The goal of the FAITH project (Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment) is to remotely identify and predict depressive symptoms in cancer survivors using a federated machine learning approach that prioritizes privacy. The target audience includes healthcare professionals, researchers, technology developers and cancer survivors. The FAITH project leverages the following key areas of digital health: wearable technology, cloud-based technology, and predictive Artificial Intelligence (AI). As cancer survival rates rise due to improved screening and treatment, many survivors face long-term physical and psychological challenges, such as depression, anxiety, and cognitive impairment. Depression is more common in cancer survivors than in the general population, if untreated, can significantly reduce quality of life and increase healthcare needs. Overlapping symptoms like fatigue and sleep disturbances make it harder to differentiate depression from cancer-related effects.

Home / Publications / Publication

Home / Publications / Publication

Investigação e desenvolvimento FAITH
Image reproduced from the news.

Publication type: Article Summary
Original title: A prospective observational study for a Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment (FAITH): study protocol
Article publication date: December 2022
Source: BMC Psychiatry
Authors: Raquel Lemos, Sofia Areias-Marques, Pedro Ferreira, Philip O’Brien, María Eugenia Beltrán-Jaunsarás, Gabriela Ribeiro, Miguel Martín, María del Monte-Millán, Sara López-Tarruella, Tatiana Massarrah, Fernando Luís-Ferreira, Giuseppe Frau, Stefanos Venios, Gary McManus & Albino J. Oliveira-Maia

What is the goal, target audience, and areas of digital health it addresses?
     The goal of the FAITH project (Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment) is to remotely identify and predict depressive symptoms in cancer survivors using a federated machine learning approach that prioritizes privacy. The target audience includes healthcare professionals, researchers, technology developers and cancer survivors. The FAITH project leverages the following key areas of digital health: wearable technology, cloud-based technology, and predictive Artificial Intelligence (AI).

What is the context?
     As cancer survival rates rise due to improved screening and treatment, many survivors face long-term physical and psychological challenges, such as depression, anxiety, and cognitive impairment. Depression is more common in cancer survivors than in the general population, if untreated, can significantly reduce quality of life and increase healthcare needs. Overlapping symptoms like fatigue and sleep disturbances make it harder to differentiate depression from cancer-related effects.

     Federated machine learning is a decentralized method that trains AI models across multiple devices without sharing personal data. Each device processes its own data and sends only updates to a central server, ensuring privacy. The server combines these updates to improve the overall model, then sends the refined version back to each device. This continuous process makes the predictions more accurate through collective learning, and also allows each device’s AI model to remain personalized, adapting to the user’s specific data.

What are the current approaches?
     Traditional approaches to identifying depression in cancer survivors typically focus on the early years post-diagnosis, when patients are still in regular follow-up care. Current methods primarily rely on self-rated questionnaires, occasional clinical assessments, and symptom-based interviews. While these self-reporting tools are quick, easy, and cost-effective, they tend to miss key somatic symptoms like fatigue, appetite changes, and sleep disturbances. Additionally, these tools alone cannot provide a clinical diagnosis, which requires structured or semi-structured interviews. The infrequent follow-ups and reliance on subjective data often result in undetected cases of depression, especially after cancer treatment ends.

What does the FAITH project consist of? How is the impact of this FAITH project assessed?
     The FAITH project consists of a privacy-focused AI system designed to provide real-time insights into patients’ mental health through the analysis of 4 key depression markers: Activity, Sleep, Nutrition, and Voice, using this data to predict the risk of depression. The FAITH app integrates both passive data collection (automatic tracking of sleep and physical activity via smartbands and smartphones) and proactive data collection (self-reporting of nutrition habits through validated questionnaires and voice recordings).

     The FAITH project leverages federated machine learning, enabling AI models to be trained directly on users’ devices using local data from four key markers to predict depression risk. Statistical analyses, such as neural network modeling, further improve the accuracy of these predictions while incorporating bias reduction strategies. The platform operates on the Amazon Web Services (AWS) cloud, providing scalable storage and robust cybersecurity. This decentralized approach safeguards sensitive information, while data pseudonymization (replacing personal identifiers with coded identifiers) and strict compliance with General Data Protection Regulation (GDPR) standards ensure a high level of privacy and adherence to European data protection laws.

     The impact of the FAITH project is assessed through a longitudinal prospective study involving 300 breast or lung cancer survivors, recruited 1 to 5 years post-treatment. Participants are continuously monitored for sleep and physical activity. Each month, they self-report anxiety and depression using the Hospital Anxiety and Depression Scale (HADS), assess their quality of life with the EORTC questionnaires, and complete nutrition assessments. They also do monthly voice recordings, as speech patterns can offer insights into emotional well-being. Every 3 months, participants fill the applicable sleep and eating behavior questionnaires, and a clinician conducts a phone assessment for depressive symptoms using the Hamilton Depression Rating Scale (Ham-D).

