RCV and CV conditions increased point-prevalence abstinence above NCV levels at early ( RCV : 40 % , CV : 46 % , NCV : 13 % , p = .007 ) and late-pregnancy ( RCV : 45 % ; CV : 36 % ; NCV , 18 % ; p = .04 ) assessments , but abstinence levels did not differ between the RCV and CV conditions .