A comparative evaluation of community treatments for post-partum depression: implications for treatment and management practices

Effectiveness of interpersonal psychotherapy in comparison to other psychological and pharmacological interventions for reducing depressive symptoms in women diagnosed with postpartum depression in low- and middle-income countries: A systematic review

Background

Postpartum depression (PPD) is a condition that can affect any woman regardless of ethnicity, age, party, marital status, income, and type of delivery. This condition is highly prevalent worldwide. PPD, if not treated timely, can affect the maternal-child bond and can have a detrimental impact on the future cognitive, emotional, and behavioral development of the child. Interpersonal psychotherapy (IPT) has been reported as an effective treatment of PPD in previous studies as this focuses on relationship and social support issues. Previous reviews conducted in developed nations have reported the superior efficacy of IPT in comparison to other treatment options. There is no systematic review conducted in low to middle-income countries on the efficacy of IPT on PPD. Therefore it was necessary to undertake a systematic review to assess the effectiveness of IPT in reducing the depression among postpartum women in low and middle-income countries (LMICs).

Objectives

The main aim of this systematic review was to assess the effectiveness of IPT alone or in conjunction with pharmacological therapy and/or other psychological and psychosocial interventions, in reducing depressive symptoms among women diagnosed with PPD residing in LMICs.

Search Methods

The systematic search encompassed several prominent databases and grey literature. Furthermore, experts specializing in the field of IPT were consulted to identify any relevant studies conducted in LMICs that fulfilled the predetermined eligibility criteria. The most recent search update was performed in July 2022.

Selection Criteria

The PICOS criteria were meticulously defined for this review as described. Participants: Postpartum women diagnosed with PPD in LMICs were included. Intervention: IPT either as a standalone treatment or in conjunction with pharmacological therapy was included. Comparison: any form of psychological therapy or pharmacological therapy, whether administered individually or in combination, was considered for comparison. Study designs: experimental and quasi-experimental, factorial designs, and quantitative components (experimental, quasi-experimental, factorial designs) of mixed methods designs were eligible to be included. Studies with single-group study designs and qualitative studies were excluded from the review.

Data Collection and Analysis

Two reviewers from our team conducted a rigorous screening process to determine the eligibility of articles for inclusion. This involved an initial evaluation of titles and abstracts, followed by a comprehensive assessment of the full text of selected articles. In instances where discrepancies arose between the two reviewers, resolution was achieved through discussion or consultation with a third author to establish a consensus. Following the screening process, two team members independently extracted pertinent information and data from the studies that met the inclusion criteria. The treatment effect of the intervention, in comparison to the control group, was subsequently analyzed utilizing the fixed effects model taking into account the small number of studies.

Main Results

A total of 17,588 studies were identified from various databases, and 6493 duplicate studies were removed. Subsequently, 9380 studies underwent independent title and abstract screening resulting in the exclusion of 9040 studies. 345 full texts were thoroughly assessed leading to the exclusion of 341 studies, finally including 4 studies for review. The four included trials were randomized trials and comprised a total sample size of 188 women diagnosed with PPD residing in LMICs. Among these studies, three compared IPT with usual treatment, while one study compared IPT with antidepressant medications (ADMs). In terms of the providers of IPT, in one study, IPT was administered by nurses, while psychologists delivered IPT in another study. In one study, community health workers were responsible for providing IPT. However, in one study, information regarding the specific providers of IPT was not available or reported. The primary outcome measure reported in all four studies was depression, assessed using the Edinburgh Postnatal Depression Scale (EPDS). The geographical distribution of the studies included; one conducted in Zambia, one in Kenya, one in Pakistan, and one in Iran. Out of the four studies, three were included in the meta-analysis, as missing data from one study could not be obtained. Based on the overall treatment effect, it was found that depression scores decreased significantly more in the IPT group compared to other interventions (usual treatment or ADMs) (standardized mean difference [SMD] -0.62, 95% confidence interval [CI] (-1.01, -0.23), Z = 3.13 (p = 0.002), χ 2 = 49.49; df = 2; p < 0.00001; I 2 = 96%; 3 studies, n = 136). Out of the three studies, two studies compared the effectiveness of IPT in reducing depression scores specifically when compared to the usual treatment, and in both studies, depression scores were reduced significantly in the IPT group as compared to the usual treatment group. Only one study directly compared the effectiveness of IPT with ADM, reporting that IPT was more effective than ADM in reducing depression scores among postpartum women. Regarding adverse outcomes, only one study reported suicidal ideation with one participant in the IPT group and two in the ADM group (RR 0.50, 95% CI (0.05, 5.30), p = 0.56, n = 78). The same study reported seven participants in the ADM group had adverse drug reactions as compared to none in the IPT group (RR 15.0, 95% CI (0.89, 254), p = 0.06, n = 78).