What are the predictable results? What is the future of FAITH project?
     In the FAITH project, the user-friendly design and streamlined flow encourage consistent participation without overwhelming users. This regular engagement ensures high-quality data, enabling the algorithms to make accurate real-time predictions and trigger immediate alerts for healthcare professionals when depression markers exceed defined thresholds. The expected results include earlier detection of depressive episodes and timely interventions that improve patients’ quality of life and ease the burden on healthcare systems.

     The future of the FAITH project goes beyond cancer care, with the potential to apply this privacy-focused digital health tool to other chronic diseases and mental health conditions. Its long-term success relies on refining the AI model, completing clinical trials, and continuously improving usability and feasibility based on feedback. Future updates will help healthcare professionals better understand how the AI reaches its conclusions, leading to more informed decision-making and more personalized interventions.

Do you have an innovative idea in healthcare field?

Share it with us and see it come to life.
We will help bring your projects to life!

Newsletter

Receive the latest updates from the InovarSaúde portal.

Support

República Portuguesa logo
logotipo SNS
SPMS logotipo

Follow Us

Co-funded by

PRR Logotipo
república Portuguesa logo
União Europeia Logo

Newsletter

Receive the latest updates from the InovarSaúde portal.

Support

República Portuguesa logo
SNS Logo
SPMS Logo

Follow Us

Co-funded by

PRR Logotipo
República Portuguesa logo
União Europeia Logo

Home / Publications / Publication

Investigação e desenvolvimento FAITH
Image reproduced from the news.

Publication type: Article Summary
Original title: A prospective observational study for a Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment (FAITH): study protocol
Article publication date: December 2022
Source: BMC Psychiatry
Authors: Raquel Lemos, Sofia Areias-Marques, Pedro Ferreira, Philip O’Brien, María Eugenia Beltrán-Jaunsarás, Gabriela Ribeiro, Miguel Martín, María del Monte-Millán, Sara López-Tarruella, Tatiana Massarrah, Fernando Luís-Ferreira, Giuseppe Frau, Stefanos Venios, Gary McManus & Albino J. Oliveira-Maia

What is the goal, target audience, and areas of digital health it addresses?
     The goal of the FAITH project (Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment) is to remotely identify and predict depressive symptoms in cancer survivors using a federated machine learning approach that prioritizes privacy. The target audience includes healthcare professionals, researchers, technology developers and cancer survivors. The FAITH project leverages the following key areas of digital health: wearable technology, cloud-based technology, and predictive Artificial Intelligence (AI).

What is the context?
     As cancer survival rates rise due to improved screening and treatment, many survivors face long-term physical and psychological challenges, such as depression, anxiety, and cognitive impairment. Depression is more common in cancer survivors than in the general population, if untreated, can significantly reduce quality of life and increase healthcare needs. Overlapping symptoms like fatigue and sleep disturbances make it harder to differentiate depression from cancer-related effects.

     Federated machine learning is a decentralized method that trains AI models across multiple devices without sharing personal data. Each device processes its own data and sends only updates to a central server, ensuring privacy. The server combines these updates to improve the overall model, then sends the refined version back to each device. This continuous process makes the predictions more accurate through collective learning, and also allows each device’s AI model to remain personalized, adapting to the user’s specific data.

What are the current approaches?
     Traditional approaches to identifying depression in cancer survivors typically focus on the early years post-diagnosis, when patients are still in regular follow-up care. Current methods primarily rely on self-rated questionnaires, occasional clinical assessments, and symptom-based interviews. While these self-reporting tools are quick, easy, and cost-effective, they tend to miss key somatic symptoms like fatigue, appetite changes, and sleep disturbances. Additionally, these tools alone cannot provide a clinical diagnosis, which requires structured or semi-structured interviews. The infrequent follow-ups and reliance on subjective data often result in undetected cases of depression, especially after cancer treatment ends.

What does the FAITH project consist of? How is the impact of this FAITH project assessed?
     The FAITH project consists of a privacy-focused AI system designed to provide real-time insights into patients’ mental health through the analysis of 4 key depression markers: Activity, Sleep, Nutrition, and Voice, using this data to predict the risk of depression. The FAITH app integrates both passive data collection (automatic tracking of sleep and physical activity via smartbands and smartphones) and proactive data collection (self-reporting of nutrition habits through validated questionnaires and voice recordings).

     The FAITH project leverages federated machine learning, enabling AI models to be trained directly on users’ devices using local data from four key markers to predict depression risk. Statistical analyses, such as neural network modeling, further improve the accuracy of these predictions while incorporating bias reduction strategies. The platform operates on the Amazon Web Services (AWS) cloud, providing scalable storage and robust cybersecurity. This decentralized approach safeguards sensitive information, while data pseudonymization (replacing personal identifiers with coded identifiers) and strict compliance with General Data Protection Regulation (GDPR) standards ensure a high level of privacy and adherence to European data protection laws.

