A systematic review of the efficacy of cognitive behavioral therapy for treating and preventing perinatal depression

Cognitive behavioral therapy in perinatal mental health: An overview of systematic reviews

AIM

The purpose of this study was to determine whether cognitive behavioral therapy (CBT) started in pregnancy can prevent depression and anxiety.

METHODS

We conducted an overview review by selecting systematic reviews (SRs) that compared CBT with usual care, no CBT, or interventions other than CBT in perinatal women. We restricted the review to studies that included randomized controlled trials. The results of included SRs were descriptively integrated according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

RESULTS

Seven SRs met our eligibility criteria. One SR was limited to CBT interventions, whereas others included psychoeducation and interpersonal psychotherapy. There was some variation in the number of sessions and timing of CBT, and whether there was a postpartum intervention. Five SRs showed that CBT reduced depression compared with usual care, an educational intervention, or no intervention. One SR that analyzed the effect on anxiety found that psychotherapy, including CBT, reduced anxiety compared with usual care or no intervention.

DISCUSSION

CBT starting from pregnancy may be effective as a preventive intervention for postpartum depression and anxiety, although the degree of effectiveness varied.

CONCLUSIONS

This overview review aimed to clarify whether CBT is effective in preventing depression and anxiety from pregnancy. CBT may be effective in reducing perinatal depression and anxiety.

Public Health Nurse-delivered Group Cognitive Behavioural Therapy for Postpartum Depression: A Randomized Controlled Trial

OBJECTIVES

To examine the effectiveness of group cognitive behavioural therapy (CBT) for postpartum depression (PPD) delivered by public health nurses with little to no previous psychiatric training at improving depression, worry, social support and the mother-infant relationship.

METHODS

Mothers (n = 141) living in Ontario, Canada with Edinburgh Postnatal Depression Scale Scores ≥10 and an infant <12 months of age were randomized to receive nine weekly 2-h sessions of in-person group CBT for PPD delivered by two public health nurses plus treatment as usual (TAU; experimental group) or TAU alone (control group). Primary outcomes were change in EPDS score and current major depressive disorder (Mini International Neuropsychiatric Interview) assessed immediately post-treatment (T2). Secondary outcomes included maternal worry, social support, and quality of the mother-infant relationship. All outcomes were assessed again six months post-treatment (T3).

RESULTS

Participants in the experimental group had statistically significantly greater reductions in PPD symptoms immediately post-treatment (T2) (B = -5.35, p < 0.01), were more likely to manifest a clinically significant improvement in EPDS scores (≥4 points; OR = 3.44, 95%CI: 1.49-7.94), and no longer have symptoms consistent with current MDD (OR = 5.31, 95% CI: 1.78-15.83). Six months post-treatment (T3), experimental group participants had higher odds of clinically significant PPD improvement (OR = 5.10, 95%CI: 1.89-13.78), while 25% of the experimental group and 70% of remaining control group participants reported current MDD (p < 0.01). Statistically significant improvements in worry and the mother-infant relationship were also observed, decreases maintained at six months post-treatment.

CONCLUSIONS

Public health nurses with little to no previous psychiatric training can be trained to deliver effective group CBT for PPD to improve depression, worry, and the mother-infant relationship. Task shifting PPD treatment with group CBT to public health nurses could improve treatment uptake and lead to better outcomes for mothers, families, and the healthcare system.(Trial Registration NCT03039530).

Resilience-enhancing interventions for antepartum depressive symptoms: systematic review

BACKGROUND

Antepartum depressive symptoms (ADS) are highly prevalent and may affect the mother and child. Cognitive-behavioural therapy and interpersonal therapy are effective psychological interventions for depression. However, low adherence and high attrition rates in studies of prevention and treatment of antepartum depression suggest that these approaches might not be entirely suitable for women with mild/moderate ADS. Considering the protective association between resilience and ADS, women with ADS might benefit more from interventions focusing on promotion of mental well-being and resilience.

AIMS

We aimed to provide an overview of studies evaluating the effectiveness of antepartum resilience-enhancing interventions targeting the improvement of ante- and postpartum depressive symptoms. We also investigated whether these interventions improve resilience and resilience factors in the peripartum period.

METHOD

We conducted a systematic review, using PRISMA guidelines. Studies were eligible for inclusion when they utilised a randomised controlled trial or quasi-experimental design, studied pregnant women with ADS, and implemented psychological interventions that (a) aimed to reduce maternal ADS and/or prevent peripartum major depression, and (b) addressed one or more psychological resilience factors.

RESULTS

Five of the six included cognitive-behavioural therapy interventions and all four mindfulness-based interventions were effective in reducing peripartum depressive symptoms and/or the incidence of depression. However, the methodological quality of most of the included studies was low to moderate. Only three studies assessed change in resilience factors.

CONCLUSIONS

Resilience-enhancing interventions might be beneficial for mental well-being of pregnant women with ADS, although more rigorously designed intervention studies are needed.

Feasibility of a Web-Based Intervention to Prevent Perinatal Depression and Promote Human Milk Feeding: Randomized Pilot Trial

BACKGROUND

Mothers who identify as Black or African American are more likely to report depressed moods in late pregnancy and early postpartum and have the lowest rates of human milk feeding compared with all other racial groups in the United States. Internet interventions offer the potential to extend preventative and supportive services as they address key barriers, particularly for those navigating the complex and vulnerable early postpartum period. However, there is limited evidence on the feasibility of such interventions for preventing perinatal mental health disorders and improving human milk feeding outcomes in Black mothers.

OBJECTIVE

This pilot study aimed to assess the feasibility and preliminary findings of a web-based cognitive behavioral therapy-based internet intervention, with and without human milk feeding education and support, to prevent perinatal depression and promote human milk feeding in Black mothers.

METHODS

Participants were Black-identifying individuals between 20 and 28 weeks of pregnancy with human milk feeding intention and mild to moderate depressive symptoms (Patient Health Questionnaire scores 5-14). Participants were randomized to either Sunnyside, a 6-week cognitive behavioral therapy-based web-based intervention, or Sunnyside Plus, which included additional education and support to promote human milk feeding. Assessments occurred at baseline, third trimester (end of antenatal treatment), 6 weeks postpartum (end of postpartum treatment), and 12 weeks postpartum. The primary focus of this randomized pilot trial was the feasibility and preliminary outcomes of mental health and human milk feeding.

RESULTS

A total of 22 tertiary-educated participants were randomized. The mean number of log-ins was 7.3 (SD 5.3) for Sunnyside and 13.8 (SD 10.5) for Sunnyside Plus. Scores of depression and anxiety measures remained below the clinical threshold for referral to treatment in both groups. All the participants initiated human milk feeding (18/18, 100%). Most participants reported at least some human milk feeding at both 6 and 12 weeks postpartum (6/7, 86%; 11/11, 100%, or 10/10, 100%, for Sunnyside and Sunnyside Plus, respectively).

CONCLUSIONS

The results suggest that tertiary-educated Black mothers at risk for perinatal depression and who intended to human milk feed were receptive to and satisfied with a web-based cognitive behavioral therapy-based internet intervention, with and without human milk feeding education and support. Preliminary findings indicate that both Sunnyside and Sunnyside Plus interventions have the potential to affect symptoms of depression, anxiety, and human milk feeding outcomes.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04128202; https://www.clinicaltrials.gov/ct2/show/NCT04128202.

Motherhood and Me (Mom-Me): The Development of an Acceptance-Based Group for Women with Postpartum Mood and Anxiety Symptoms

Untreated postpartum mood and anxiety disorders (PMADs) place women and their families at risk for negative biopsychosocial sequelae. Innovative and tailored treatments are needed to address potential disruptions in maternal functioning. Third-wave cognitive-behavioral approaches, including acceptance and commitment therapy (ACT) and dialectical behavioral therapy (DBT), hold promise for optimizing functioning given the focus on values-based living, rather than symptom reduction.

PURPOSE

The purpose of this paper is to describe the development of an innovative psychotherapy group for women with symptoms of PMADs.

METHODS

This seven-session group, Motherhood and Me (Mom-Me), includes selected skills training from ACT, DBT, and Emotion-Centered Problem-Solving Therapy.

RESULTS

Mom-Me group sessions are described, and an outline of key information (session goals, content, and homework assignments) is provided to facilitate practical implementation.

CONCLUSION

In line with third-wave approaches, this group was developed to enhance maternal functioning, which, in turn, may help women cope with psychological distress during the transition to motherhood.

Family history of psychiatric disorders as a risk factor for maternal postpartum depression: a systematic review protocol

BACKGROUND

Postpartum depression (PPD) is the most common postpartum psychiatric disorder, affecting 11-15% of new mothers, and initiatives towards early identification and treatment are essential due to detrimental consequences. Family history of psychiatric disorders is a risk factor for developing psychiatric episodes outside the postpartum period, but evidence of the association between familial risk and PPD is not clear. Hence, the objective of this systematic review is to summarize the current literature on the association between family history of psychiatric disorders and PPD.

