City Research Online

Constantinou, G. ORCID: 0000-0002-2389-7901, Ayers, S. ORCID: 0000-0002-6153-2460, Webb, R. ORCID: 0000-0002-8862-6491 , Handelzalts, J., Wright, D. B., Grollman, C., Lucas, G., Awad-Sirhan, N., Baird, K., Batool, R., Batool, S., Caparros-Gonzalez, R. A., Chorwe-Sungani, G., Christoforou, A., Coo, S., Costa, R., Dikmen-Yildiz, P., Ďuríčeková, B., Dušová, B., Enea, V., Garthus-Niegel, S., Grundström, H., Gureje, O., Hadjigeorgiou, E., Haga, S. M., Horsch, A., Ionio, C., Jarašiūnaitė-Fedosejeva, G., Jomeen, J., Kazmierczak, M., Lalor, J., Matijaš, M., Milosavljevic, M., Nagle, U., Nakić Radoš, S., Nieminen, K., Oladeji, B. D., Osório, F. L., Pawlicka, P., Peled, Y., Pinto, T. M., Rattaz, V., Riklikienė, O., Schellong, J., Sigurðardóttir, V. L., Thagunna, N. S., Theme-Filha, M. M., Škodová, Z., Dörr, P., Stepisnik Perdih, T., Stewart, R. C., Swift, E. M., Uriko, K., Vally, Z., Vezmar, M. & Zedan, H. S.view all authors (2026). Symptom presentation of childbirth-related post-traumatic stress in 31 countries: the INTERSECT study. Journal of Affective Disorders, 412, article number 122092. doi: 10.1016/j.jad.2026.122092

Ayers, S. ORCID: 0000-0002-6153-2460, Handelzalts, J. E., Webb, R. ORCID: 0000-0002-8862-6491 , Constantinou, G. ORCID: 0000-0002-2389-7901, Grollman, C. ORCID: 0000-0002-6950-1837, Lucas, G. ORCID: 0000-0001-5941-5233, Awad-Sirhan, N., Baird, K., Baldisserotto, M. L., Batool, R., Batool, S., Brekalo, M., Caparros-Gonzalez, R. A., Chorwe-Sungani, G., Christoforou, A., Coo, S., Costa, R., Dikmen-Yildiz, P., Ďuríčeková, B., Dušová, B., Enea, V., Garthus-Niegel, S., Grundström, H., Gureje, O., Hadjigeorgiou, E., Haga, S. M., Horsch, A., Ionio, C., Jarašiūnaitė-Fedosejeva, G., Jomeen, J., Kazmierczak, M., Lalor, J., Milosavljevic Markovic, M., Nagle, U., Nakić Radoš, S., Nieminen, K., Oladeji, B. D., Osório, F. D. L., Pawlicka, P., Peled, Y., Pinto, T. M., Rattaz, V., Riklikiene, O., Schellong, J., Seefeld, L., Sigurðardóttir, V. L., Škodová, Z., Dörr, P., Stepisnik Perdih, T., Stewart, R., Swift, E. M., Thagunna, N. S., Uriko, K., Vally, Z., Vezmar, M., Wright, D. B. & Zedan, H. S.view all authors (2026). International prevalence of childbirth-related post-traumatic stress disorder: INTERSECT study. The British Journal of Psychiatry, doi: 10.1192/bjp.2026.10708

Fort, D., Ayers, S. ORCID: 0000-0002-6153-2460, Horesh, D. , Garthus-Niegel, S., Zietlow, A-L., Handelzalts, J., Caparros-Gonzalez, R. A., Alderdice, F., Rattaz, V. & Horsch, A.view all authors (2026). Maternal peripartum stress: A new consensus-based definition. Archives of Women's Mental Health, 29(4), article number 100. doi: 10.1007/s00737-026-01741-y

