Perceived stress may mediate the relationship between antenatal depressive symptoms and preterm birth: A pilot observational cohort study

Peer counseling for perinatal depression in low- and middle-income countries: A scoping review

Perinatal depression is associated with adverse maternal, newborn and child health outcomes. Treatment gaps and sociocultural factors contribute to its disproportionate burden in low- and middle-income countries (LMICs). Task-sharing approaches, such as peer counseling, have been developed to improve access to mental health services. We conducted a scoping review to map the current literature on peer counseling for perinatal women experiencing depression in LMICs. We searched CINAHL, MEDLINE, APA PsycINFO, Global Health and EMBASE for literature with no date limits. We included 73 records in our analysis, with most being systematic reviews and meta-analyses, randomized controlled trials and qualitative studies. Most studies were conducted in India and Pakistan and published from 2020 onward. The Thinking Healthy Program (THP) and its Peer-Delivered (THPP) adaptation were the most common interventions. Studies suggested effectiveness, feasibility, acceptability and transferability of peer counseling, particularly within the THPP, for perinatal depression. Studies indicated that local women, as peers and lay counselors, are preferred and effective implementation agents. Gaps in the evidence include those relating to understanding perinatal depression (e.g., contextual understandings of the etiology, comorbidity and heterogeneity and social conditions of psychosocial distress including long-term impacts on relationships and children's development) and understanding and improving implementation. Further research on the adaptation, scaling up and integration of peer-delivered approaches with other approaches to improve impact are needed. There are also gaps in understanding the perspectives and experiences of peer counselors. Evidence gaps may stem from an emphasis on conventional public health approaches and measures derived from Western psychiatry, such as randomized controlled trials. There is relatively little research or implementation that prioritizes peer counselors in terms of understanding their perspectives and experiences (e.g., of professionalization), despite them being central to peer-delivered models. Task sharing has the potential to both empower peer counselors through mental health benefits and professional opportunities but also render peer counselors susceptible to vicarious exposure to traumatic stories and difficult situations amid limitations in available support. Better understanding counselors' and perinatal women's experiences can help decolonize the evidence base and improve implementation.

Allostatic Load as a Mediator and Perceived Chronic Stress as a Moderator in the Association between Maternal Mental Health and Preterm Birth: A Prospective Cohort Study of Pregnant Women in Pakistan

INTRODUCTION

The complex biopsychosocial pathways linking maternal mental health with preterm birth (PTB) are not well understood. This study aimed to explore allostatic load (AL) as a mediator and perceived chronic stress as a moderator in the pathway linking maternal mental health and PTB.

METHODS

A cohort study of pregnant women (n = 1,567) recruited at clinic visits within 10-19 weeks of gestation was assessed for maternal mental health (i.e., pregnancy-related anxiety, state anxiety, depressive symptoms) and perceived chronic stress. Blood pressure and levels of cortisol, total cholesterol, C-reactive protein, and glycosylated hemoglobin were used to create a composite measure of AL.

RESULTS

AL had the most significant effect on PTB (odds ratio (OR) = 1.84, 95% CI = 1.26-12.67, p = 0.001), while systolic blood pressure emerged as the only significant individual marker using variable selection (OR = 22%, 95% CI = 1.06-1.40, p < 0.001) in multiple logistic regression analysis. A mediation analysis revealed that maternal mental health did not have a significant direct effect on PTB (p = 0.824), but its indirect effect mediated by AL was significant (z = 2.33, p < 0.020). Low and high levels of perceived chronic stress, relative to the mean, moderated this indirect effect (z = 3.66, p < 0.001).

CONCLUSIONS

AL has a significant direct influence on PTB and mediates the effect of maternal mental health on PTB; however, the indirect effect of AL is indistinguishable between women with higher or lower levels of perceived chronic stress than normal.

Psychosocial and behavioral factors affecting inflammation among pregnant African American women

African American women are reported to have greater inflammation compared with women from other racial groups. Higher inflammation during pregnancy has been associated with increased risk of adverse perinatal outcomes. We hypothesized that maternal inflammation is related to depressive symptoms and social and behavioral risk factors among pregnant African American women. Pregnant African American women (n ​= ​187) were recruited at prenatal clinics in the Midwest. Women completed questionnaires and had blood drawn at a prenatal visit. Plasma levels of cytokines (interferon gamma [IFN]-γ, interleukin [IL]-6, IL-8, IL-10, tumor necrosis factor [TNF]-α) and C-reactive protein (CRP) were measured by multiplex assays. Women had a mean age of 26.58±5.42 years and a mean gestational age at data collection of 16.35±5.95 weeks. Twenty-six percent of women had Center for Epidemiological Studies-Depression (CES-D) scores ≥23 (scores that have been correlated with clinical diagnosis of depression), 15.5% smoked cigarettes, 16.6% used marijuana, and 5.3% reported experiencing intimate partner violence (IPV). Higher CES-D scores were correlated with higher plasma CRP levels (r ​= ​0.16, p ​= ​0.046). Women who reported any experiences of IPV during pregnancy had higher levels of IL-8 (p ​= ​0.018) and lower levels of IFN-γ (p ​= ​0.012) compared with women who did not report IPV. Cigarette smoking during pregnancy was associated with lower levels of the anti-inflammatory cytokine IL-10 (p ​= ​0.003). These findings suggest that depressive symptoms, IPV, and cigarette smoking during pregnancy relate to select inflammatory markers in pregnant African American women. The relationships of inflammation with these factors should be further investigated to better understand the mechanisms which influence maternal and fetal health outcomes.

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Depressive symptoms are related to higher levels of CRP in pregnant African American Women.

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Intimate partner violence in pregnancy is related to higher interleukin 8 levels.

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Smoking during pregnancy is associated with lower interleukin 10 levels.

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Inflammation is related to depressive symptoms, intimate partner violence and smoking in pregnant African American women.

Psychometric analysis of the Edinburgh Postnatal Depression Scale and Pregnancy Related Anxiety Questionnaire in Pakistani pregnant women

BACKGROUND

The Edinburgh Postnatal Depression Scale (EPDS) and the Pregnancy-Related Anxiety Scale (PRAQ) are frequently used perinatal mental health scales.

OBJECTIVE

To identify the factor structure of the Urdu language versions of EPDS and PRAQ in 280 Pakistani pregnant women.

METHOD

The tools were administered at 12-19 weeks' and 22-29 weeks' gestational age (GA). Exploratory factor analyses were undertaken on data collected at 12-19 weeks' GA, to assess both scales. Results obtained at the second time point were used to examine test-retest reliability. The correlation between the scales was computed.

RESULTS

A two-factor model yielded the best fit for both scales, which is consistent with findings from previous studies. For the EPDS, acceptable reliability was attained for the overall score (α = 0.77) and for the factor related to depressive symptoms (α = 0.73), but not for the factor related to anhedonia/suicide (α = 0.64). For the PRAQ, acceptable reliability was attained for the overall score (α = 0.83) and for the factor related to pregnancy concerns (α = 0.84), but not for the factor related to childbirth (α = 0.64). Test-retest reliability was acceptable for both overall scales EPDS: r = 0.50; PRAQ: r = 0.45; both p < .001). The Pearson correlation between the EPDS and PRAQ were r = 0.145, p < .05.

CONCLUSION

Analysis of the tools confirmed a two-factor structure for both depression and anxiety among Pakistani pregnant women. A weak correlation was found between the EPDS and PRAQ. Further research is required to develop screening instruments for perinatal mental disorders that are applicable to cultural contexts.