METHODS

This protocol has been developed and reported according to the PRISMA-P guidelines for systematic reviews. A comprehensive literature search will be conducted in PubMed, Embase, and PsycINFO from inception of the databases, supplemented with citation tracking and reference screening of the included studies. Two independent authors will examine all retrieved articles for inclusion in two steps: title/abstract screening and full-text screening. Eligible studies are case-control and cohort studies reporting a risk estimate for the association between family history of psychiatric disorders and PPD. Studies will be assessed for risk of bias using the Newcastle-Ottawa Scale. The association between family psychiatry and PPD will be combined in a meta-analysis using a restricted maximum likelihood method (REML). Heterogeneity will be quantified using I² and investigated through meta-regression, subgroup and sensitivity analyses, and publication bias will be evaluated via visual inspection of a funnel plot. The overall strength and quality of the findings will be evaluated using the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach. If meta-analysis is not possible, data will be synthesized narratively in text and tables.

DISCUSSION

This systematic review will be the first to summarize current knowledge and present an overall estimate for the association between family history of psychiatric disorders and PPD. Evaluation of psychiatric family history as a PPD risk factor is essential to assist early identification of women at high risk of PPD in routine perinatal care.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO ID: 277998 (registered 10th of September 2021).

Associations of Internalized Skin Bias With Age, Adverse Psychopathology, and Health-Related Quality of Life Among Patients With Hidradenitis Suppurativa: A Cross-sectional Analysis

Importance

Hidradenitis suppurativa (HS) is a chronic autoinflammatory disease that is highly associated with affective disorders such as depression and anxiety. Recent studies have shown that patients with HS may also endorse high levels of internalized skin bias (ISB). This redirection of skin disease-related social stigma toward oneself may also play an important role in the associations between adverse psychopathology (eg, depression, anxiety) and health-related quality of life (HRQOL).

Objectives

To evaluate the associations of ISB with other core outcomes in HS and to determine if ISB may mediate the associations between adverse psychopathological outcomes and impaired HRQOL.

Design, Setting, and Participants

A cross-sectional study of adult patients with HS recruited from 1 academic medical center as well as through virtual social and recruitment networks. Eligible participants completed an online survey comprised of 4 survey instruments along with demographic and disease history information from April 1, 2021, to July 15, 2021.

Main Outcomes and Measures

Measures included the Internalized Skin Bias Questionnaire (ISBQ), Burns Anxiety Inventory, the Beck Depression Inventory-II, the Hidradenitis Suppurativa Quality of Life (HiSQOL) instrument, along with demographic and disease history information. The primary outcome was HRQOL as measured by the HiSQOL. Data were analyzed in July through August 2021.

Results

The survey was completed by 230 of 279 patients (82.4%; mean [SD] age, 39.2 [11.2] years; 209 [90.9%] identified as female, 203 [88.7%] as not Hispanic, 178 [77.7%] as White). Depression and anxiety were shown to be a substantial burden in this sample, with 56.5% of participants' scores qualifying for moderate or greater anxiety and 45.7% moderate or greater depression. The mean (SD) HRQOL scores were moderately high at 34.5 (16.7), indicating strong levels of impairment. There was a moderate correlation between ISBQ score and depression (r = 0.67); and fair correlations with HRQOL (r = 0.52) and anxiety (r = 0.56). Therefore, ISB appears to positively mediate the associations between depression and anxiety (estimated proportions of total effect that were mediated, 38.7% and 24.9%, respectively) and HRQOL. After controlling for age, disease severity, and disease duration, both ISB and anxiety were positive predictors of impaired HRQOL.

Conclusions and Relevance

This cross-sectional study found that ISB was associated with adverse psychopathology and impaired HRQOL in patients with HS. Furthermore, ISB appears to mediate the associations of depression and anxiety with HRQOL. Future studies are needed to design interventions targeted at addressing adverse psychopathology associated with ISB and improving HRQOL and well-being for patients with HS.

Effectiveness of psychological interventions in preventing postpartum depression in non-depressed women: a systematic review and meta-analysis of randomized controlled trials

Postpartum depression (PPD) is one of the most common disorders following childbirth. This systematic review and meta-analysis (SR/MA) aimed to assess the effectiveness of psychological interventions in preventing PPD in non-depressed women. PRISMA guidelines were followed. MEDLINE (Ovid and PubMed), PsycINFO, Web of Science, Scopus, CINAHL, CENTRAL, OpenGrey, Australian New Zealand Clinical Trial Registry and clinicaltrial.gov were searched. Randomized controlled trials (RCTs) conducted with pregnant or postpartum (up to 12 months) women who were non-depressed at baseline were selected. The outcomes were the incidence of PPD and/or the reduction of postpartum depressive symptoms. The standardized mean difference (SMD) using random-effect models was calculated. Sensitivity, sub-group and meta-regression analyses were performed. 17 RCTs were included in the SR and 15 in the MA, representing 4958 participants from four continents. The pooled SMD was -0.175 [95% confidence interval (CI) -0.266 to -0.083; p < 0.001] and sensitivity analyses confirmed the robustness of this result. Heterogeneity was low (I2 = 21.20%) and was fully explained by a meta-regression model including one variable (previous deliveries). The meta-regression model and MA stratified by previous deliveries indicated that interventions focused on primiparous women are more effective. There was no evidence of publication bias. Few RCTs had an overall low risk of bias. According to GRADE, the quality of evidence was moderate. Psychological interventions have very little effectiveness in preventing PPD in non-depressed women, although this effectiveness is greater in interventions focused on primiparous women. Further RCTs with a low risk of bias and more effective interventions are needed.

Anatomy of a Woebot® (WB001): agent guided CBT for women with postpartum depression

INTRODUCTION

Postpartum Depression (PPD) is common, persistent, and stigmatized. There are insufficient trained professionals to deliver appropriate screening, diagnosis, and treatment.

AREAS COVERED

WB001 is a Software as a Medical Device (SaMD) based Agent-Guided Cognitive Behavioral Therapy (AGCBT) program for the treatment of PPD, for which Breakthrough Device Designation was recently granted by the US Food and Drug Administration. WB001 combines therapeutic alliance, human-centered design, machine learning techniques, and established principles from CBT and interpersonal therapy (IPT). We introduce AGCBT as a new model of service delivery, whilst describing Woebot, the agent technology that enables guidance through the replication of some elements of human relationships. The profile describes the device's design principles, enabling technology, risk handling, and efficacy data in PPD.

EXPERT OPINION

WB001 is a dynamic and personalized tool with which patients may establish a therapeutic bond. Woebot is designed to augment (rather than replace) human healthcare providers, unlocking the therapeutic potency associated with guidance, whilst retaining the scalability and agency that characterizes self-help approaches. WB001 has the potential to improve both the quality and the scalability of care through providing support to patients on waiting lists, in between clinical encounters, and enabling automation of measurement-based care.

The effectiveness of telemedicine interventions on women with postpartum depression: A systematic review and meta-analysis

BACKGROUND

Postpartum depression (PPD) is a public health problem that has significant adverse effects on mothers, couple's relationships, newborn neurodevelopment, and child emotional and cognitive development. This study reviewed the effectiveness of telemedicine interventions in postparturient women with postpartum depression.

AIMS

To evaluate the effectiveness of telemedicine intervention in women with postpartum depression.

METHODS

Cochrane Library, PubMed, EMBASE, Web of Science, CINAHL, and PsycINFO were searched for relevant articles published between 2003 and March 2021. We also manually reviewed the reference lists of the retrieved articles. The present study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The risk of bias for individual studies was evaluated according to the Cochrane Handbook. RevMan 5.4 software was used to carry out the meta-analysis.

RESULTS

The meta-analysis included 20 randomized controlled trials with a total of 3252 patients. The results demonstrated that telemedicine was an effective intervention for treating PPD and anxiety and for improving functional impairment in women during their postpartum period.

LINKING EVIDENCE TO ACTION

This meta-analysis provided evidence that telemedicine was an effective intervention for treating PPD in women. Telemedicine also has significant effects on anxiety and improved functional impairment in women during their postpartum period. Our findings may provide accurate evidence-based guidance for postpartum women's mental health management. In the future, more high-quality studies are required for verifying these results.

Be a Mom: Patterns of Program Usage and Acceptability Among Women With Low-Risk and High-Risk for Postpartum Depression

Background

Be a Mom is a self-guided web-based intervention developed to prevent postpartum depression (PPD) symptoms and to promote maternal wellbeing, respectively among high and low-risk new mothers. This study aims to examine and compare (1) Be a Mom's patterns of usage and (2) Be a Mom's acceptability among women presenting high and low risk for PPD.

Methods

The sample was composed by 800 women who were randomized to Be a Mom [542 presenting high-risk (Postpartum Depression Predictors Inventory-Revised ≥ 5.5) and 258 presenting low-risk for PPD]. Data regarding patterns of usage were collected through the Be a Mom website. Acceptability data were collected through a brief questionnaire.

Results

27.9% of high-risk and 36.3% of low-risk women completed the program. A higher proportion of participants in the low-risk group completed Be a Mom [X(1)2 = 5.29, p = 0.021] and completed more modules [t₍₇₂₃₎ = −3.01, p = 0.003]. No significant differences were found between the groups in number of logins, minutes spent on the program, exercises completed and number of times audios were played. a higher proportion of women in the high-risk group considered that participating in Be a Mom was too demanding [X(1)2 = 8.21, p = 0.004].

Conclusions

Despite the low rates of completion, Be a Mom appears to be an acceptable option for both women with high-risk and low-risk for PPD. Lack of time seems to be the main reason for non-completion, so it is important to develop briefer versions of the program and introduce engagement strategies that may increase completion rate.

eHealth Interventions for Treatment and Prevention of Depression, Anxiety, and Insomnia During Pregnancy: Systematic Review and Meta-analysis

BACKGROUND

Pregnancy is associated with an increased risk for depression, anxiety, and insomnia. eHealth interventions provide a promising and accessible treatment alternative to face-to-face interventions.

