The objective of the impact evaluation is to test the intervention logic of the priority axis 4 ‘Health and Social Care’ of the INTERREG VA Northern Ireland – Ireland - Western Scotland programme and, in line with the provisions of the evaluation plan , determine: 1. the effectiveness of the programme, i.e. the attainment of the specific objectives set and the intended results; 2. the efficiency in terms of relation between the funding disbursed and the results achieved; 3. the impact and the programme contribution to the end-objectives of EU Cohesion Policy. The evaluation is longitudinal and identifies relevant lessons for the remainder of the programme and potential future programming periods.