Relationship between lead concentration in maternal and umbilical cord blood and some neonatal outcomes in primiparous opium-dependent mothers in Zahedan, Southeast of Iran in 2022

Table 2 Lead level in mother’s blood and umbilical cord blood and their relationship with each other in the group of mothers addicted to opium and the control group

Groups\ Variables	Control	Addicted	P value
Groups\ Variables	Mean ± SD	Mean ± SD	P value
Maternal blood lead (µg/dL)	7.5 ± 4.25	24.97 ± 8.45	< 0.0001 ^a
Umbilical cord blood lead (µg/dL)	5.7 ± 2.84	18.68 ± 6.95	< 0.0001 ^a
P value	r = 0.79 P = < 0.0001^b	r = 0.74 P < 0.0001^b

ISSN: 1471-2393