OBJECTIVE

The objective of this systematic review and meta-analysis is to determine the effectiveness of eHealth interventions in preventing and treating depression, anxiety, and insomnia during pregnancy. Secondary aims are to identify demographic and intervention moderators of effectiveness.

METHODS

A total of 5 databases (PsycINFO, Medline, CINAHL, Embase, and Cochrane) were searched from inception to May 2021. Terms related to eHealth, pregnancy, randomized controlled trials (RCTs), depression, anxiety, and insomnia were included. RCTs and pilot RCTs were included if they reported an eHealth intervention for the prevention or treatment of depression, anxiety, or insomnia in pregnant women. Study screening, data extractions, and quality assessment were conducted independently by 2 reviewers from an 8-member research team (KAS, PRS, Hangsel Sanguino, Roshni Sohail, Jasleen Kaur, Songyang (Mark) Jin, Makayla Freeman, and Beatrice Valmana). Random-effects meta-analyses of pooled effect sizes were conducted to determine the effect of eHealth interventions on prenatal mental health. Meta-regression analyses were conducted to identify potential moderators.

RESULTS

In total, 17 studies were included in this review that assessed changes in depression (11/17, 65%), anxiety (10/17, 59%), and insomnia (3/17, 18%). Several studies included both depression and anxiety symptoms as outcomes (7/17, 41%). The results indicated that during pregnancy, eHealth interventions showed small effect sizes for preventing and treating symptoms of anxiety and depression and a moderate effect size for treating symptoms of insomnia. With the exception of intervention type for the outcome of depressive symptoms, where mindfulness interventions outperformed other intervention types, no significant moderators were detected.

CONCLUSIONS

eHealth interventions are an accessible and promising resource for treating symptoms of anxiety, depression, and insomnia during pregnancy. However, more research is necessary to identify ways to increase the efficacy of eHealth interventions for this population.

TRIAL REGISTRATION

PROSPERO (International Prospective Register of Systematic Reviews) CRD42020205954; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=205954.

The effect of nonpharmacological interventions on the mental health of high-risk pregnant women: A systematic review

OBJECTIVES

To evaluate the effect of nonpharmacological interventions on the mental health of high-risk pregnant women.

METHODS

This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 (PRISMA) statement. The Cochrane Library, Embase, CINAHL, PubMed and Web of Science databases were systematically searched for randomized controlled trials and quasi-randomized controlled trials from inception to April 2021. The quality of the studies was assessed using the Cochrane Risk of Bias Tool 2.0. Data were independently extracted and narratively synthesized.

RESULTS

Fifteen studies involving 1723 pregnant women were selected. Nonpharmacological interventions included cognitive behavioral interventions, yoga, relaxation interventions, psychological and educational support interventions, and acupressure. Cognitive behavioral interventions and yoga for high-risk pregnant women had potential benefits on the symptoms of anxiety, stress and depression. There was insufficient evidence that relaxation interventions, psychological and educational support interventions and acupressure had positive effects on these women's mental health.

CONCLUSIONS

This review showed that cognitive behavioral interventions and yoga during pregnancy may benefit women with high-risk pregnancies. However, due to methodological limitations of this review, further studies with robust methodological designs are needed to verify the efficacy.

Characterization and stratification of the correlates of postpartum depression in sub-Saharan Africa: A systematic review with meta-analysis

Postpartum depression (PPD) is a common mental health challenge in resource-constrained sub-Saharan Africa (SSA). Characterizing its correlates will aid prediction, early detection, and pre-emptive interventions. This review aimed to systematically synthesize and stratify PPD correlates in sub-Saharan Africa. The review was structured as per the Preferred Reporting Item for Systematic Reviews and Meta-Analyses. We included studies that reported the correlates of PPD in SSA. We searched PubMed, Medline, CINAHL, Academic Search Complete, and PsycINFO for relevant peer-reviewed literature. The correlates of PPD constituted the primary outcome. A random effect model was fitted to estimate the pooled correlation coefficient per correlate. The clinical relevance of correlates was stratified based on strength of correlation (r) and recurrence (f). The mean age of the participants was 27.0 ± 6.0 years, and 68.6% of participants had completed at least secondary education. The correlates of PPD in SSA were intimate partner violence (IPV) ((risk weight (rw) = 2.8; r = 0.212 (confidence interval (CI): 0.11-0.31), poor social support (PSS) (rw = 1.9; r = 0.250 (0.133-0.361)), unwanted pregnancy (UP) (rw = 1.6; r = 0.279 (CI: 0.14-0.41); I2 = 95.89), and maternal age (MA) (rw = 0.96; r = 0.27 (CI: 0.154-0.37)), among others. A cumulative risk weight of ⩾0.95 was predictive of PPD and marks the critical point at which preemptive interventions should be instituted. The stratification of risk PPD factors and computation of risk stability index are useful in identifying the clinical significant risk factors. The provision of critical risk point will simplify early detection thus facilitating cost-effectiveness. Of the correlates of PPD in SSA, IPV, PSS, UP, and MA are the most important. Targeted screening and pre-emptive interventions for women with high risk weight may be a reasonable strategy both in the short and long term.

Is collaborative care a key component for treating pregnant women with psychiatric symptoms (and additional psychosocial problems)? A systematic review

Mental disorders during pregnancy are common, with long-lasting negative effects on mother and child. Treatment of these women is challenging, because of the high incidence of additional psychosocial problems and barriers on population and healthcare level. Collaborative care, collaboration between mental health and obstetric care professionals, may help to overcome these problems. The aim of this review is to review antenatal mental health interventions and analyse the impact of collaborative care. Two independent reviewers searched for RCT's in PubMed, Embase and PsycINFO. Trials studying the effect of psychological or pharmacological interventions on the mental health of pregnant women with psychiatric symptoms (and psychosocial problems) were eligible for inclusion. Two reviewers independently abstracted data and assessed study quality and risk of bias. Each study was scored on collaborative care criteria: multi-professional approach to patient care, structured management plan, scheduled patient follow-ups and enhanced interprofessional communication. Thirty-five studies were included. Most trials studied the effect of cognitive behavioural therapy and interpersonal psychotherapy on antenatal depression. Almost all interventions met at least one collaborative care criteria. Interventions were mostly provided by multiple professionals, but interprofessional communication rarely took place. Interventions that met more criteria did not more often show a positive effect on maternal mental health. There is lack of research on antenatal psychiatric disorders other than depressive and on long-term treatment outcomes. Collaborative care is partly implemented in most current interventions, but more trials (including interprofessional communication) are needed to be conclusive whether collaborative care is a key component in antenatal mental healthcare.

Advances in pharmacotherapy for postpartum depression: a structured review of standard-of-care antidepressants and novel neuroactive steroid antidepressants

Postpartum depression is one of the most common morbidities of childbearing, yet it is underdiagnosed and undertreated with negative consequences for mother and offspring. Despite the widespread use of standard-of-care antidepressants as the mainstay of treatment for postpartum depression, there is limited evidence on their safety and efficacy due to their slow onset of action and suboptimal outcomes. The emergence of gamma-aminobutyric acidergic neuroactive steroids may offer faster response and remission times and improved patient outcomes. This article reviews the evidence base for the efficacy of standard-of-care antidepressants, hormonal therapeutics including progestins and estradiol, and gamma-aminobutyric acidergic neuroactive steroids in the treatment of postpartum depression, as well as the safety of infant exposure to these agents during lactation.

Pilot Testing a Brief Partner-Inclusive Hybrid Intervention for Perinatal Mood and Anxiety Disorders

The necessity of hybrid and more accessible options for perinatal mood and anxiety disorders (PMADs) has taken on increased urgency in the wake of the COVID-19 pandemic and its lasting impacts. In the New Family Wellness Project (NFWP), participants engage in a hybrid in-person and teletherapy six-session intervention for new parents early in their postpartum period. This small, phase 1 clinical research examined early outcomes of the NFWP's cognitive behavioral intervention on adverse mental health outcomes (i.e., perinatal depression and anxiety, overall mental illness symptoms) and adaptive outcomes and protective factors (i.e., relational health, social support, flourishing, self-efficacy). Despite a small sample size (N = 12), paired t-tests yielded significant effects for improvements in mental health symptoms at posttest, as well as marginally significant improvements in postpartum anxiety and self-efficacy. Findings suggest the brief, partner-inclusive, hybrid intervention shows promise for further study. Lessons learned from this small phase 1 clinical study and recommendations for revising the intervention prior to future trials are discussed.

A Cognitive-Behavioral Intervention for Postpartum Anxiety and Depression: Individual Phone vs. Group Format

Cognitive–behavioral interventions can effectively treat symptoms of perinatal mood and anxiety disorders (PMADs). We assessed the acceptability and effectiveness of a workbook-based intervention (What Am I Worried About? (WAWA)) comprising of cognitive–behavioral and mindfulness techniques and weekly professional guidance to address symptoms of depression, anxiety, and stress among postpartum mothers. We compared the efficacy of group versus individual telephone consultation using a pre-and post-test single group, open trial, research design in replication pilot study. A convenience sample of community-residing postpartum women (n = 34) chose between group intervention (n = 24) or individual phone consultation with a mental health professional (n = 10). Outcome measures were anxiety (GAD-7), depression, anxiety, and stress (DASS21), and postpartum depression (PPD-EPDS). After four weeks intervention, significant reductions were observed in postpartum depression, anxiety, and stress scales. Cohen’s d statistics showed medium effect sizes (0.35–0.56). A small but significantly larger change in PPD-EPDS and DASS stress scores was reported among participants who opted for the phone intervention compared to those in the group intervention. Most participants felt that the intervention was highly beneficial and would recommend it to other postpartum women. In conclusion, the WAWA intervention showed efficacy for reducing postpartum anxiety, distress, and depressive symptoms among postpartum women, with a slightly greater reduction in PPD-EPDS and stress symptoms found among those who opted for individual phone consultation. Definitive evaluation of the intervention requires a larger sample and a RCT research design with two treatment arms: telephone and group intervention.