Authors' Conclusions

Our comprehensive search yielded a limited number of four studies conducted in such settings. Despite the scarcity of available evidence, the findings collectively suggest that IPT is indeed an effective treatment for reducing PPD when compared to usual treatment and pharmacological therapy. However given the low certainty of evidence, there is a need for further research in the form of well-designed randomized controlled trials with larger sample sizes and a reduced risk of bias. Such studies would greatly contribute to enhancing the strength and reliability of the evidence base regarding the effectiveness of IPT in the context of PPD in LMICs. The knowledge generated from future research endeavors would be highly valuable in guiding the development of more affordable and cost-effective treatment approaches for PPD in resource-limited settings.

Using Matching-Adjusted Indirect Comparisons and Network Meta-analyses to Compare Efficacy of Brexanolone Injection with Selective Serotonin Reuptake Inhibitors for Treating Postpartum Depression

BACKGROUND

Brexanolone injection, the first therapy approved by the US FDA for the treatment of postpartum depression (PPD) in adults, has been shown to produce a significantly greater decrease in the Hamilton Rating Scale for Depression (HAM-D) total score than placebo in randomised controlled trials (RCTs) of women with PPD.

OBJECTIVES

Given the rapid effect of brexanolone injection (within 60 h) sustained throughout the length of the trials (30 days), we sought to compare its efficacy data against selective serotonin reuptake inhibitors (SSRIs), the class of antidepressants most commonly prescribed for PPD, using HAM-D and Edinburgh Postnatal Depression Scale (EPDS) outcomes from currently available RCTs.

METHODS

We extracted data from 26 studies identified in a systematic literature review of pharmacological and pharmacological/nonpharmacological combination therapies in PPD. Six studies were suitable to form evidence networks through which to perform indirect treatment comparisons (ITCs) of HAM-D and EPDS outcomes between brexanolone and SSRIs. Having assessed the comparability and suitability of the available evidence for analysis, we discovered significant heterogeneity in the study designs, most notably in the placebo arms of the trials. We therefore conducted matching-adjusted indirect comparisons (MAICs) between brexanolone and the placebo arms of comparator studies, subsequently using the MAIC results of brexanolone versus placebo, and results for SSRIs versus placebo, to form ITCs of brexanolone versus SSRIs at three separate time points-day 3, week 4 and last observation. ITCs were calculated as the differences in change from baseline (CFB) in HAM-D and, separately, CFB in EPDS, between treatments, and reported with 95% confidence intervals (CIs).

RESULTS

For all time points, MAICs showed larger differences in CFB for brexanolone compared with SSRIs. Differences (95% CIs) between brexanolone and SSRIs were 12.79 (8.04-17.53) [day 3], 5.87 (- 1.62 to 13.37) [week 4] and 0.97 (- 6.35 to 8.30) [last observation] for the HAM-D. For the EPDS, the differences in CFB were 7.98 (5.32-10.64) [day 3], 6.35 (3.13-9.57) [week 4] and 4.05 (0.79-7.31) [last observation]. Other analytical approaches are also presented to demonstrate the similarity of results, using a network meta-analysis approach, and the importance of using the MAIC method to control for the important heterogeneity between placebo arms.

CONCLUSIONS

Acknowledging the limitations of ITCs and this evidence base, when compared with SSRIs, these analyses suggest that brexanolone demonstrated larger differences in CFB for both patient- and clinician-reported PPD outcomes and at all investigated time points after adjusting for differences between placebos in the included studies.

Treatment of maternal depression in urban slums of Karachi, Pakistan: A randomized controlled trial (RCT) of an integrated maternal psychological and early child development intervention

BACKGROUND

Maternal depression is a major public health problem. This may affect a mother's ability to provide adequate care for the child. The objective of this study was to evaluate the effectiveness of the Learning through Play Plus program (LTP Plus) - a parenting program integrated with Cognitive Behaviour Therapy (CBT).

METHODS

A total of 247 women with symptoms of depression in Karachi, Pakistan were assigned randomly to either LTP Plus or routine care (Clinical Trials Identifier: NCT00835016). Symptoms of maternal depression were measured using the Edinburgh Postnatal Depression Scale (EPDS) at 3 and 6 months after baseline.

