Table 3.

Cocaine and metabolite oral fluid concentrations in specimens (N= 130) collected from heroin-dependent pregnant women in methadone maintenance treatment

Analytes	n	Median (μg/L)	Mean ± SD (μg/L)	Range (μg/L)
Ecgonine	1	25.9	*	*
EME	10	51.1	68.4 ± 54.9	13.3 – 173.7
EEE	0	*	*	*
AEME	5	96.4	93.9 ± 47.7	24.7 – 142.5
p-hydroxybenzoylecgonine	0	*	*	*
m-hydroxybenzoylecgonine	0	*	*	*
Benzoylnorecgonine	6	4.0	3.5 ± 1.3	1.6 – 4.7
BE	98	3.4	11.9 ± 26.8	1.0 – 157.2
p-hydroxycocaine	0	TR**	*	*
m-hydroxycocaine	0	TR**	*	*
Norcocaine	11	1.9	2.2 ± 1.0	1.4 – 5.0
Cocaine	111	6.4	29.7 ± 71.0	1.0 – 508.0
Norcocaethylene	0	*	*	*
Cocaethylene	2	1.5	1.5 ± 0.2	1.4 – 1.7

^*n<2, no calculation possible

^**TR, analyte identified but below LOQ