Randomized trial examining the effect of exercise and wellness interventions on preventing postpartum depression and perceived stress

BACKGROUND

Approximately 13-19% of postpartum women experience postpartum depression and a majority report at least some stress during the postpartum phase. Traditional interventions such as psychotherapy and antidepressant medications are often not feasible or desirable. The purpose of this study was to examine two low cost, brief, accessible interventions designed to prevent postpartum depression and perceived stress among women at high risk.

METHODS

Participants (n = 450) who were on average four weeks postpartum, had a history of depression before pregnancy, and exercised less than 60 min per week were randomly assigned to one of the following three conditions: (1) 6-month telephone-based exercise intervention; (2) 6-month telephone-based wellness/support intervention (e.g., healthy eating, sleep, and perceived stress); or (3) usual care.

RESULTS

Overall, 2.4% of participants met criteria for depression at 6 months and 3.6% at 9 months with no differences between groups. At 6 months following randomization, median symptoms of depression were significantly lower among wellness participants compared to usual care participants (b = - 1.00, SE = 0.46, p = .03). Perceived stress at 6 months post-randomization was significantly lower among exercise vs. usual care participants (b = - 2.00, SE = .98, p = .04) and exercise vs. wellness participants (b = - 2.20, SE = 1.11, p = .04).

CONCLUSIONS

The wellness intervention was efficacious for preventing symptoms of depression; however, postpartum depression that met the diagnostic criteria was surprisingly low in all conditions among this at risk sample of postpartum women. Exercise interventions may have a protective effect on perceived stress among women at risk for postpartum depression. Practitioners should consider integrating exercise and wellness interventions into postpartum care.

TRIAL REGISTRATION

Clinical Trials Number: NCT01883479 (06/21/2013).

'Asking for help': a qualitative interview study exploring the experiences of interpersonal counselling (IPC) compared to low-intensity cognitive behavioural therapy (CBT) for women with depression during pregnancy

BACKGROUND

Treating depression early in pregnancy can improve health outcomes for women and their children. Current low-intensity psychological therapy for perinatal depression is a supported self-help approach informed by cognitive behavioural therapy (CBT) principles. Interpersonal counselling (IPC) may be a more appropriate low-intensity talking therapy for addressing the problems experienced by pregnant women with depression. A randomised feasibility trial (ADAGIO) has compared the acceptability of offering IPC for mild-moderate antenatal depression in routine NHS services compared to low-intensity CBT. This paper reports on a nested qualitative study which explored women's views and expectations of therapy, experiences of receiving IPC, and Psychological Wellbeing Practitioners (PWPs - junior mental health workers) views of delivering the low-intensity therapy.

METHODS

A qualitative study design using in-depth semi-structured interviews and focus groups. Thirty-two pregnant women received talking therapy within the ADAGIO trial; 19 contributed to the interview study from July 2019 to January 2020; 12 who had IPC and seven who had CBT. All six PWPs trained in IPC took part in a focus group or interview. Interviews and focus groups were recorded, transcribed, anonymised, and analysed using thematic methods.

RESULTS

Pregnant women welcomed being asked about their mental health in pregnancy and having the chance to have support in accessing therapy. The IPC approach helped women to identify triggers for depression and explored relationships using strategies such as 'promoting self-awareness through mood timelines', 'identifying their circles of support', 'developing communication skills and reciprocity in relationships', and 'asking for help'. PWPs compared how IPC differed from their prior experiences of delivering low-intensity CBT. They reported that IPC included a useful additional emotional component which was relevant to the perinatal period.

CONCLUSIONS

Identifying and treating depression in pregnancy is important for the future health of both mother and child. Low-intensity perinatal-specific talking therapies delivered by psychological wellbeing practitioners in routine NHS primary care services in England are acceptable to pregnant women with mild-moderate depression. The strategies used in IPC to manage depression, including identifying triggers for low mood, and communicating the need for help, may be particularly appropriate for the perinatal period.

TRIAL REGISTRATION

ISRCTN 11513120. 02/05/2019.

Effect of Online 1-Day Cognitive Behavioral Therapy-Based Workshops Plus Usual Care vs Usual Care Alone for Postpartum Depression: A Randomized Clinical Trial

IMPORTANCE

Postpartum depression (PPD) affects as many as 20% of mothers, yet just 1 in 10 of these women receives evidence-based treatment. The COVID-19 pandemic has increased PPD risk, reduced treatment access, and shifted preferences toward virtual care.

OBJECTIVE

To determine whether an online 1-day cognitive behavioral therapy (CBT)-based workshop added to treatment as usual improves PPD, anxiety, social support, mother-infant relationship quality, and infant temperament more than treatment as usual alone.

DESIGN, SETTING, AND PARTICIPANTS

This randomized clinical trial included 403 women with PPD who were recruited across Ontario, Canada, during the COVID-19 pandemic (April 20 to October 4, 2020). Women with Edinburgh Postnatal Depression Scale (EPDS) scores of at least 10 who were 18 years or older and had an infant younger than 12 months were eligible.

INTERVENTIONS

Women were randomly assigned to receive a live, interactive online 1-day CBT-based workshop delivered by a registered psychotherapist, psychiatrist, or clinical psychology graduate student in addition to treatment as usual (n = 202) or to receive treatment as usual and wait-listed to receive the workshop 12 weeks later (n = 201).

MAIN OUTCOMES AND MEASURES

The primary outcome was change in PPD (EPDS scores) in experimental and wait list control groups 12 weeks after baseline. Secondary outcomes included maternal anxiety (7-item Generalized Anxiety Disorder Questionnaire [GAD-7]), social support (Social Provisions Scale), quality of the mother-infant relationship (Postpartum Bonding Questionnaire), and infant temperament (Infant Behavior Questionnaire-Revised Very Short Form).

RESULTS

Participants all identified as women with a mean (SD) age of 31.8 (4.4) years. The workshop led to significant mean (SD) reductions in EPDS scores (from 16.47 [4.41] to 11.65 [4.83]; B = -4.82; P < .001) and was associated with a higher odds of exhibiting a clinically significant decrease in EPDS scores (odds ratio, 4.15; 95% CI, 2.66-6.46). The mean (SD) GAD-7 scores decreased from 12.41 (5.12) to 7.97 (5.54) after the workshop (B = -4.44; 95% CI, -5.47 to -3.38; P < .001) and participants were more likely to experience a clinically significant change (odds ratio, 3.09; 95% CI, 1.99-4.81). Mothers also reported improvements in bonding (B = -3.22; 95% CI, -4.72 to -1.71; P < .001), infant-focused anxiety (B = -1.64; 95% CI, -2.25 to 1.00; P < .001), social support (B = 3.31; 95% CI, 1.04 to 5.57; P < .001), and positive affectivity/surgency in infants (B = 0.31; 95% CI, 0.05 to 0.56; P < .001).

CONCLUSIONS AND RELEVANCE

In this randomized clinical trial, an online 1-day CBT-based workshop for PPD provides an effective, brief option for mothers, reducing PPD and anxiety as well as improving social support, the mother-infant relationship, and positive affectivity/surgency in offspring.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT04485000.

Prevention of Mental Health Difficulties for Children Aged 0-3 Years: A Review

The period of infancy and early childhood is a critical time for interventions to prevent future mental health problems. The first signs of mental health difficulties can be manifest in infancy, emphasizing the importance of understanding and identifying both protective and risk factors in pregnancy and the early postnatal period. Parents are at a higher risk of developing mental health problems during the perinatal period. An understanding of the evidence around prevention and intervention for parental anxiety and depression is vital to the process of prevention of early mental health disorders in infants and young children. Here we review the existing prevention and treatment interventions in the early years focusing on the period from conception to 3 years - the majority targeting parents in order to improve their mental health, and that of their infants. Elements of successful programs for parents include psychoeducation and practical skills training, as well as work on the co-parenting relationship, developing secure attachment, and enhancing parental reflective functioning. While both targeted and universal programs have produced strong effect sizes, universal programs have the added benefit of reaching people who may otherwise not have sought treatment. In synthesizing this information, our goal is to inform the development of integrated models for prevention and novel early intervention programs as early in life as possible.

Lack of psychotropic medication changes among mood disordered women across the peripartum period

OBJECTIVE

Peripartum depression is a leading contributor to peripartum morbidity and mortality. Despite the evidence for relative safety, many patients and providers remain reluctant to use or modify psychotropics in the peripartum period. We hypothesized that depressed women in the peripartum period taking psychiatric medications would not experience dose adjustments.

METHODS

Women with a prior history of either Major Depressive Disorder or Bipolar Affective Disorder were followed through pregnancy and the postpartum period (N = 229). Depressive symptoms were measured with the Edinburgh Postnatal Depression Scale (EPDS), with a score ≥ 13 indicating likely depression. Data analysis included descriptive statistics, chi-square tests, and logistic regression.