RESULTS

At 3 months, there was a significant reduction in the EPDS scores in the intervention group compared to the routine group (adjusted mean difference [AMD] -3.65, 95% CI -6.14 to -1.15, p <0.004). This effect was sustained at 6 months (AMD -2.62, 95% CI -4.43 to -0.81, p<0.005). These women also reported less parental distress and disability. There was also a significant improvement in maternal knowledge about child development at 6 months.

CONCLUSION

There was a significant reduction in depression among women who received the group parenting program LTP Plus. This intervention has the potential to be scaled up and integrated with mother and child health programs.

Prevention and treatment of postnatal depression

Postnatal depression is a common condition that may have a significant negative impact on both infant and mother, often remaining undiagnosed and untreated. Development of effective means of detection, prevention and treatment of postnatal depression is a major health challenge. The objective of this article is to critically review pharmacological, psychological and psychosocial approaches of prevention and treatment for postnatal depression. There is little evidence of short-term success for preventive interventions and some evidence of short-term success for treatment interventions. No preventive or therapeutic studies, however, have provided evidence for long-term success. There is a need for future research into the prevention and treatment of postnatal depression including the assessment of long-term effects on the child's development as well as feasibility in relation to cost-effectiveness.

Is group cognitive behaviour therapy for postnatal depression evidence-based practice? A systematic review

BACKGROUND

There is evidence that psychological therapies including cognitive behaviour therapy (CBT) may be effective in reducing postnatal depression (PND) when offered to individuals. In clinical practice, this is also implemented in a group therapy format, which, although not recommended in guidelines, is seen as a cost-effective alternative. To consider the extent to which group methods can be seen as evidence-based, we systematically review and synthesise the evidence for the efficacy of group CBT compared to currently used packages of care for women with PND, and we discuss further factors which may contribute to clinician confidence in implementing an intervention.

METHODS

Seventeen electronic databases were searched. All full papers were read by two reviewers and a third reviewer was consulted in the event of a disagreement on inclusion. Selected studies were quality assessed, using the Cochrane Risk of Bias Tool, were data extracted by two reviewers using a standardised data extraction form and statistically synthesised where appropriate using the fixed-effect inverse-variance method.

RESULTS

Seven studies met the inclusion criteria. Meta-analyses showed group CBT to be effective in reducing depression compared to routine primary care, usual care or waiting list groups. A pooled effect size of d = 0.57 (95% CI 0.34 to 0.80, p < 0.001) was observed at 10-13 weeks post-randomisation, reducing to d = 0.28 (95% CI 0.03 to 0.53, p = 0.025) at 6 months. The non-randomised comparisons against waiting list controls at 10-13 weeks was associated with a larger effect size of d = 0.94 (95% CI 0.42 to 1.47, p < 0.001). However due to the limitations of the available data, such as ill-specified definitions of the CBT component of the group programmes, these results should be interpreted with caution.

CONCLUSIONS

Although the evidence available is limited, group CBT was shown to be effective. We argue, therefore, that there is sufficient evidence to implement group CBT, conditional upon routinely collected outcomes being benchmarked against those obtained in trials of individual CBT, and with other important factors such as patient preference, clinical experience, and information from the local context taken into account when making the treatment decision.

Outcomes from implementing systematic antepartum depression screening in obstetrics

This study was developed to evaluate the feasibility of implementing systematic depression screening in a large obstetric practice and to evaluate the degree that detection and referral led to linkage with behavioral healthcare. Depression screening was conducted using the Edinburgh Postnatal Depression Scale, administered at the initial pregnancy care appointment. Patients at or above a predetermined score of 14 were advised to seek further behavioral health assessment through the patient's behavioral healthcare coverage. Within 4 weeks of screening, those referred were contacted by telephone, by clinic staff, to determine whether they had pursued behavioral healthcare as recommended. Limited available data for newly established postdelivery screening were similarly evaluated. All 2,199 newly presenting pregnant women who were seen in our obstetric clinics from September 2008 to May 2009 were screened for depression, and 102 (4.6%) scored at or above an EPDS of 14. Follow-up calls revealed that none had pursued further behavioral health assessments. Of these 2,199, screening and follow-up data were available for 569 women at their 6-week postdelivery visit. Of these, 28 (4.9%) were above EPDS of 14, and 5 (17.9%) reported pursuit of further behavioral healthcare following screening and referral. Peripartum depression can be addressed with systematic screening, and the electronic medical record can readily be used to monitor results. Detection and referral at the beginning of pregnancy did not lead to intended linkage with behavioral healthcare, but detection and referral postdelivery had a modest influence. Barriers to pursuing behavioral healthcare need to be discovered and addressed.