     The impact of the FAITH project is assessed through a longitudinal prospective study involving 300 breast or lung cancer survivors, recruited 1 to 5 years post-treatment. Participants are continuously monitored for sleep and physical activity. Each month, they self-report anxiety and depression using the Hospital Anxiety and Depression Scale (HADS), assess their quality of life with the EORTC questionnaires, and complete nutrition assessments. They also do monthly voice recordings, as speech patterns can offer insights into emotional well-being. Every 3 months, participants fill the applicable sleep and eating behavior questionnaires, and a clinician conducts a phone assessment for depressive symptoms using the Hamilton Depression Rating Scale (Ham-D).

What are the predictable results? What is the future of FAITH project?
     In the FAITH project, the user-friendly design and streamlined flow encourage consistent participation without overwhelming users. This regular engagement ensures high-quality data, enabling the algorithms to make accurate real-time predictions and trigger immediate alerts for healthcare professionals when depression markers exceed defined thresholds. The expected results include earlier detection of depressive episodes and timely interventions that improve patients’ quality of life and ease the burden on healthcare systems.

     The future of the FAITH project goes beyond cancer care, with the potential to apply this privacy-focused digital health tool to other chronic diseases and mental health conditions. Its long-term success relies on refining the AI model, completing clinical trials, and continuously improving usability and feasibility based on feedback. Future updates will help healthcare professionals better understand how the AI reaches its conclusions, leading to more informed decision-making and more personalized interventions.

Sistema robótico autónomo INSIDE

Autonomous Robotics System for Autism Therapy

Autism spectrum disorder is a neurodevelopmental condition with significant clinical, social and economic repercussions throughout life. According to the World Health Organization, it is estimated to affect approximately 1 in 160 children worldwide. Its origin…

Read more
Enfermeira com um telefone

Mobile Application to Improve Workflows in Nursing Homes

Portugal has one of the highest aging populations in the world, placing increasing pressure on elderly care services, especially in nursing homes. Healthcare professionals in these facilities are often overwhelmed due to the increasing number…

Read more
troca de informações de saúde e interoperabilidade

New Era of Interoperability in Healthcare Systems

The growing use of electronic health records, digital diagnostic systems and remote monitoring technologies has led to a significant increase in the volume and complexity of health data. This increase intensifies the need for continuous,…

Read more
robótica colaborativa

Collaborative Robotics Improves Working Conditions

Workers face growing challenges in the industrial environment. Among the most critical are fatigue and inappropriate postures, often associated with repetitive tasks and working conditions that lack ergonomic suitability. These factors represent significant risks for…

Read more
Benefícios da Eletrônica Médica

Detection of Anxiety and Panic Attacks in Real Time

The growing number of people with anxiety disorders, along with increased awareness of mental health, drives the need for new technological tools that provide remote and continuous monitoring of anxiety and panic disorders. Thus, the…

Read more
tele-ecografia

A Novel Approach for Robotic-assisted Tele-echography

Currently, robotic systems for ultrasound diagnostic procedures fall into two main categories: portable robots that require manual positioning and fully autonomous robotic systems that independently control the ultrasound probe’s orientation and positioning. Portable robots rely…

Read more
Personalização e tecnologia na gestão da Diabetes

Personalization and Technology in Diabetes Management

IPDM has significant potential to improve diabetes management and drive health system reforms to become high-performing, effective, equitable, accessible, and sustainable. Evidence and good practices inspire health system transformation. Adopting person-centred approaches like co-creation and…

Read more
TEF-HEALTH Logo

SPMS Integrates the TEF-Health Initiative

SPMS participates in the TEF-Health initiative as a partner in a consortium composed of 51 entities from 9 European Union countries. This action is co-financed by the European Commission and has a duration of five…

Read more
Global Digital Health Partnership Logo

SPMS Represents Portugal as Vice-president of GDHP

The GDHP is an intergovernmental organization in the digital health sector that facilitates cooperation and collaboration between government representatives and the World Health Organization (WHO). Its purpose is to foster policymaking that promote the digitalization…

Read more
Portugal INCoDe.2030

Digital Transformation of Health at INCoDe.2030 in Tomar

The “National Digital Skills Initiative e.2030, Portugal” (INCoDe.2030) is an initiative that aims to improve the Portuguese population’s level of digital skills, placing Portugal at the level of the most advanced European countries in this…

Read more
HealthData@PT Logo

HealthData@PT: New SPMS Initiative for Health Data

Action HealthData@PT is launched in the context of the implementation of the European Health Data Space, and is an initiative approved by the European Commission under the EU4Health 2021-2027 programme. This initiative contributes to the…

Read more

Do you have an innovative idea in healthcare field?

Share it with us and see it come to life.
We will help bring your projects to life!

Newsletter

Receive the latest updates from the Inovarsaúde portal.

Support

FAQs

Contacts

República Portuguesa logo
SNS Logo
SPMS Logo

Follow Us

Co-funded by

PRR Logotipo
República Portuguesa logo
União Europeia Logo
Scroll to Top