RESULTS

Antepartum depression was more common than postpartum depression (PPD; 29% vs. 20%); 38% of women with antepartum depression also had PPD. Regression analysis revealed that, although depressed women in pregnancy were not more likely to have a dose adjustment than nondepressed women (OR: 1.9, 95% CI: 0.8-4.6), depressed women in the postpartum were more likely to receive a medication change than nondepressed women (OR: 6.3, 95% CI: 2.0-20.4).

CONCLUSIONS

In a naturalistic study, more medication adjustments for depression occurred in the postpartum than in pregnancy. This may indicate that antepartum depression is undertreated.

An integrated parenting intervention for maternal depression and child development in a low-resource setting: Cluster randomized controlled trial

BACKGROUND

Rates of depression among Pakistani mothers are high, leading to poor developmental outcomes in their children. This study tested the effectiveness of a manualized integrated parenting program; Learning through Play Plus (LTP+) for maternal depression in Karachi, Pakistan.

METHODS

A cluster randomized control trial conducted from January 2014 to December 2015 across 120 villages in Karachi. A total of 774 depressed mothers aged 18-44 years with children aged 0-30 months old, were included. Villages were randomized to receive LTP+ added to treatment as usual (TAU) or TAU alone. Primary outcomes were severity of maternal depression at 3 and 6 months measured by the Edinburgh Postnatal Depression Scale and child socio-emotional development at 6 months measured by the Ages and Stages Questionnaire (ASQ). Secondary outcomes included maternal anxiety, quality of life, social support, parenting competence, and knowledge about child development.

RESULTS

Mothers in the LTP+ group reported significantly lower depression scores compared to those in the TAU group (6.6 vs. 13.8, effect size [ES]: -7.2; 95% confidence interval [CI]: -8.2, -6.1) at 3 and 6 months (7.2 vs. 12.00; ES: -4.6; 95% CI: -5.9, -3.4). Child socio-emotional development at 6 months was significantly better in the LTP+ group on all domains of the ASQ. There were also statistically significant improvements on all secondary outcomes at 3- and 6-month follow-up.

CONCLUSION

In low-resource settings like Pakistan, low-cost integrated parenting interventions delivered by lay health workers can provide effective treatment for depressed mothers, leading to improvements in child development.

Maternal low-intensity psychosocial telemental interventions in response to COVID-19 in Qatar: study protocol for a randomized controlled trial

Introduction

As COVID-19 is spreading, new psychological health problems are suspected to be emerging among pregnant women. Higher maternal mental health distress, including perinatal anxiety, depression, and COVID-19-specific phobia, is supposed to be increasing during the pandemic, which impacts pregnant women’s health and their infants and calls for intervention. Due to the social distancing protocols posed by the pandemic, telemental health interventions have fast become the most common form of psychosocial support for maternal mental health. However, there is no evidence of the effectiveness of maternal low-intensity psychosocial telemental interventions in improving mental health outcomes. The trial’s objective is to evaluate the clinical efficacy of telemental low-intensity psychosocial interventions in pregnant and postpartum women attending the Women Wellness and Research Centre in Qatar in the era of the COVID-19 pandemic.

Methods and analysis

The clinical trial is randomized in which pregnant women will be assigned equally through block randomization between two arms: (1) a control group and (2) an intervention group. The primary endpoint is the perinatal psychological distress, including perinatal depression, anxiety, and COVID-19 phobia in their third trimester; the secondary, tertiary, fourth, and fifth endpoints will be in the postnatal period (3–5 weeks, 2–4 months, 5–7 months, and 8–10 months). This trial involves pregnant women in their second trimester with no mental health illness history who communicate in English and Arabic and consent to participate. A sample size of 58 (29 participants per arm) is targeted.

Discussion

This study will provide recommendations about the efficacy of low-intensity psychosocial maternal telemental interventions to be implemented as a preventive service.

Trial registration

2a-ClinicalTrials.gov NCT04594525. Registered on October 20, 2020.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13063-021-05339-w.

Contemporary management of unipolar depression in the perinatal period

Introduction: There is increasing recognition that antenatal depression and postpartum depression are highly prevalent and have significant impact on maternal and child health.Areas Covered: In the initial part of the manuscript, the authors review the epidemiology of antenatal and postpartum depression and its impact on maternal and child health. The later part of the manuscript reviews the current status of the medical management and psychosocial interventions targeting perinatal depression.Expert Opinion: Perinatal depression is the focus of several studies with increasing interest in developing effective interventions. While several psychosocial interventions targeting maternal depressive symptoms during pregnancy and postpartum are available, more studies are needed to address the need for safe and efficacious strategies for the use of antidepressant medication during pregnancy and in the postpartum period.

Parent mental health and family functioning following diagnosis of CHD: a research agenda and recommendations from the Cardiac Neurodevelopmental Outcome Collaborative

Diagnosis of CHD substantially affects parent mental health and family functioning, thereby influencing child neurodevelopmental and psychosocial outcomes. Recognition of the need to proactively support parent mental health and family functioning following cardiac diagnosis to promote psychosocial adaptation has increased substantially over recent years. However, significant gaps in knowledge remain and families continue to report critical unmet psychosocial needs. The Parent Mental Health and Family Functioning Working Group of the Cardiac Neurodevelopmental Outcome Collaborative was formed in 2018 through support from an R13 grant from the National Heart, Lung, and Blood Institute to identify significant knowledge gaps related to parent mental health and family functioning, as well as critical questions that must be answered to further knowledge, policy, care, and outcomes. Conceptually driven investigations are needed to identify parent mental health and family functioning factors with the strongest influence on child outcomes, to obtain a deeper understanding of the biomarkers associated with these factors, and to better understand how parent mental health and family functioning influence child outcomes over time. Investigations are also needed to develop, test, and implement sustainable models of mental health screening and assessment, as well as effective interventions to optimise parent mental health and family functioning to promote psychosocial adaptation. The critical questions and investigations outlined in this paper provide a roadmap for future research to close gaps in knowledge, improve care, and promote positive outcomes for families of children with CHD.

A Strategic Program for Risk Assessment and Intervention to Mitigate Environmental Stressor-Related Adverse Pregnancy Outcomes in the Indian Population

The Problem: Global environmental stressors of human health include, but are not limited to, conflict, migration, war, natural disasters, climate change, pollution, trauma, and pandemics. In combination with other factors, these stressors influence physical and mental as well as reproductive health. Maternal stress is a known factor for adverse pregnancy outcomes such as preterm birth (PTB); however, environmental stressors are less well-understood in this context and the problem is relatively under-researched. According to the WHO, major Indian cities including New Delhi are among the world's 20 most polluted cities. It is known that maternal exposure to environmental pollution increases the risk of premature births and other adverse pregnancy outcomes which is evident in this population.

Response to the Problem: Considering the seriousness of this problem, an international and interdisciplinary group of researchers, physicians, and organizations dedicated to the welfare of women at risk of adverse pregnancy outcomes launched an international program named Optimal Pregnancy Environment Risk Assessment (OPERA). The program aims to discover and disseminate inexpensive, accessible tools to diagnose women at risk for PTB and other adverse pregnancy outcomes due to risky environmental factors as early as possible and to promote effective interventions to mitigate these risks. OPERA has been supported by the Worldwide Universities Network, World Health Organization (WHO) and March of Dimes USA.

Addressing the Problem: This review article addresses the influence of environmental stressors on maternal-fetal health focusing on India as a model population and describes the role of OPERA in helping local practitioners by sharing with them the latest risk prediction and mitigation tools. The consequences of these environmental stressors can be partially mitigated by experience-based interventions that build resilience and break the cycle of inter- and-transgenerational transmission. The shared knowledge and experience from this collaboration are intended to guide and facilitate efforts at the local level in India and other LMIC to develop strategies appropriate for the jurisdiction for improving pregnancy outcomes in vulnerable populations.

"We do not know how to screen and provide treatment": a qualitative study of barriers and enablers of implementing perinatal depression health services in Ethiopia

BACKGROUND

Qualitative studies evaluating maternal mental health services are lacking in Ethiopia, and the available evidence targets severe mental illnesses in the general population. We conducted a qualitative study to explore barriers to, enablers of, or opportunities for perinatal depression health services implementations in Ethiopia.

METHODS

We conducted a total of 13 face to face interviews with mental and maternal health service administrators from different levels of the Ethiopian healthcare system. We interviewed in Amharic (a local language), transcribed and translated into English, and imported into NVivo. We analysed the translated interviews inductively using thematic framework analysis.

RESULTS

The study identified: (i) health administrators' low literacy about perinatal depression as individual level barriers; (ii) community low awareness, health-seeking behaviours and cultural norms about perinatal depression as socio-cultural level barriers; (iii) lack of government capacity, readiness, and priority of screening and managing perinatal depression as organisational level barriers; and (iv) lack of mental health policy, strategies, and healthcare systems as structural level barriers of perinatal mental health implementation in Ethiopia. The introduction of the new Mental Health Gap Action Programme (mhGap), health professionals' commitment, and simplicity of screening programs were identified enablers of, or opportunities for, perinatal mental health service implementation.

CONCLUSIONS

This qualitative inquiry identified important barriers and potential opportunities that could be used to address perinatal depression in Ethiopia. Building the capacity of policy makers and planners, strengthening the mental healthcare system and governance should be a priority issue for an effective integration of maternal mental health care with the routine maternal health services in Ethiopia.

