Zoe Swithenbank
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Zoe Swithenbank has a total of 69 co-authors. Here are the top co-authors by number of shared publications:
- Jo-Anne Puddephatt
Department of Psychology, Edge Hill University, Ormskirk, United Kingdom
3 shared publications - Alessio Bricca
Center for Muscle and Joint Health, Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
2 shared publications - Andrew Harding
Division of Health Research, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
2 shared publications - Fiona Lobban
Division of Health Research, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
2 shared publications - Heather Robinson
Spectrum Centre for Mental Health Research, Division of Health Research, Lancaster University, Lancaster, UK
2 shared publications - Jade Haines
IT Corporate Services, Berkshire Healthcare NHS Foundation Trust, Berkshire, United Kingdom
2 shared publications
Latest Publications
- Open Access
- 10 September 2026
- Published by Taylor & Francis in Journal of Dual Diagnosis
- Vol. 22 (4) , 444-462
The Implementation of Current UK Guidance for the Treatment of Co-Occurring Mental Health and Substance Use Conditions: A Mixed Methods Systematic Review and Thematic Synthesis
- 10 September 2026
- Published by Taylor & Francis in Journal of Dual Diagnosis
- Vol. 22 (4) , 444-462
Open AccessThe Implementation of Current UK Guidance for the Treatment of Co-Occurring Mental Health and Substance Use Conditions: A Mixed Methods Systematic Review and Thematic Synthesis
- Open Access
- 5 January 2026
- Published by International Pharmaceutical Federation (FIP) in Pharmacy Education
- Vol. 26 (1) , 430-443
Vaping as a smoking cessation tool: Attitudes of pharmacy students–A quantitative study
Background: Vaping is increasingly promoted as a smoking cessation aid, providing nicotine without the harms of conventional cigarettes. This study examined pharmacy students' perceptions of its effectiveness and safety. Methods: An exploratory quantitative study was conducted using an online questionnaire distributed to students in the Pharmacy Programme at the School of Pharmacy and Biomolecular Sciences. Results: A total of 55 participants completed the online survey. Most students (61.8%) viewed vaping positively as a smoking cessation tool. Only 27.3% thought e-cigarettes were more effective than nicotine replacement therapy, with 49.1% disagreeing and 23.6% neutral. 61.8% supported combining e-cigarettes with cessation services; 20% were negative, 18.2% neutral. Some attitudes were associated with prior vaping and pharmacy experience. Knowledge gaps: 90.9% wrongly reported or didn't know adverse effects are reportable via the Yellow Card Scheme (60.0% "don't know," 30.9% incorrect), and 58.2% were unaware of licensed e-cigarettes. Regarding regulation, 49.1% said e-cigarettes aren’t strictly regulated in the UK, 29.1% didn't know. Conclusion: Pharmacy students generally had positive attitudes toward vaping but lacked sufficient knowledge. Updating the curriculum with evidence, regulation, and counselling details could help. The impact of any educational programme should be evaluated prospectively.
- 5 January 2026
- Published by International Pharmaceutical Federation (FIP) in Pharmacy Education
- Vol. 26 (1) , 430-443
Open AccessVaping as a smoking cessation tool: Attitudes of pharmacy students–A quantitative study
Background: Vaping is increasingly promoted as a smoking cessation aid, providing nicotine without the harms of conventional cigarettes. This study examined pharmacy students' perceptions of its effectiveness and safety. Methods: An exploratory quantitative study was conducted using an online questionnaire distributed to students in the Pharmacy Programme at the School of Pharmacy and Biomolecular Sciences. Results: A total of 55 participants completed the online survey. Most students (61.8%) viewed vaping positively as a smoking cessation tool. Only 27.3% thought e-cigarettes were more effective than nicotine replacement therapy, with 49.1% disagreeing and 23.6% neutral. 61.8% supported combining e-cigarettes with cessation services; 20% were negative, 18.2% neutral. Some attitudes were associated with prior vaping and pharmacy experience. Knowledge gaps: 90.9% wrongly reported or didn't know adverse effects are reportable via the Yellow Card Scheme (60.0% "don't know," 30.9% incorrect), and 58.2% were unaware of licensed e-cigarettes. Regarding regulation, 49.1% said e-cigarettes aren’t strictly regulated in the UK, 29.1% didn't know. Conclusion: Pharmacy students generally had positive attitudes toward vaping but lacked sufficient knowledge. Updating the curriculum with evidence, regulation, and counselling details could help. The impact of any educational programme should be evaluated prospectively.
