Randomization
RECRUITMENT
Study nurses were midwives employed in the concerned hospital department who volunteered to collaborate in the INTER-ACT study. They were trained by research staff in recruiting and including participants, as well as collecting and reporting data from the medical records. At time of recruitment and inclusion, both participants and study nurses were blinded for randomization. Study nurses entered the data of the recruited participants into the electronic Case Report Form (eCRF) ‘Castor’ (