Table 1

SOS program baseline demographics

Treatment group
(n=112)
Control group (n=108)
Mean (SD) maternal age (years)23.5 (5.7)24.0 (5.8) (n=107)
Per cent non-white10% (n=110)12%
Per cent Latina or Hispanic8% (n=109)7.5% n=107
Mean (SD) gestation period (weeks)16.6 (6.6)16.4 (7.4)
Mean (SD) years of education attained11.6 (2.0)11.8 (1.7)
Per cent married or living with a partner53%58%
Percent household income < $2000087%89%
Mean (SD) salivary cotinine (ng/ml)45.4 (40.1)45.7 (47.5)
Mean (SD) salivary thiocyanate (μg/ml)184.9 (79.5)183.0 (91.2) (n=107)