2025
Bryson, A., Kambayashi, R., Kuwahara, S., Nakamura, A. & Wels, J. (2025). What is Happening to Unionization in Japan? Hitotsubashi University, Institute of Economic Research Discussion Paper Series A No.770, 1-32.
Wels, J., & Hamarat, N. (2025). Incidence and prevalence of reported cases of euthanasia in Belgium, 2002 to 2023. JAMA Network Open 8(4), e256841.
[Previously published as: Wels, J., & Hamarat, N. (2024). Incidence and prevalence of euthanasia in Belgium. A study using administrative data on all cases of euthanasia reported between 2002 and 2023. MeRxiv, 10.1101/2024.10.16.24315619. https://doi.org/10.1101/2024.10.16.24315619]
Kromydas, T., Demou, E., Leyland, A. H., Srinivasa Katikireddi, V., & Wels, J. (2023). Did trade unions protect employees’ mental health during the COVID-19 pandemic? A mixed effect model using UK data from Understanding Society. BMJ Public Health. Accepted for publication.
[Previously published as: Kromydas, T., Demou, E., Leyland, A. H., Srinivasa Katikireddi, V., & Wels, J. (2023). Trade unions and mental health during an employment crisis. Evidence from the UK before and during the COVID-19 pandemic. MedRxiv, 2023.10.30.23297780, 1–24. https://doi.org/10.1101/2023.10.30.23297780]
Wels, J., & Fu, R. (2025). Associations of employment status, working time and job satisfaction with sleep duration and sleep quality among the 50+ population in Japan. Industrial Health. Accepted for publication
[Previously published as: Wels, J., & Fu, R. (2024). Associations of employment status, working time and job satisfaction with sleep duration and sleep quality among the Japanese 50+ population. MedRxiv, 2024.03.28.24305011. https://doi.org/10.1101/2024.03.28.24305011]
Shaw, R. J., Rhead, R., Silverwood, R. J., Wels, J., Zhu, J., Hamilton, O. K., di Gessa, G., Bowyer, R. C., Moltrecht, B., Green, M. J., Demou, E., Pattaro, S., Zaninotto, P., Boyd, A., Greves, F., Chaturvedi, N., Ploubidis, G. B., & Katikireddi, S. V. (2025). Associations between different measures of SARS-CoV-2 infection status and subsequent economic inactivity: A pooled analysis of five longitudinal surveys linked to healthcare records. PLOS One. Accepted for publication
[Previously published as: Shaw, R. J., Rhead, R., Silverwood, R. J., Wels, J., Zhu, J., Hamilton, O. K., di Gessa, G., Bowyer, R. C., Moltrecht, B., Green, M. J., Demou, E., Pattaro, S., Zaninotto, P., Boyd, A., Greves, F., Chaturvedi, N., Ploubidis, G. B., & Katikireddi, S. V. (2023). Associations between SARS-CoV-2 infection and subsequent economic inactivity and employment status: pooled analyses of five linked longitudinal surveys. MedRxiv, 10.1101/2023.07.31.23293422, 1–17. https://doi.org/10.1101/2023.07.31.23293422]
Maddock, J., Wels, J. (2025). Key considerations in understanding retirement’s health impact. Journal of Epidemiology and Community Health. jech-2024-222936.