Group treatment for postpartum depression: a systematic review

Postpartum depression (PPD) is a serious public health problem affecting 10% to 15% of women during the first year after delivery with negative consequences for both mother and infant. There is a need for evidence-based interventions to treat this disorder. Thus, the purpose of this study was to systematically review the literature regarding group treatment for PPD to determine the current state of knowledge regarding the efficacy of this treatment modality for reducing depressive symptoms in postpartum women. A systematic search of published and unpublished literature using the electronic databases Medline, CINAHL, PsycINFO, Cochrane Database, Cochrane Central Register of Controlled Trials, Current Controlled Trials, and Dissertation Abstracts through March 2011, supplemented by hand searches, identified 11 studies which met inclusion criteria: six were randomized controlled trials and five were non-randomized trials which utilized non-equivalent control or comparison groups. All but one study showed statistically significant improvement in depression scores from pretreatment to post-treatment, suggesting that group treatment is effective in reducing PPD symptoms. The review provides initial support for the role of group therapy in the treatment of PPD; however, caution is advised in making generalized interpretations of the findings as there was considerable heterogeneity of the studies included and the quality of the studies was mixed. Overall, the review reveals significant gaps in the current evidence base for group treatment for PPD and recommendations for further research is discussed.

Treating postnatal depressive symptoms in primary care: a randomised controlled trial of GP management, with and without adjunctive counselling

BACKGROUND

Postnatal depression (PND) is under-diagnosed and most women do not access effective help. We aimed to evaluate comparative management of (PND) following screening with the Edinburgh Postnatal Depression Scale, using three best-practice care pathways by comparing management by general practitioners (GPs) alone compared to adjunctive counselling, based on cognitive behavioural therapy (CBT), delivered by postnatal nurses or psychologists.

METHODS

This was a parallel, three-group randomised controlled trial conducted in a primary care setting (general practices and maternal & child health centres) and a psychology clinic. A total of 3,531 postnatal women were screened for symptoms of depression; 333 scored above cut-off on the screening tool and 169 were referred to the study. Sixty-eight of these women were randomised between the three treatment groups.

RESULTS

Mean scores on the Beck Depression Inventory (BDI-II) at entry were in the moderate-to-severe range. There was significant variation in the post-study frequency of scores exceeding the threshold indicative of mild-to-severe depressive symptoms, such that more women receiving only GP management remained above the cut-off score after treatment (p = .028). However, all three treatment conditions were accompanied by significant reductions in depressive symptoms and mean post-study BDI-II scores were similar between groups. Compliance was high in all three groups. Women rated the treatments as highly effective. Rates of both referral to the study (51%), and subsequent treatment uptake (40%) were low.

CONCLUSIONS

Data from this small study suggest that GP management of PND when augmented by a CBT-counselling package may be successful in reducing depressive symptoms in more patients compared to GP management alone. The relatively low rates of referral and treatment uptake, suggest that help-seeking remains an issue for many women with PND, consistent with previous research.

Postpartum depression and adolescent mothers: a review of assessment and treatment approaches

Postpartum depression (PPD) affects a significant proportion of adolescent mothers. Adolescence presents unique challenges that may make the young mother more vulnerable than her adult counterparts to PPD. PPD impacts a mother's ability to care for her infant and has been associated with adverse effects on child development. A review of the literature on adolescent PPD was undertaken. The prevalence and the effects of PPD are reviewed, common screening instruments for PPD are compared, and the results of treatment outcome studies are highlighted. There is a need for randomized controlled studies of interventions for adolescents with PPD. Findings from treatment outcome studies with adults with PPD and pregnant adolescents who are depressed suggest that psychosocial interventions may also be effective for adolescents with PPD. Issues in assessment and treatment of PPD among adolescents are considered.

Psychosocial and psychological interventions for treating postpartum depression

BACKGROUND

Postpartum depression is a major health issue for many women from diverse cultures. While pharmacological interventions are an effective treatment for depression, mothers are often reluctant to take antidepressant medication due to concerns about breast milk transmission or potential side-effects. It is important that non-pharmacologic interventions be evaluated for use with postpartum women experiencing depressive symptomatology.

