Personal profile
Research interests
Martha joined the GCU in October 2023 having previously worked at King's College London (KCL). Her primary research interst is in substance misuse including its intersection with mental health problems and social determinants of health, and the impact of substance misuse in the family.
Martha is also interested in research methods applied to Psychology and the use of routinely collected eletronic health records in research. She has worked as an adviser for the NIHR Research Design Service (RDS) London. She has a PhD in Psycholgy (completed in 2015) and a Postgraduate Certificate in Applied Statistical Modelling and Health Informatics.
External positions
Honorary Visiting Researcher , Associação Paulista para o Desenvolvimento da Medicina
1 Jul 2024 → …
Visiting Research Fellow in the Department of Psychology , King's College London
2023 → …
Honorary Research Fellow, South London and Maudsley NHS Foundation Trust
2023 → …
Honorary Research Associate, Victoria University of Wellington
2021 → …
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being -
SDG 5 Gender Equality -
SDG 10 Reduced Inequalities -
SDG 16 Peace, Justice and Strong Institutions
Fingerprint
- 1 Similar Profiles
Collaborations and top research areas from the last five years
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Predicting the risk of opioid use disorder in non-cancer chronic pain: Understanding patterns, behaviours and psychosocial determinants
Canfield, M. (PI) & Hughes, L. (CoI)
Project: Research Grant
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Good Practice in Transfer Care
Canfield, M. (PI), Hughes, L. (CoI) & Dimova, E. (CoI)
Project: Research Grant
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Intimate partner violence among female partners of men with substance use problems: an exploratory analysis of service use records of a family support program in Brazil
Resende Lima, D. J., Laranjeira, R., Canfield, M., Silva , C. J., Soeiro e Silva, J. R., Radaeli van der Molen, R., Sakiyama, H. & Rato Padin, M. D. F., 2026, In: Substance Use and Misuse. 61, 7, p. 1080-1084 5 p.Research output: Contribution to journal › Article › peer-review
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Prevalence and correlates of synthetic cannabinoid use in a substance use treatment population: an electronic health record study in Brazil
Madruga , C. S., Barreto, K. I. S., Canfield, M., de Araujo, A. C., Seabra , D., Laranjeira , R. R. & Cordeiro , Q., 25 Apr 2026, (Accepted/In press) In: Substance Use and Misuse.Research output: Contribution to journal › Article › peer-review
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Recurrent care proceedings and use of services for substance use disorder: a retrospective linked data cohort study of mothers in South London
Canfield, M., Gilchrist, G., Downs, J. & Norton, S., Jan 2026, In: Addiction. 121, 1, p. 163-172 10 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile40 Downloads (Pure) -
A call for equity: investing in substance use research for Brazil’s LGBTQ+ population
Madruga, C. S., Barreto, K. I. D. S., Seabra, D., da Silva, C. J., de Godoy Filho, G. S., Molleis Galego Miziara, C. S., Canfield, M., Cordeiro, Q. & Laranjeira, R. R., 29 Sept 2025, In: Clinics. 80, 2 p., 100790.Research output: Contribution to journal › Letter › peer-review
Open AccessFile7 Downloads (Pure) -
Addressing reproductive health inequities in Brazil’s open drug scenes: the case for improving uptake of etonogestrel subdermal implant
Madruga, C. S., Barreto, K. I. D. S., Seabra, D., Miguel, A., Silva, C. J. D., Filho, G. S. D. G., Rebouças, L. N., Ferreira, N. A., Bosso, R. A., Miziara, C. S. M. G., Canfield, M., Cordeiro, Q. & Laranjeira, R. R., 15 Jul 2025, In: Brazilian Journal of Gynecology and Obstetrics. 47, 4 p., e-rbgo60.Research output: Contribution to journal › Letter › peer-review
Open AccessFile13 Downloads (Pure)
Activities
- 2 Visiting an external academic institution
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Universidade Federal de São Paulo
Canfield, M. (Visiting researcher)
2014Activity: Visiting an external institution › Visiting an external academic institution
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Universidade Federal do Rio Grande do Sul
Canfield, M. (Visiting researcher)
2013Activity: Visiting an external institution › Visiting an external academic institution