Nicotine and cotinine in mothers' and infants' hair

Table 6: Neonatal hair concentrations of nicotine

Group, by mothers' smoking status Mean hair concentration, ng nicotine/mg hair Standard deviation Standard error Range

Active smokers
Mother only smoker in household
Mother and others in household smoke
Total
3.62
0.93
2.41 7.04
0.94
5.35 1.71
0.25
0.96 0.19-27.30
0.07-3.34
0.07-27.30

Passive smokers 0.29 0.25 0.05 0.04-1.19

Nonsmokers 0.41 0.47 0.08 0-1.97

Table 6: Neonatal hair concentrations of nicotine
Group, by mothers' smoking status	Mean hair concentration, ng nicotine/mg hair	Standard deviation	Standard error	Range
Active smokers Mother only smoker in household Mother and others in household smoke Total	3.62 0.93 2.41	7.04 0.94 5.35	1.71 0.25 0.96	0.19-27.30 0.07-3.34 0.07-27.30
Passive smokers	0.29	0.25	0.05	0.04-1.19
Nonsmokers	0.41	0.47	0.08	0-1.97