Handelzalts, J. E. ORCID: 0000-0002-9045-6057, Ayers, S. ORCID: 0000-0002-6153-2460, Webb, R. ORCID: 0000-0002-8862-6491 , Constantinou, G. ORCID: 0000-0002-2389-7901, Lucas, G. ORCID: 0000-0001-5941-5233, Grollman, C. ORCID: 0000-0002-6950-1837, Ohayon, S. ORCID: 0000-0001-8417-9121, Awad Sirhan, N., Baird, K., Baldisserotto, M. ORCID: 0000-0001-6907-2510, Batool, R., Batool, S., Caparros-Gonzalez, R. A., Chorwe-Sungani, G., Christoforou, A. ORCID: 0000-0003-1244-6424, Coo, S., Costa, R. ORCID: 0000-0003-1614-540X, Dikmen-Yildiz, P. ORCID: 0000-0002-0496-3897, Ďuríčeková, B., Dušová, B., Enea, V. ORCID: 0000-0003-3789-2017, Garthus-Niegel, S. ORCID: 0000-0002-7472-674X, Grundström, H., Gureje, O., Hadjigeorgiou, E. ORCID: 0000-0002-5834-4207, Haga, S. M. ORCID: 0000-0003-4190-6821, Horsch, A. ORCID: 0000-0002-9950-9661, Ionio, C., Jarašiūnaitė-Fedosejeva, G. ORCID: 0000-0003-0989-6758, Jomeen, J. ORCID: 0000-0002-4510-583X, Kazmierczak, M., Lalor, J., Milosavljevic, M. ORCID: 0000-0003-0191-5440, Nagle, U., Nakić Radoš, S. ORCID: 0000-0002-8330-8427, Nieminen, K. ORCID: 0000-0002-6014-4327, Oladeji, B. D. ORCID: 0000-0001-5856-2100, Osório, F. ORCID: 0000-0003-1396-555X, Pawlicka, P. ORCID: 0000-0002-2342-1583, Peled, Y., Pinto, T. M. ORCID: 0000-0002-7581-8961, Rattaz, V. ORCID: 0000-0002-6530-1758, Riklikienė, O., Schellong, J., Sigurðardóttir, V. L. ORCID: 0000-0001-9895-3683, Thagunna, N. S., Theme Filha, M., Škodová, Z. ORCID: 0000-0002-1885-6443, Stebelová, P. ORCID: 0000-0003-0034-1588, Stepisnik Perdih, T. ORCID: 0000-0002-1444-0555, Stewart, R., Swift, E. M., Uriko, K. ORCID: 0000-0003-0644-4473, Vally, Z. ORCID: 0000-0002-0083-6006, Vezmar, M. ORCID: 0000-0003-0456-6514, Zedan, H. H. ORCID: 0000-0002-7246-9559 & Žutić, M. ORCID: 0000-0001-9197-1096view all authors (2025). Cross-national risk factors for childbirth-related PTSD: Findings from the INTERSECT study. Psychological Medicine, 55, article number e349. doi: 10.1017/s0033291725102298

Ayers, S. ORCID: 0000-0002-6153-2460, Brooks Wright, D. ORCID: 0000-0002-4619-1848, Caparros-Gonzalez, R. A. ORCID: 0000-0002-0565-1123 , Ciuffo, G. ORCID: 0000-0003-4031-0890, Constantinou, G. ORCID: 0000-0002-2389-7901, Dikmen-Yildiz, P. ORCID: 0000-0002-0496-3897, Garthus-Niegel, S. ORCID: 0000-0002-7472-674X, Grundström, H. ORCID: 0000-0002-4086-4634, Handelzalts, J. ORCID: 0000-0002-9045-6057, Horsch, A. ORCID: 0000-0002-9950-9661, Ionio, C. ORCID: 0000-0002-0163-3841, Nakić Radoš, S. ORCID: 0000-0002-8330-8427, Osório, F. L. ORCID: 0000-0003-1396-555X, Rattaz, V. ORCID: 0000-0002-6530-1758, Riklikiene, O. ORCID: 0000-0001-5143-4288, Seefeld, L. ORCID: 0000-0001-6818-8597, Sigurðardóttir, V. L. ORCID: 0000-0001-9895-3683 & Webb, R. ORCID: 0000-0002-8862-6491view all authors (2025). A brief international screening tool for traumatic birth and childbirth-related PTSD: the city BiTS-short form. BMJ Global Health, 10(8), article number e019216. doi: 10.1136/bmjgh-2025-019216

Caparros-Gonzalez, R. A. ORCID: 0000-0002-0565-1123, Ayers, S. ORCID: 0000-0002-6153-2460, Duman, E. A. , Calleja, N., Calleja-Agius, J., Carone, N., Christoforou, A., Dikmen-Yildiz, P., Garcia-Pintor, S., Horsch, A., Kittel-Schneider, S., Leno-Duran, E., Lynn, F., Oosterman, M., Prepušt, L., Rodriguez-Muñoz, M. F., Zietlow, A-L., Žutić, M. & Garthus-Niegel, S.view all authors (2025). Maternal and infant (mental) health and development: our TREASURE – Introducing an EU COST Action on the impact of maternal perinatal stress. Journal of Reproductive and Infant Psychology, 43(3), pp. 553-556. doi: 10.1080/02646838.2025.2492976

