Prevalence, age-of-onset, and course of mental disorders among 72,288 first-year university students from 18 countries in the World Mental Health International College Student (WMH-ICS) initiative

Andre Mason, Charlene Rapsey, Nancy Sampson, Sue Lee, Yesica Albor, Ahmad N. Al-Hadi, Jordi Alonso, Nouf Al-Saud, Yasmin Altwaijri, Claes Andersson, Lukoye Atwoli, Randy P. Auerbach, Caroline Ayuya, Patricia M. Báez-Mansur, Laura Ballester, Jason Bantjes, Harald Baumeister, Marcus Bendtsen, Corina Benjet, Anne H. BermanErik Bootsma, Silver C.N. Chan, Irina Cohut, María Anabell Covarrubias Díaz Couder, Pim Cuijpers, Oana David, Dong Dong, David D. Ebert, Mireia Felez Nobrega, Jorge Gaete, Carlos García Forero, Margalida Gili, Raúl Gutiérrez-García, Josep Maria Haro, Penelope Hasking, Kristen Hudec, Xanthe Hunt, Petra Hurks, Mathilde Husky, Florence Jaguga, Leontien Jansen, Fanny Kählke, Elisabeth Klinkenberg, Ann Marie Küchler, Álvaro I. Langer, Irene Léniz, Yan Liu, Scarlett Mac-Ginty, Vania Martínez, Muthoni Mathai, Margaret McLafferty, Andrea Miranda-Mendizabal, Elaine Murray, Catherine M. Musyoka, Catalin Nedelcea, Chun Ho Ngai, Daniel Núñez, Siobhan O'Neill, Jose A. Piqueras, Codruta A. Popescu, Kealagh Robinson, Tiscar Rodriguez-Jimenez, Damian Scarf, Oi Ling Siu, Dan J. Stein, Sascha Y. Struijs, Cristina Tomoiaga, Karla Patricia Valdés-García, Sanne van Luenen, Daniel V. Vigo, Angel Y. Wang, Reinout Wiers, Samuel Y.S. Wong, Ronald C. Kessler*, Ronny Bruffaerts, Rodrigo Antunes Lima, Elsie Breet, Nadia Garnefski, Karen Jacobs, Vivian Kraaij, Lonna Munro, Richard J. Munthali, Ana Paula Prescivalli, Marisa Rebagliato, Miquel Roca, Elske Salemink, Claudia van der Heijde

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Background: The college years are a developmentally sensitive period for mental disorder onset. Reliable epidemiological data are critical for informing public health responses. This study aimed to estimate prevalence and socio-demographic distributions of common DSM-5 mental disorders among first-year university students from 77 universities across 18 countries. Methods: Data were collected 2017–2023 in the World Mental Health International College Student Initiative with n = 72,288 university students. Online surveys assessed alcohol use, attention-deficit/hyperactivity, bipolar, drug use, generalized anxiety, major depression, panic, and post-traumatic stress disorders with validated screening scales. Socio-demographics included student age, sex at birth, gender modality, sexual orientation, and parent education. Results: The weighted mean response rate was 20.8%. Data were calibrated for differential response rates by sex at birth and age. 65.2% of respondents screened positive for lifetime mental disorders and 57.4% for 12-month mental disorders. Females had higher prevalence of internalizing disorders and males of substance and attention-deficit/hyperactivity disorders. Older age was associated with lower prevalence of most 12-month but not lifetime mental disorders. Non-heterosexual sexual orientation and identifying as transgender were associated with highest prevalence of most mental disorders. Parent education was for the most part uncorrelated with prevalence. Conclusions: Although prevalence might have been overestimated due to the low response rate and possible screening scale miscalibration, results nonetheless suggest that mental disorders are highly prevalent among first-year university students worldwide and are widely distributed with respect to socio-demographic characteristics. These findings highlight the need to implement effective interventions to better support first-year university student mental health.

Original languageEnglish
Pages (from-to)225-236
Number of pages12
JournalJournal of Psychiatric Research
Volume183
DOIs
StatePublished - Mar 2025

Bibliographical note

Publisher Copyright:
© 2025

Keywords

  • College students
  • Mental disorders
  • WMH-ICS

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