

INTERSECT
The INTERSECT Dataset
Version 1 (2021-2024) of the INTERSECT dataset is stored on the UK Data Service (UKDS) study ID 9295., which can be found here. It is available for secondary analysis purposes, subject to consideration and approval by the INTERSECT Scientific Committee.
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This INTERSECT dataset includes 11,302 participants from 31 countries: Australia, Brazil, Chile, Croatia, Cyprus, Czech Republic, Estonia, Germany, Iceland, Ireland, Israel, Italy, Lithuania, Malawi, Nepal, Nigeria, Norway, Pakistan, Poland, Portugal, Romania, Saudi Arabia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, and United Kingdom. Survey variables include the City Birth Trauma Scale, Birth Satisfaction Scale-Revised, and Edinburgh Postnatal Depression Scale, as well as sociodemographic characteristics and variables related to the pregnancy, birth, infant, maternal mental health and previous trauma. The data can be used to examine relationships between any of these variables in all or a subset of countries.
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Email intersect@city.ac.uk for more information.
Previously approved applications
To prevent submissions for secondary data analyses that have already been approved, we have listed them here:
Tiago Pinto et al.
To analyse the role of lifetime potentially traumatic experiences and previous mental health problems in the association between traumatic childbirth and CB-PTSD. The sample will comprise mothers reporting traumatic childbirth experience (i.e., scores ≥ 1 on traumatic childbirth perception).
Susan Ayers et al.
To develop a short version of the City Birth Trauma Scale that can be used clinically to screen and identify women who had traumatic births and are at risk of birth-related PTSD. A secondary aim is to examine the psychometric properties of the whole scale when used across multiple countries.
Charlie Francis Pape et al.
To examine the prevalence of sexual violence on women in both low/middle and high income countries; and whether the prevalence of postnatal PTSD and birth trauma is different for those who have experienced sexual violence.
Raquel Costa et al.
To analyse the sociodemographic, obstetric, birth and mental health-related factors associated with receiving mental healthcare among mothers with CB-PTSD.
Susan Garthus-Niegel et al
To explore whether and to what extent the prevalence of the dissociative subtype of CB-PTSD predicts the symptom severity of CB-PTSD and whether there are differences for this association worldwide.
Chiara Ionio et al.
To explore and evaluate the CB-PTSD symptoms prevalence in a sample of mothers with multiple pregnancies for low-, middle- and high-income countries.
Rafa Caparros-Gonzalez et al.
To examine the prevalence of postpartum depression and comorbid depression and PTSD overall, and in HIC and LMIC countries; and to look at the association of socio-economic factors with depression and comorbidity.
Rafa Caparros-Gonzalez et al.
To study whether the maternal experience in delivery – well-being- is more noteworthy than the social support received in delivery on the symptoms of depression and anxiety related to childbirth.
Julie Jomeen et al.
The objective of the perinatal loss project is to conduct an analysis of the prevalence and symptom presentation of birth and mental health outcomes for women with perinatal loss from different income-level countries. To look at the relationship between birth outcomes/satisfaction and Birth-related PTSD, anxiety, and depression within different populations who have experienced perinatal loss.
Julie Jomeen et al.
To evaluate the role of social support during birth on depressive symptoms and anxiety.
Julie Jomeen et al.
To investigate whether immigration status is associated with an increased risk of CB-PTSD, while controlling for a range of socio-demographic, clinical, and birth-related variables.
The secondary aim is to examine the contribution of birth satisfaction and level of intervention during birth to the relationship between immigration status and CB-PTSD.
Marcia Baldisserotto et al.
To develop a Machine learning model that predicts with adequate accuracy CB- PTSD from the variables measured in INTERSECT.
Susan Ayers et al.
To understand if interpersonal and non-interpersonal traumas affect the risk of developing CB-PTSD differently. To understand if the type of past trauma influences how support during childbirth impacts on CB-PTSD.
Justine Dol et al.
RQ1: Are more adverse life events associated with higher postpartum depression scores in mothers?
RQ2: Is this association moderated by the country in which a mother gives birth?
Alissa Fox et al.
1. To assessing the correlation between EPDS scores with the subscale scores (B-E) on the City BiTS (assess convergent validity) and
2. To identify groups (phenotypes) of individuals based on EPDS and City BiTS scores (PPD; CB-PTSD; PPD+CB-PTSD; No diagnosis) and assess the probability of suicidality (using EPDS item 10) within each group.
Sandra Nakic Rados et al.
To identify distinct clinical subtypes of peripartum depression based on continuous depression scores. In addition, we aim to examine risk factors (sociodemographic, obstetric, and psychological) for different subtypes. A secondary aim is to investigate how these depression subtypes differ across low-, middle-, and high-income countries.