Buyukcan‐Tetik, A., Seefeld, L., Bergunde, L. , Ergun, T. D., Dikmen‐Yildiz, P., Horsch, A., Garthus‐Niegel, S., Oosterman, M., Lalor, J., Weigl, T., Bogaerts, A., Van Haeken, S., Downe, S. & Ayers, S. ORCID: 0000-0002-6153-2460view all authors (2024). Birth expectations, birth experiences and childbirth‐related post‐traumatic stress symptoms in mothers and birth companions: Dyadic investigation using response surface analysis. British Journal of Health Psychology, 29(4), pp. 925-942. doi: 10.1111/bjhp.12738

Deforges, C. ORCID: 0000-0002-2242-6075, Noël, Y. ORCID: 0000-0002-3363-1365, Ayers, S. ORCID: 0000-0002-6153-2460 , Holmes, E. A., Sandoz, V. ORCID: 0000-0002-2763-667X, Avignon, V., Desseauve, D., Bourdin, J., Epiney, M. & Horsch, A. ORCID: 0000-0002-9950-9661view all authors (2024). There was no call for immediate implementation of “Tetris” in clinical practice: Response to the commentary by Halvorsen et al. (2024). Molecular Psychiatry, 30(1), pp. 339-341. doi: 10.1038/s41380-024-02766-4

Horsch, A., Garthus-Niegel, S., Ayers, S. ORCID: 0000-0002-6153-2460 , Chandra, P., Hartmann, K., Vaisbuch, E. & Lalor, J.view all authors (2024). Childbirth-related posttraumatic stress disorder: definition, risk factors, pathophysiology, diagnosis, prevention, and treatment. American Journal of Obstetrics and Gynecology, 230(3), S1116-S1127. doi: 10.1016/j.ajog.2023.09.089

Ayers, S. ORCID: 0000-0002-6153-2460, Horsch, A., Garthus-Niegel, S. , Nieuwenhuijze, M., Bogaerts, A., Hartmann, K., Karlsdottir, S. I., Oosterman, M., Tecirli, G., Turner, J. D., Lalor, J. & COST Action CA18211view all authors (2024). Traumatic birth and childbirth-related post-traumatic stress disorder: International expert consensus recommendations for practice, policy, and research. Women Birth, 37(2), pp. 362-367. doi: 10.1016/j.wombi.2023.11.006

Seefeld, L., Handelzalts, J. E., Horesh, D. , Horsch, A., Ayers, S. ORCID: 0000-0002-6153-2460, Dikmen-Yildiz, P., Akik, B. K. & Garthus-Niegel, S.view all authors (2024). Going through it together: Dyadic associations between parents' birth experience, relationship satisfaction, and mental health. Journal of Affective Disorders, 348, pp. 378-388. doi: 10.1016/j.jad.2023.12.044

Alderdice, F., Ayers, S. ORCID: 0000-0002-6153-2460, Batorowicz, E. , Caparros-Gonzalez, R. A., Carone, N., Darwin, Z., Fallon, V., Garthus-Niegel, S., Hayes, L., Horsch, A., Iles, J., Lafarge, C., Martin, C., Radoš, S. N., Newham, J., Power, C., Redshaw, M., Seefeld, L., Sheen, K. & Worobey, J.view all authors (2024). Reflections on a successful year of the Society for Reproductive and Infant Psychology. Journal of Reproductive and Infant Psychology, 42(1), pp. 1-4. doi: 10.1080/02646838.2023.2288447

Deforges, C., Sandoz, V., Noël, Y. , Avignon, V., Desseauve, D., Bourdin, J., Vial, Y., Ayers, S. ORCID: 0000-0002-6153-2460, Holmes, E. A., Epiney, M. & Horsch, A.view all authors (2023). Single-session visuospatial task procedure to prevent childbirth-related posttraumatic stress disorder: a multicentre double-blind randomised controlled trial. Molecular Psychiatry, 28(9), pp. 3842-3850. doi: 10.1038/s41380-023-02275-w

Nakic Radoš, S., Ayers, S. ORCID: 0000-0002-6153-2460 & Horsch, A. (2023). Editorial: From childbearing to childrearing: Parental mental health and infant development. Frontiers in Psychology, 13, article number 1123241. doi: 10.3389/fpsyg.2022.1123241