OBJECTIVES

Primary: to assess the effects of all psychosocial and psychological interventions compared with usual postpartum care in the reduction of depressive symptomatology.Secondary: to examine (1) the effectiveness of specific types of psychosocial interventions; (2) the effectiveness of specific types of psychological interventions; (3) the effectiveness of specific types of psychosocial interventions versus psychological interventions; (4) the effects of intervention mode (e.g., individual versus group-based interventions); and (5) the effects of sample selection criteria (e.g., targeting women with clinically diagnosed depression versus self-reported depressive symptomatology).

SEARCH STRATEGY

CCDANCTR-Studies and CCDANCTR-References were searched on 1/8/2007, the Cochrane Pregnancy and Childbirth Review Group trials register, CENTRAL, MEDLINE (1966 to 2006), EMBASE (1980 to 2006) and CINAHL (1982 to 2006) using various combinations of the terms 'postpartum/postnatal depression.' Secondary references and experts in the field were used to identify other published or unpublished trials.

SELECTION CRITERIA

All published, unpublished, and ongoing randomised controlled trials and quasi-randomised trials of psychosocial or psychological interventions where the primary or secondary aim was a reduction in depressive symptomatology.

DATA COLLECTION AND ANALYSIS

Both review authors participated in the evaluation of methodological quality and data extraction. Additional information was sought from several trial researchers. Results are presented using relative risk for categorical data and weighted mean difference for continuous data.

MAIN RESULTS

Ten trials met the inclusion criteria, of which nine trials reported outcomes for 956 women. Any psychosocial or psychological intervention, compared to usual postpartum care, was associated with a reduction in the likelihood of continued depression, however measured, at the final assessment within the first year postpartum. Both psychosocial and psychological interventions were effective in reducing depressive symptomatology. Trials selecting participants based on a clinical diagnosis of depression were just as effective in decreasing depressive symptomatology as those that enrolled women who met inclusion criteria based on self-reported depressive symptomatology.

AUTHORS' CONCLUSIONS

Although the methodological quality of the majority of trials was, in general, not strong, the meta-analysis results suggest that psychosocial and psychological interventions are an effective treatment option for women suffering from postpartum depression. The long-term effectiveness remains unclear.

Screening for postnatal depression in routine primary care: properties of the Edinburgh Postnatal Depression Scale in an Australian sample

OBJECTIVES

First, to explore the utility of the Edinburgh Postnatal Depression Scale (EPDS) in routine primary care through a large community screening program. Next, to compare administration of a second EPDS versus the Beck Depression Inventory (BDI) in identifying postnatal depression in the prescreened population.

METHOD

Screening with the EPDS through Maternal and Child Health Centres at 4 months post-partum. Women scoring > or = 12 were assessed against DSM-IV criteria and completed a BDI and a second EPDS. These data were subjected to receiver operating characteristic (ROC) analyses.

RESULTS

Of 4148 screened, 533 (12.8%) scored > or = 12. Of these, 344 were assessed against DSM-IV criteria: 193 (56%) - major depressive disorder; 67 (20%) - other diagnoses that incorporated depression. Positive predictive value at screening was therefore 76%. Another 45 (13%) had non-depressive disorders and 39 (11%) were psychiatric non-cases. The BDI was the better diagnostic instrument in the prescreened population, having a significantly higher efficiency as quantified by ROC curve analysis, though the absolute difference in efficiency was small (approximately 6%).

CONCLUSIONS

Screening with the EPDS integrated well into routine primary care. Two-step screening offers one way of achieving acceptable balances of operational simplicity and diagnostic accuracy.

The relationship of maternal attributes, resources, and perceptions of postpartum experiences to depression

The relationships of maternal attributes, resources, and perceptions of the postpartum experience to postpartum depression (PPD) were examined. One hundred and forty-three mothers completed measures of maternal attributes, resources, and perceptions of the postpartum experience, as well as depressed mood and clinical depression symptoms. Results from canonical correlation analysis revealed two patterns. Pattern 1: Women without history of depression, more emotional support from partners, higher parenting evaluation, lower centrality of the infant in the mother's thoughts and actions, and fewer life changes had lower depressed mood and fewer clinical depression symptoms than their counterparts. Pattern 2: Mothers without history of depression who were married, with higher financial stress, and lower parenting evaluation had higher depressed mood, but not more clinical depression symptoms. Maternal age, parity, time since delivery, income, and help from partner were unrelated to either depression indicator. These patterns suggest multiple paths to PPD, and the need for routine mental health assessment and exploration of women's perceptions of their postpartum experience.