Participant Group

Traditional Care (n =170)

Centering (n = 173)

p Value

Smoker

49 (30%)

45 (26%)

p = 0.272

Quit with Pregnancy Diagnosis

9 (18%)

31(69%)

p < 0.000

Quit during Prenatal Care

3 (8%)

7 (50%)

p < 0.000