Women in the intervention group had lower actual than anticipated levels of fear and anxiety between baseline and 2 weeks post natal ( anxiety : mean difference -0.72 , 95 % CI -1.16 to -0.28 , P = 0.001 ) ; fear ( mean difference -0.62 , 95 % CI -1.08 to -0.16 , P = 0.009 ) [ Correction added on 7 July 2015 , after first online publication : ` Mean difference ' replaced ` Odds ratio ( OR ) ' in the preceding sentence . ]