Lalor, J., Ayers, S. ORCID: 0000-0002-6153-2460, Celleja Agius, J. , Downe, S., Gouni, O., Hartmann, K., Nieuwenhuijze, M., Oosterman, M., Turner, J. D., Karlsdottir, S. I. & Horsch, A.view all authors (2021). Balancing restrictions and access to maternity care for women and birthing partners during the COVID-19 pandemic: the psychosocial impact of suboptimal care. BJOG: An International Journal of Obstetrics and Gynaecology, 128(11), pp. 1720-1725. doi: 10.1111/1471-0528.16844

Jomeen, J., Martin, C. R., Jones, C. , Marshall, C., Ayers, S. ORCID: 0000-0002-6153-2460, Burt, K., Frodsham, L., Horsch, A., Midwinter, D., O'Connell, M., Shakespeare, J., Sheen, K. & Thomson, G.view all authors (2020). Tokophobia and fear of birth: a workshop consensus statement on current issues and recommendations for future research.. Journal of Reproductive and Infant Psychology, 39(1), pp. 2-15. doi: 10.1080/02646838.2020.1843908

Garthus-Niegel, S., Horsch, A., von Soest, T. , Haga, S. M., Drozd, F., Ayers, S. ORCID: 0000-0002-6153-2460 & Eberhard-Gran, M.view all authors (2020). Posttraumatic stress symptoms following childbirth: associations with prenatal attachment in subsequent pregnancies. Archives of Women's Mental Health, 23(4), pp. 547-555. doi: 10.1007/s00737-019-01011-0

Sandoz, V., Deforges, C., Stuijfzand, S. , Epiney, M., Vial, Y., Sekarski, N., Messerli-Burgy, N., Ehlert, U., Bickle-Graz, M., Harari, M. M., Porcheret, K., Schechter, D. S., Ayers, S. ORCID: 0000-0002-6153-2460, Holmes, E. A., Horsch, A., Avignon, V., Tolsa, C. B., Bourdin, J., Delecraz, D., Desseauve, D., Eragne, I., Imbert, J., Murray, M. M. & START Res, Consortiumview all authors (2019). Improving mental health and physiological stress responses in mothers following traumatic childbirth and in their infants: study protocol for the Swiss TrAumatic biRth Trial (START). BMJ OPEN, 9(12), article number e032469. doi: 10.1136/bmjopen-2019-032469

Garthus-Niegel, S., Horsch, A., Handtke, E. , von Soest, T., Ayers, S. ORCID: 0000-0002-6153-2460, Weidner, K. & Eberhard-Gran, M.view all authors (2018). The Impact of Postpartum Posttraumatic Stress and Depression Symptoms on Couples' Relationship Satisfaction: A Population-Based Prospective Study. Frontiers in Psychology, 9(SEP), article number 1728. doi: 10.3389/fpsyg.2018.01728

Cook, N., Ayers, S. & Horsch, A. (2018). Maternal posttraumatic stress disorder during the perinatal period and child outcomes: A systematic review. Journal of Affective Disorders, 225, pp. 18-31. doi: 10.1016/j.jad.2017.07.045

Furuta, M., Horsch, A., Ng, E. , Bick, D., Spain, D. & Sin, J. ORCID: 0000-0003-0590-7165view all authors (2018). Effectiveness of Trauma-Focused Psychological Therapies for Treating Post-traumatic Stress Disorder Symptoms in Women Following Childbirth: A Systematic Review and Meta-Analysis. Frontiers in Psychiatry, 9, article number 591. doi: 10.3389/fpsyt.2018.00591

Garthus-Niegel, S., Horsch, A., Ayers, S. ORCID: 0000-0002-6153-2460 , Junge-Hoffmeister, J., Weidner, K. & Eberhard-Gran, M.view all authors (2017). The influence of postpartum PTSD on breastfeeding: A longitudinal population-based study.. Birth, 45(2), pp. 193-201. doi: 10.1111/birt.12328

McKenzie-McHarg, K., Ayers, S., Ford, E. , Horsch, A., Jomeen, J., Sawyer, A., Stramrood, C., Thomson, G. & Slade, P.view all authors (2015). Post-traumatic stress disorder following childbirth: an update of current issues and recommendations for future research. JOURNAL OF REPRODUCTIVE AND INFANT PSYCHOLOGY, 33(3), pp. 219-237. doi: 10.1080/02646838.2015.1031646