Implementation and Effectiveness of Nonspecialist-Delivered Interventions for Perinatal Mental Health in High-Income Countries: A Systematic Review and Meta-analysis

IMPORTANCE

Task sharing-or training of nonspecialist providers with no formal training in counseling-is an effective strategy to improve access to evidence-based counseling interventions and has the potential to address the burden of perinatal depression and anxiety.

OBJECTIVES

To identify the relevant implementation processes (who, what, where, and how) and to assess the effectiveness of counseling interventions delivered by nonspecialist providers for perinatal depression and anxiety in high-income countries.

DATA SOURCES

CINAHL, Ovid MEDLINE, Ovid MEDLINE In-Process, PsycINFO, Web of Science, Cochrane Central Register of Controlled Trials, and Embase through December 31, 2019. Relevant systematic reviews were also considered.

STUDY SELECTION

Randomized clinical trials of counseling interventions that assessed depression or anxiety after intervention, delivered by a nonspecialist provider for adults, and that targeted perinatal populations in a high-income country were included. Self-help interventions that did not include a provider component were excluded.

DATA EXTRACTION AND SYNTHESIS

Four researchers independently reviewed abstracts and full-text articles, and 2 independently rated the quality of included studies. Random-effects meta-analysis was used to estimate the benefits of the interventions. The Preferred Reporting Items for Systematic Reviews and Meta-analyses reporting guideline was followed.

MAIN OUTCOMES AND MEASURES

For implementation processes, the frequencies represented by a total or percentage were estimated, where the denominator is the total number of eligible trials, unless otherwise indicated. For effectiveness, primary and secondary outcome data of depression, anxiety, or both symptoms were used, with separate analyses for prevention and treatment, stratified by depression or anxiety. Subgroup analyses compared outcome types (anxiety vs depression) and study objectives (treatment vs prevention).

RESULTS

In total, 46 trials (18 321 participants) were included in the systematic review; 44 trials (18 101 participants) were included in the meta-analysis. Interventions were implemented across 11 countries, with the majority in Australia, UK, and US. Two-thirds (65%) of counseling interventions were provided by nurses and midwives, lasted a mean of 11.2 weeks (95% CI, 6.4-16.0 weeks), and most were delivered face to face (31 [67.4%]). Only 2 interventions were delivered online. A dearth of information related to important implementation processes, such as supervision, fidelity, and participant sociodemographic characteristics, was observed in many articles. Compared with controls, counseling interventions were associated with lower depressive symptoms (standardized mean difference [SMD], 0.24 [95% CI, 0.14-0.34]; 43 trials; I2 = 81%) and anxiety scores (SMD, 0.30 [95% CI, 0.11-0.50]; 11 trials; I2 = 80%). Treatment interventions were reported to be effective for both depressive symptoms (SMD, 0.38 [95% CI, 0.17-0.59]; 15 trials; I2 = 69%) and anxiety symptoms (SMD, 0.34 [95% CI, 0.09-0.58]; 6 trials; I2 = 71%). However, heterogeneity was high among the trials included in this analysis.

CONCLUSIONS AND RELEVANCE

This study found evidence in high-income countries indicating that nonspecialist providers may be effective in delivering counseling interventions. Additional studies are needed to assess digital interventions and ensure the reporting of implementation processes to inform the optimal delivery and scale-up of these services.

Internet-based behavioural activation to improve depressive symptoms and prevent child abuse in postnatal women (SmartMama): a protocol for a pragmatic randomized controlled trial

BACKGROUND

Child abuse and postnatal depression are two public health problems that often co-occur, with rates of childhood maltreatment highest during the first year of life. Internet-based behavioural activation (iBA) therapy has demonstrated its efficacy for improving postnatal depression. No study has examined whether the iBA program is also effective at preventing child abuse. This study aims to investigate whether iBA improves depressive symptoms among mothers and prevents abusive behaviours towards children in postpartum mothers in a randomized controlled trial, stratifying on depressive mood status. The study also evaluates the implementation aspects of the program, including how users, medical providers, and managers perceive the program in terms of acceptability, appropriateness, feasibility, and harm done.

METHODS

The study is a non-blinded, stratified randomized controlled trial. Based on cut-off scores validated on Japanese mothers, participants will be stratified to either a low Edinburgh Postnatal Depression Scale (EPDS) group, (EPDS 0-8 points) or a high EPDS group (EPDS ≥9 points). A total of 390 postnatal women, 20 years or older, who have given birth within 10 weeks and have regular internet-access will be recruited at two hospitals. Participants will be randomly assigned to either treatment, with treatment as usual (TAU) or through intervention groups. The TAU group receives 12 weekly iBA sessions with online assignments and feedback from trained therapists. Co-primary outcomes are maternal depressive symptoms (EPDS) and psychological aggression toward children (Conflict Tactic Scale 1) at the 24-week follow-up survey. Secondary outcomes include maternal depressive symptoms, parental stress, bonding relationship, quality of life, maternal health care use, and paediatric outcomes such as physical development, preventive care attendance, and health care use. The study will also investigate the implementation outcomes of the program.

DISCUSSION

The study investigates the effectiveness of the iBA program for maternal depressive symptoms and psychological aggression toward children, as well as implementation outcomes, in a randomized-controlled trial. The iBA may be a potential strategy for improving maternal postnatal depression and preventing child abuse.

TRIAL REGISTRATION

The study protocol (issue date: 2019-Mar-01, original version 2019005NI-00) was registered at the UMIN Clinical Trial Registry (UMIN-CTR: ID UMIN 000036864 ).

Effectiveness of digital psychotherapeutic intervention among perinatal women: A systematic review and meta-analysis of randomized controlled trials

BACKGROUND

The perinatal period is a challenging time of substantial emotional, physiological, social, and relational changes. Depression, anxiety, and stress symptoms are common, and co-exist in the perinatal period. Digital technology continues to grow at an unprecedented pace with wide application, including psychotherapeutic intervention. A growing number of meta-analyses supported the application of digital psychotherapeutic intervention across different populations, but relatively few meta- and meta-regression analyses have concentrated on perinatal women.

AIM

To evaluate the effectiveness of digital psychotherapeutic intervention on improving psychological outcomes among perinatal women and identify its essential features.

METHODS

Randomized controlled trials (RCTs) were obtained from eight databases, including Cumulative Index to Nursing and Allied Health Literature, Cochrane Library, Embase, Scopus, PsycINFO, PubMed, Web of Science, and ProQuest Dissertation and Theses from inception up until November 24, 2020. Comprehensive Meta-analysis 3.0 software was used to conduct meta- and meta-regression analyses. The Cochrane risk-of-bias tool and the Grading of the Recommendation, Assessment, Development, and Evaluation system were adopted to assess the individual and overall qualities of the evidence, respectively.

RESULTS

A total of 25 RCTs that included 3239 women were identified. Meta-analyses revealed that intervention significantly improved depression (Hedges's g = 0.49), anxiety (g = 0.25), and stress (g = 0.47) symptoms compared to the control. Subgroup analyses demonstrated that a website platform with ≥ eight therapist-guided sessions using the theoretical principle of cognitive behavioral therapy was more effective than other treatments in improving depression symptoms in postnatal women. Meta-regression analyses observed that the age of perinatal women and the type of psychotherapy also had statistically significant effects on depression symptoms. Egger's regression asymmetry tests suggested that no publication biases occurred, but the overall quality of the evidence was very low.

CONCLUSION

This review suggests that digital psychotherapeutic intervention may be a potential solution to reduce psychological problems in perinatal women. Further high-quality RCTs with large sample sizes are needed.

Universal prevention of distress aimed at pregnant women: a systematic review and meta-analysis of psychological interventions

BACKGROUND

There is sufficient meta-analytic evidence that antenatal interventions for women at risk (selective prevention) or for women with severe psychological symptoms (indicated prevention) are effective in reducing postpartum distress. However, women without risk or severe psychological symptoms might also experience distress. This meta-analysis focused on the effectiveness of preventive psychological interventions offered to universal populations of pregnant women on symptoms of depression, anxiety, and general stress. Paternal and infant outcomes were also included.

METHOD

We included 12 universal prevention studies in the meta-analysis, incorporating a total of 2559 pregnant women.

RESULTS

Overall, ten studies included depression as an outcome measure, five studies included stress, and four studies anxiety. There was a moderate effect of preventive interventions implemented during pregnancy on the combined measure of maternal distress (d = .52), on depressive symptoms (d = .50), and on stress (d = .52). The effect on anxiety (d = .30) was smaller. The effects were not associated with intervention timing, intervention type, intervention delivery mode, timing of post-test, and methodological quality. The number of studies including partner and/or infant outcomes was too low to assess their effectiveness.

CONCLUSIONS

This meta-analysis suggests that universal prevention during pregnancy is effective on decreasing symptoms of maternal distress compared to routine care, at least with regard to depression. While promising, the results with regard to anxiety and stress are based on a considerably lower number of studies, and should thus be interpreted with caution. More research is needed on preventing other types of maternal distress beyond depression. Furthermore, there is a lack of research with regard to paternal distress. Also, given the large variety in interventions, more research is needed on which elements of universal prevention work. Finally, as maternal distress symptoms can affect infant development, it is important to investigate whether the positive effects of the preventive interventions extend from mother to infant.

