Maternal urinary arsenic, rho Spearman correlation (rho), p p-Value, NRDS Neonatal respiratory distress syndrome

ISSN: 1471-2431