Study	Reason for exclusion
Bonovich 1990	This trial examined an intervention in the antenatal period.
Dowding 2011	This study focused on the design and evaluation of an algorithm for the diagnosis of labour. Not a psychosocial or educational intervention. Not a randomized control trial.
Fenwick 2015	This intervention aimed is to reduce women's fear of birth. The scope of this review is specifically about teaching women how to recognise and cope with the latent phase of labour. This study did not match those criteria.
IRCT138903063078N4	Not a randomized control trial.
Janssen 2013	This study focused on the development of the Early Labour Experience Questionnarie (ELEQ). No investigation effect of psychosocial and educational interventions.
Jesse 2015	This study used the cognitive behavioral interventions to reduce risk of antepartum depression.
Karp 2013	This study assessed breastfeeding initiation. The timing of the intervention was not onset of labour nor antepartum: "the nurse home visits and augmented standard prenatal care through 48 hours postpartum".
Khooshide 2015	This trial examined an intervention in the antenatal period.
Lumluk 2011	Not a randomized control trial. The study design was a quasi‐randomised trial. Participants were selected by their date of attendance according to weekly scheduled visits.
Magriples 2015	This study assessed the effects of pregnancy and postpartum weight trajectories. Women completed interventions at 4 time points: during pregnancy in the second and third trimester as well as postpartum at 6 months and 12 months.
Memon 2015	Not a randomized control trial. The study followed an exploratory quasi‐experimental design. The overall population of 283,324 comprising 35,641 households located in the study was allocated to intervention and control areas based on geographical proximity.
Toohill 2014	The intervention aimed to review women's current expectations and feelings around fear of childbirth, and to encourage women to express their feelings. This program focused explicitly on the fear of childbirth. This study did not match the criteria or outcomes for this review.
Werner 2016	The goal of this study was to examine the effectiveness of a new protocol to prevent postpartum depression. This intervention did not help women during the latent phase of labour. The participants received assessments and interventions between 18 and 36 hours after giving birth, at 2 weeks, 6 weeks, 10 weeks and 16 weeks postpartum.
Zocco 2007	This study assessed the obstetric triage system. The intervention was to assign women to the triage room, and did not include any support intervention.