SYSTEMATIC REVIEW REGISTRATION NUMBER

International prospective register of systematic reviews (PROSPERO) registration number: CRD42018098861.

A smartphone-assisted brief online cognitive-behavioral intervention for pregnant women with depression: a study protocol of a randomized controlled trial

BACKGROUND

Pregnancy is strongly associated with increased risk for depression. Approximately 25% of pregnant women develop depression. Treatment for depression during pregnancy has several complexities: the use of psychiatric medications during pregnancy might result in developmental problems in the child and must be used with caution. Psychosocial interventions are effective, but they require specialized professionals. Low- and middle-income countries (LMIC) such as Brazil do not have enough mental health professionals needed to meet this demand. In this context, smartphone-based interventions show immense potential. We developed Motherly, a smartphone application (app) designed to treat maternal depression. We aim to test the efficacy of Motherly in addition to brief cognitive-behavioral therapies (CBT) to treat maternal depression.

METHODS

We will conduct a 2-arm parallel-randomized controlled clinical trial in which 70 pregnant women aged between 16 and 40 years with depression will be randomized to intervention or active control. The intervention group will have access to Motherly, a smartphone app based on three concepts: psychoeducation, behavior monitoring, and gaming elements. Motherly is composed of a package of interventions composed of modules: mental health, sleep, nutrition, physical activity, social support, prenatal/postnatal support, and educational content. The main focus of Motherly is delivering behavioral activation (BA), a brief and structured psychological treatment. The app allows participants to schedule and engage in, and monitor activities according to a plan to avoid acting exclusively according to their mood. The active control group will have access to a simplified version of the app consisting of educational content about various aspects of pregnancy, maternal physical and mental health, and infant development (BA, activity scheduling, sleep hygiene, among other functionalities, will not be present in this version). Both groups will receive four sessions of brief CBT in 8 weeks. Participants will be evaluated by assessors blind to randomization and allocation status. Assessments will occur at baseline (T0), midpoint (T1, week 4-5), posttreatment (T2, week 8), and follow-up (T3, when the child is 2 months old). Maternal mental health (prenatal anxiety, psychological well-being, perceived stress, depression, depression severity, and sleep quality), quality of life, physical activity levels, and infant developmental milestones and social/emotional problems will be measured. Our primary outcome is the change in maternal prenatal depression from baseline to posttreatment (8 weeks).

DISCUSSION

The potential of digital technology to deliver mental health interventions has been increasingly recognized worldwide. There is a growing literature on interventions using smartphone applications to promote mental health, both with or without the intermediation of a mental health professional. Our study adds to the literature by testing whether an app providing an intervention package, including CBT, psychoeducation, nutrition, physical activity, and social support, can promote maternal and child health and well-being. In particular, we aim to treat depression, for which the use of digital technologies is still scarce. Smartphone applications designed to treat maternal depression are especially relevant because of the potential to circumvent barriers that prevent pregnant women from accessing mental health care.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04495166 . Prospectively registered on July 29, 2020.

Mental disorder in pregnancy and the early postpartum

Perinatal mental illness is common, affecting up to 20% of women, but remains under-recognised and under-diagnosed. It may have adverse effects on pregnancy and neonatal outcomes, and mental disorder remains one of the leading causes of maternal death in the UK. Women with mental ill health face difficult decisions in balancing risks and benefits of treatment. Stigma related to mental disorder may lead to non-engagement with maternity care. Some disorders bring specific challenges for anaesthetists working in maternity settings and it is vital that anaesthetists have knowledge of these disorders so they may offer care which is sensitive and appropriate.

Content and Themes of Repetitive Thinking in Postnatal First-Time Mothers

Repetitive thinking (RT) predicts and maintains depression and anxiety, yet the role of RT in the perinatal context has been under-researched. Further, the content and themes that emerge during RT in the perinatal period have been minimally investigated. We recruited an online community sample of women who had their first baby within the past 12 months (n = 236). Participants completed a battery of self-report questionnaires which included four open-ended questions about the content of their RT. Responses to the latter were analyzed using an inductive thematic analysis approach. Participants reported RT about a range of unexpected emotional responses to becoming a new mother, impact on their sleep and cognitive functioning, as well as the impact on their identity, sense of self, lifestyle, achievements, and ability to function. RT was commonly experienced in first-time mothers, and the themes that emerged conveyed an overall sense of discrepancy between expectations and reality, as well as adjustment to profound change. By providing insight into the content of RT in new mothers, the findings of our study have scope to inform the content of interventions that seek to prevent and treat postnatal mental health problems, particularly those which target key psychological processes such as RT.

Perinatal Depression: Challenges and Opportunities

Perinatal depression (PND) is a major depressive episode during pregnancy or within 4 weeks after childbirth up to a year. Risk factors for PND include stressful life events, history of depression, poor social support, unplanned and unwanted pregnancies, poor relationship quality, current or previous abuse, and low socioeconomic status. This mental disorder has been shown to have negative effects on mothers' quality of life and their intimate relationships, birth outcomes, and breastfeeding likelihood, as well as long-term effects on children's cognitive and emotional development. To date, no nationally representative study has examined whether there are socioeconomic and/or racial/ethnic differences in PND. This study discusses the prevalence and risk factors for PND, as well as its health consequences for mothers and children, the reasons for its underreporting and undertreatment, the evidence for different screening instruments and different treatment options, and the existing supportive policies to address this disorder in the United States. We conclude with outlining next steps in addressing the gaps in the literature on PND.

Be a Mom, a Web-Based Intervention to Promote Positive Mental Health Among Postpartum Women With Low Risk for Postpartum Depression: Exploring Psychological Mechanisms of Change

Background: This study explored whether Be a Mom, a brief and unguided cognitive behavioral web-based intervention, was effective in promoting psychological processes (self-compassion, psychological flexibility, emotion regulation) among low-risk postpartum women. Effects of Be a Mom in psychological processes compared with a control group were examined at post-intervention and at 4-months follow-up. Additionally, this work explored whether changes in psychological processes mediated improvements in positive mental health at postintervention. Methods: In total, 367 postpartum women presenting low risk for postpartum depression were randomly assigned to the intervention group (n = 191) or to a waiting-list control group (n = 176). Results: Compared with the control group, the intervention group reported significantly greater baseline to postintervention increases in self-compassion. No significant effects were found at the 4-month follow-up. Multilevel mediation showed that self-compassion improvements significantly mediated improvements in positive mental health among the intervention group. No significant results were found for psychological flexibility or emotion regulation. Conclusions: This study suggests that Be a Mom has the potential to cultivate self-compassion among low-risk postpartum women and that this may be a key mechanism for promoting positive mental health in this context. Clinical Trial Registration: www.clinicaltrials.gov, identifier: NCT04055974.

Heart Rate Information-Based Machine Learning Prediction of Emotions Among Pregnant Women

In this study, the extent to which different emotions of pregnant women can be predicted based on heart rate-relevant information as indicators of autonomic nervous system functioning was explored using various machine learning algorithms. Nine heart rate-relevant autonomic system indicators, including the coefficient of variation R-R interval (CVRR), standard deviation of all NN intervals (SDNN), and square root of the mean squared differences of successive NN intervals (RMSSD), were measured using a heart rate monitor (MyBeat) and four different emotions including "happy," as a positive emotion and "anxiety," "sad," "frustrated," as negative emotions were self-recorded on a smartphone application, during 1 week starting from 23rd to 32nd weeks of pregnancy from 85 pregnant women. The k-nearest neighbor (k-NN), support vector machine (SVM), logistic regression (LR), random forest (RF), naïve bayes (NB), decision tree (DT), gradient boosting trees (GBT), stochastic gradient descent (SGD), extreme gradient boosting (XGBoost), and artificial neural network (ANN) machine learning methods were applied to predict the four different emotions based on the heart rate-relevant information. To predict four different emotions, RF also showed a modest area under the receiver operating characteristic curve (AUC-ROC) of 0.70. CVRR, RMSSD, SDNN, high frequency (HF), and low frequency (LF) mostly contributed to the predictions. GBT displayed the second highest AUC (0.69). Comprehensive analyses revealed the benefits of the prediction accuracy of the RF and GBT methods and were beneficial to establish models to predict emotions based on autonomic nervous system indicators. The results implicated SDNN, RMSSD, CVRR, LF, and HF as important parameters for the predictions.

Postpartum stress and protective factors in women who gave birth in the United States during the COVID-19 pandemic

OBJECTIVES

The COVID-19 pandemic has caused considerable stress throughout the world. Little is known about how postpartum women who gave birth during the early months of the pandemic were impacted. The purpose of this study was to explore and describe the associations between potential risk, protective factors, and psychological distress among postpartum women who gave birth during the early months of the COVID-19 pandemic.

METHODS

Postpartum women over the age of 18 years who gave birth in the US hospitals between March and July of 2020 and spoke English completed a survey about their experiences. Demographic and health variables were measured via self-report. Stress was measured using the Perceived Stress Scale-10. Mastery was measured with the Pearlin Mastery Scale. Resilience was measured with the Connor-Davidson Resilience Scale-2.

RESULTS

This study included 885 women. Participants had higher stress and lower resilience relative to pre-pandemic norms. Participants had high levels of depression, anxiety, and stress. Women who had an infant admitted to the neonatal intensive care unit had more stress. Income, full-time employment, and partnered relationships were associated with lower stress. Resilience and mastery were related to lower stress, depression, and anxiety. Black, Indigenous, or People of Color women showed higher stress and lower resiliency. Single women were likely to report lower levels of mastery than partnered women.

