Study objective | Type of measure | Measures | Time point collected | Type of data |
1 | Mental health | Edinburgh Postnatal Depression Scale | Baseline, weeks 1, 6, 10, 20 and 36 | Quantitative |
2 | Mental health | Hamilton Depression Rating Scale, Structured Clinical Interview for DSM-IV Disorders | Weeks 1 and 10 | Quantitative |
Beck Depression Inventory, State Trait Anxiety Inventory, Perceived Stress Scale; Office for National Statistics Well-being Scale | Weeks 1, 6, 10, 20 and 36 | |||
3 | Social | Maternal Postpartum Attachment Scale, Parental Reflective Functioning Questionnaire | Weeks 1, 6, 10, 20 and 36 | Quantitative |
Crittenden Child-Adult Relationship)* | Baseline, weeks 10 and 36 | |||
4 | Social | University of California Los Angeles (UCLA) Loneliness Scale, Short General Self-Efficacy Scale, Multidimensional Scale of Perceived Social Support | Weeks 1, 6, 10, 20 and 36 | Quantitative |
5 | Biological | Diurnal cortisol saliva samples* | Baseline and week 10 | Quantitative |
Presession and postsession saliva samples* | Weeks 1, 6, 10 (at sessions) | |||
Hair samples | Week 10 | |||
6 | Qualitative | Focus groups with intervention groups to capture feedback from sessions and experiences from mothers in the groups, focusing on the lived experience of PND | Week 10 | Qualitative |
7 | Qualitative | Semi-structured interviews with a sub sample of the intervention group of women self-reporting particular risk factors for PND (partially informed by demographic questionnaires) | Weeks 10–20, informed by information collected at baseline | Qualitative |
*Collected from mothers and infants.
PND, postnatal depression.