This report is the second in a series of reports which presents the result of the PFL evaluation. The report 'Assessing the early impact of Preparing For Life at six months' contains relevant background information about the programme and serves as the foundation for this report. The six month report included a detailed description of the PFL intervention and evaluation, the PFL logic model, an explanation of the theoretical underpinnings of home visiting interventions. Also, a discussion of the outcomes at six months for other home visiting interventions, in addition to the results of the impact and implementation evaluation at six months was included. The present report focuses on information specific to the twelve month evaluation, including new measures collected as part of the twelve month interview, the results of the evaluation at twelve months, and new implementation data collected between six and twelve months. In addition, as there are now multiple waves of PFL data, the results of longitudinal analyses (dynamic analyses), which examine the impact of the programme on changes in child and parent outcomes over time, are included. (author abstract)