CONCLUSION

Stress, depression, and anxiety were high in postpartum women in this study. Income, partnered relationships, and employment security, along with protective traits such as mastery and resilience, may reduce the impact of stress on postpartum women in a pandemic. Care models should be modified to support women during a pandemic. Health disparities exist in postpartum stress. Future interventions should focus on building resiliency and mastery and ensuring appropriate resources are available to postpartum women in a pandemic.

A Stepped Care Model of Patient Navigation to Enhance Engagement with Perinatal Mental Health Care

During the perinatal period, women are at increased risk for developing perinatal mood and anxiety disorders (PMADs). As perinatal mental health screening efforts increase, significantly more women will be identified who require mental health services. Evidence-based treatments exist, yet many women do not receive adequate care. Patient navigation (PN) offers a promising patient-centered approach to improve treatment attendance and engagement. The purpose of this study is to describe the development of a stepped care PN service at an intensive outpatient program for women with PMADs. Our experience incorporating this model of PN revealed significant features that may guide other treatment care facilities to adopt this service to increase identification and connection to care.

A Blended Cognitive-Behavioral Intervention for the Treatment of Postpartum Depression: Study Protocol for a Randomized Controlled Trial

Despite the existence of effective treatment for postpartum depression, few women seek professional help, indicating the need for a new and innovative format of treatment that can overcome help-seeking barriers. This article presents the study protocol for a blended cognitive–behavioral intervention for the treatment of postpartum depression, by integrating face-to-face sessions with a web-based program (Be a Mom) into one treatment protocol. This study will be a two-arm, noninferiority randomized controlled trial comparing blended intervention to usual treatment for postpartum depression provided in healthcare centers. Portuguese postpartum adult women diagnosed with postpartum depression (according to the DSM-5 diagnostic criteria for major depressive disorder) will be recruited during routine care appointments in local healthcare centers and will be eligible to participate. Measures will be completed at baseline, postintervention, and at three- and six-month follow-ups. The primary outcome will be depressive symptoms. Secondary outcomes will include anxiety symptoms, fatigue, quality of life, marital satisfaction, maternal self-efficacy, and mother–child bonding. Cost-effectiveness analysis and mediator and moderator analysis will be conducted. This study will provide insight into the efficacy and cost-effectiveness of a blended psychological intervention in the Portuguese context and increase the empirically validated treatment options for postpartum depression.

Effectiveness of a guided ACT-based self-help resilience training for depressive symptoms during pregnancy: Study protocol of a randomized controlled trial embedded in a prospective cohort

Background

During pregnancy, about 10 to 20% of women experience depressive symptoms. Subclinical depression increases the risk of peripartum depression, maternal neuro-endocrine dysregulations, and adverse birth and infant outcomes. Current treatments often comprise face-to-face psychological or pharmacological treatments that may be too intensive for women with subclinical depression leading to drop-out and moderate effectiveness. Therefore, easily accessible, resilience enhancing and less stigmatizing interventions are needed to prevent the development of clinical depression. This paper describes the protocol of a prospective cohort study with an embedded randomized controlled trial (RCT) that aims to improve mental resilience in a sample of pregnant women through a self-help program based on the principles of Acceptance and Commitment Therapy (ACT). Maternal and offspring correlates of the trajectories of peripartum depressive symptoms will also be studied.

Methods

Pregnant women (≥ 18 years) receiving care in Dutch midwifery practices will participate in a prospective cohort study (n ~ 3500). Between 12 and 18 weeks of pregnancy, all women will be screened for depression with the Edinburgh Postnatal Depression Scale (EPDS). Women with an EPDS score ≥ 11 will be evaluated with a structured clinical interview. Participants with subclinical depression (n = 290) will be randomized to a 9-week guided self-help ACT-training or to care as usual (CAU). Primary outcomes (depressive symptoms and resilience) and secondary outcomes (e.g. anxiety and PTSD, bonding, infant development) will be collected via online questionnaires at four prospective assessments around 20 weeks and 30 weeks gestation and at 6 weeks and 4 months postpartum. Maternal hair cortisol concentrations will be assessed in a subsample of women with a range of depressive symptoms (n = 300). The intervention’s feasibility will be assessed through qualitative interviews in a subsample of participants (n = 20).

Discussion

This is the first study to assess the effectiveness of an easy to administer intervention strategy to prevent adverse mental health effects through enhancing resilience in pregnant women with antepartum depressive symptomatology. This longitudinal study will provide insights into trajectories of peripartum depressive symptoms in relation to resilience, maternal cortisol, psychological outcomes, and infant developmental milestones.

Trial registration

Netherlands Trial Register (NTR), NL7499. Registered 5 February 2019.

Medication-Assisted Treatment for Opioid Use Disorder in Pregnancy: Practical Applications and Clinical Impact

Importance

Opioid use disorder is increasingly common in the United States and affects many pregnancies. Given the rise in pregnancies complicated by opioid use, providers should understand the diagnosis and management of opioid use disorder in pregnancy.

Objective

This article focuses on screening for opioid misuse, selecting appropriate treatment for patients, initiating medication-assisted treatment in the inpatient setting, and providing appropriate peripartum care.

Evidence Acquisition

A PubMed search was undertaken using the following search terms: "opioid use disorder", "pregnancy," "medication assisted treatment," "buprenorphine," "methadone," "heroin," "addiction," "neonatal abstinence syndrome," and "detoxification." The search was limited to the English language publications, with most being published after 2000.

Results

All women should be screened for opioid use disorder during pregnancy. Opioid use has profound effects on the mother and infant. Medication-assisted treatment is the standard of care for pregnant women with opioid use disorder. Patients will require a multidisciplinary approach to management in the intrapartum and postpartum period.

Conclusions

Conclusions

Opioid use disorder is a common, chronic condition with significant implications during pregnancy. Recognition and appropriate treatment of this disorder can optimize maternal and fetal outcomes.

Conclusions

Obstetricians are increasingly being challenged to manage pregnancies complicated by opioid use disorder and should be proficient in providing safe and effective care.

Edinburgh Postnatal Depression Scale scores at 2-week post-partum may reflect those at 4-week post-partum: A single-center retrospective observational study

AIM

Most Japanese institutions screen for post-partum depression (PPD) using the Edinburgh Postnatal Depression Scale (EPDS) at outpatient visits conducted at 2- and 4-week post-partum, but there are no published data on the usefulness of EPDS scores 2-week post-partum. In the present study, relationships between 2-week post-partum EPDS scores and 4-week post-partum EPDS scores were investigated to determine whether 2-week scores may facilitate early intervention in high-risk mothers.

METHODS

A retrospective analysis of 451 deliveries from 2017 to 2019 was conducted at a single institution. EPDS scores were obtained using the Japanese EPDS 2- and 4-week post-partum, in conjunction with other perinatal data from medical records.

RESULTS

In total, 334 of 451 mothers (74.1%) completed the EPDS at both 2- and 4-week post-partum and were included in the analysis. Of 48 who had higher scores 2-week post-partum, 21 (43.8%) continued to be at high risk of PPD. Of 284 who had lower scores 2-week post-partum, 9 (3.2%) transitioned to scores indicating high risk. Women considered high-risk 4-week post-partum tended to have exhibited higher scores 2-week post-partum. Women who had experienced more deliveries tended to exhibit lower scores, and psychiatric illness was strongly associated with higher EPDS scores (odds ratio 11.2, 95% confidence interval 3.7-33.8, P < 0.01).

CONCLUSION

Two-week EPDS scores closely reflected 4-week scores, and may facilitate early intervention to prevent PPD. Primiparous mothers and those with a history of psychiatric illness should be followed-up closely.

Effectiveness of a psycho-educational intervention for expecting parents to prevent postpartum parenting stress, depression and anxiety: a randomized controlled trial

BACKGROUND

The first months postpartum can be challenging for parents, leading to elevated symptoms of parenting stress, depression and anxiety. In turn, distressed parents are at higher risk for providing suboptimal quality of caregiving. As psychoeducational interventions can be effective in reducing psychological distress, the goal of this randomized controlled trial was to examine the effectiveness of low-intensity universal psychoeducational program to prevent postpartum parenting stress, and to enhance parental well-being and caregiving quality.

METHOD

Between 26 and 34 weeks of pregnancy, 138 pregnant women and 96 partners were randomized to the intervention or a waitlist control group. The intervention consisted of a booklet, a video, a home visit, and a telephone call. Information was provided on (1) sensitive responsiveness, adapting to the parental role, and attending to own needs; (2) crying patterns; (3) feeding (arrangements); and (4) sleeping (arrangements). The primary outcome was parenting stress postpartum. Secondary outcomes were additional measures of distress (depression and anxiety), parental well-being, and caregiving quality.

RESULTS

Both groups showed a rise in distress after birth. No between-group differences were observed on parenting stress, nor on the secondary outcomes. The intervention was rated as useful and of added value by the parents.

CONCLUSION

This study offered no evidence that our universal prevention program was effective in decreasing parental distress or in increasing caregiving quality. However, parents found aspects of the intervention useful. More research is needed, including a longer period of follow-up as well as observational measures of parents' responsiveness.

TRIAL REGISTRATION

This trial has been registered on 15 September 2016 in the Netherlands National Trial Register, ID: NTR6065, https://www.trialregister.nl/trial/5782 .