Randomised controlled trial using social support and financial incentives for high risk pregnant smokers: Significant Other Supporter (SOS) program

Table 2

SOS program biochemically confirmed quit rates by randomised group

	Treatment group	Control group
Clients enrolled at baseline	112	108
Eight month gestation quit rate	32%^2-150 n=105	9%^2-150 n=102
Pregnancy termination or fetal demise (n)	7	6

Two month postpartum quit rate	21%^2-151 n=103	6%^2-151 n=102
Pregnancy termination or fetal demise (n)	9	6

↵2-150 χ² = 18.4 (p < 0.0001);
↵2-151 χ² = 11.0 (p < 0.0009).

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