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Comparing the effectiveness of home visiting paraprofessionals and mental health professionals delivering a postpartum depression preventive intervention: a cluster-randomized non-inferiority clinical trial

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Abstract

To determine whether pregnant women receiving the Mothers and Babies group–based intervention exhibited greater depressive symptom reductions and fewer new cases of major depression than women receiving usual community-based services, and to examine whether groups run by paraprofessional home visitors and mental health professionals yielded similar depressive symptom reductions and prevention of major depression. Using a cluster-randomized design, 37 home visiting programs were randomized to usual home visiting, Mothers and Babies delivered via home visiting paraprofessionals, or Mothers and Babies delivered via mental health professionals. Baseline assessments were conducted prenatally with follow-up extending to 24 weeks postpartum. Eligibility criteria were ≥ 16 years old, ≤ 33 gestation upon referral, and Spanish/English speaking. Depressive symptoms at 24 weeks postpartum was the primary outcome. Eight hundred seventy-four women were enrolled. Neither intervention arm was superior to usual care in decreasing depressive symptoms across the sample (p = 0.401 home visiting paraprofessional vs. control; p = 0.430 mental health professional vs. control). Post hoc analyses suggest a positive intervention effect for women exhibiting mild depressive symptoms at baseline. We have evidence of non-inferiority, as the model-estimated mean difference in depressive symptoms between intervention arms (0.01 points, 95% CI: −0.79, 0.78) did not surpass our pre-specified margin of non-inferiority of two points. Although we did not find statistically significant differences between intervention and control arms, non-inferiority analyses found paraprofessional home visitors generated similar reductions in depressive symptoms as mental health professionals. Additionally, Mothers and Babies appears to reduce depressive symptoms among women with mild depressive symptoms when delivered by mental health professionals. This trial is registered on ClinicalTrials.gov (initial post: December 1, 2016; identifier: NCT02979444).

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All data are available from the PI upon reasonable request for data access.

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Acknowledgements

Research reported in this manuscript was funded through a Patient-Centered Outcomes Research Institute (PCORI) Award (AD-1507-31473). The authors would like to thank members of our Operations Team (Sarah Allen PhD, Sara Barrera MA, Alma Cuevas, Katrina Cunningham, Linda Delimata MS LCPC, Jacqueline Gollan PhD, Captoria Porter, Maria Roman, and Lesley Schwartz LCSW ACSW) for their guidance related to study implementation throughout this research project.

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Funding

This study was supported by contract #AD-1507-31473 from the Patient Centered Outcomes Research Institute (PCORI) [PI: Darius Tandon].

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Correspondence to S. Darius Tandon.

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Ethics approval

This cluster-randomized trial has been approved by the Institutional Review Board Office of Northwestern University (STU00203761) and was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.

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Written informed consent was received by all study participants in the trial.

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All authors have reviewed the manuscript prior to its submission for publication.

Conflict of interest

Darius Tandon has received research grants from the Patient Centered Outcomes Research Institute (PCORI).

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The views, statements, and opinions in this manuscript are solely the responsibility of the authors and do not necessarily represent the views of the PCORI, its Board of Governors or Methodology Committee.

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Tandon, S.D., Johnson, J.K., Diebold, A. et al. Comparing the effectiveness of home visiting paraprofessionals and mental health professionals delivering a postpartum depression preventive intervention: a cluster-randomized non-inferiority clinical trial. Arch Womens Ment Health 24, 629–640 (2021). https://doi.org/10.1007/s00737-021-01112-9

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  • DOI: https://doi.org/10.1007/s00737-021-01112-9

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