Relative to control caregivers , intervention caregivers at @ months were less likely to score > @ on the Edinburgh Postnatal Depression Scale ( @ % , vs @ % , adjusted odds ratio -LSB- OR -RSB- @ , @ % confidence interval -LSB- CI -RSB- @ to @ ) , spend > @ minutes attending infant wakings ( @ % vs @ % , adjusted OR @ , @ % CI @ to @ ) , or change formula ( @ % vs @ % , P < @ ) .