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

Table 2 Correlations of the heavy metals’ levels with the levels of SP-D, CTnI and hs-CRP in the whole study sample (N = 160)

		Pb(μg/dl)	E-Cd(μg/dl)	N-As (μg/g dry hair)	U-Cd (μg/g creatinine)	U-As(μg/l)
SP-D (ng/ml)	rho	0.167	0.062	0.268	0.176	0.329
SP-D (ng/ml)	p	0.035	0.434	0.001	0.026	< 0.001
CTnI(ng/ml)	rho	0.416	0.193	0.069	0.091	-0.064
CTnI(ng/ml)	p	< 0.001	0.014	0.383	0.253	0.421
hs-CRP (mg/l)	rho	0.184	0.163	0.160	0.133	0.215
hs-CRP (mg/l)	p	0.02	0.04	0.044	0.092	0.006

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, p: p-Value

ISSN: 1471-2431