- Open Access
- 26 September 2025
- Published by JMIR Publications Inc. in JMIR Mental Health
- Vol. 12, e58891
Understanding the Needs of Moderators in Online Mental Health Forums: Realist Synthesis and Recommendations for Support
Background: There has been an increase in the use of online mental health forums to support mental health. These forums are often moderated by trained moderators to ensure a safe, therapeutic environment. While the moderator role is rewarding, it can also be challenging. There is a need to understand the impact of the role on moderators and how they can best be supported to maintain psychological well-being. Objective: This study aimed to understand how, why, and in what contexts moderator well-being is affected by the moderator role and produce actionable recommendations for how moderators can best be supported to maintain workplace psychological well-being. Methods: We conducted realist synthesis of (1) published and gray literature from 2019 to 2023, (2) stakeholder interviews with forum moderators and hosts, and (3) moderator training manuals developed by organizations that host online mental health forums. Self-determination theory was used as the theoretical basis for this synthesis. Results: We developed 24 context-mechanism-outcome configurations from our realist analysis of 9 published papers, 18 interviews, and 5 training manuals. The findings highlight the specific ways in which moderator well-being can be supported through meeting the psychological needs for autonomy, competence, and relatedness. Forums that allow moderators to work in alignment with their personal motivations can increase moderator well-being. Forum organizations should support moderator competence through initial expectation setting, especially around moderator responsibility for user well-being, and ongoing support, such as meaningful supervision and peer support. Co-designed training, reflective practice, and experiential learning are all key to increasing moderator competence and satisfaction in the workplace. Working within a diverse team with access to innovative forum design can increase moderator psychological well-being. Organizational support for moderators’ well-being through monitoring and encouraging self-care is vital to ensure moderators can effectively carry out their role. Making and supporting meaningful relationships in the forum can boost psychological well-being and the therapeutic value of the moderator role. Key challenges for moderators were dealing with conflicts between supporting open discussion and ensuring a safe community environment, sharing lived experiences in positive ways for both moderator and user, and supporting people within the limitations of an anonymous forum. Conclusions: This realist synthesis is the first to examine the impacts on well-being of being a moderator of an online mental health forum. Recommendations to support moderator psychological well-being are proposed, targeted at specific stakeholder groups to aid implementation. Organizational-level endorsement and facilitation of support are particularly important for the realization of recommendations and interventions to support moderator well-being.
- 26 September 2025
- Published by JMIR Publications Inc. in JMIR Mental Health
- Vol. 12, e58891
Open AccessUnderstanding the Needs of Moderators in Online Mental Health Forums: Realist Synthesis and Recommendations for Support
Background: There has been an increase in the use of online mental health forums to support mental health. These forums are often moderated by trained moderators to ensure a safe, therapeutic environment. While the moderator role is rewarding, it can also be challenging. There is a need to understand the impact of the role on moderators and how they can best be supported to maintain psychological well-being. Objective: This study aimed to understand how, why, and in what contexts moderator well-being is affected by the moderator role and produce actionable recommendations for how moderators can best be supported to maintain workplace psychological well-being. Methods: We conducted realist synthesis of (1) published and gray literature from 2019 to 2023, (2) stakeholder interviews with forum moderators and hosts, and (3) moderator training manuals developed by organizations that host online mental health forums. Self-determination theory was used as the theoretical basis for this synthesis. Results: We developed 24 context-mechanism-outcome configurations from our realist analysis of 9 published papers, 18 interviews, and 5 training manuals. The findings highlight the specific ways in which moderator well-being can be supported through meeting the psychological needs for autonomy, competence, and relatedness. Forums that allow moderators to work in alignment with their personal motivations can increase moderator well-being. Forum organizations should support moderator competence through initial expectation setting, especially around moderator responsibility for user well-being, and ongoing support, such as meaningful supervision and peer support. Co-designed training, reflective practice, and experiential learning are all key to increasing moderator competence and satisfaction in the workplace. Working within a diverse team with access to innovative forum design can increase moderator psychological well-being. Organizational support for moderators’ well-being through monitoring and encouraging self-care is vital to ensure moderators can effectively carry out their role. Making and supporting meaningful relationships in the forum can boost psychological well-being and the therapeutic value of the moderator role. Key challenges for moderators were dealing with conflicts between supporting open discussion and ensuring a safe community environment, sharing lived experiences in positive ways for both moderator and user, and supporting people within the limitations of an anonymous forum. Conclusions: This realist synthesis is the first to examine the impacts on well-being of being a moderator of an online mental health forum. Recommendations to support moderator psychological well-being are proposed, targeted at specific stakeholder groups to aid implementation. Organizational-level endorsement and facilitation of support are particularly important for the realization of recommendations and interventions to support moderator well-being.
- 20 July 2024
- Published by Springer Nature in CNS Drugs
- Vol. 38 (10) , 771-789
Current Perspectives on the Clinical Research and Medicalization of Psychedelic Drugs for Addiction Treatments: Safety, Efficacy, Limitations and Challenges
Mental health disorders and substance use disorders (SUDs) in particular, contribute greatly to the global burden of disease. Psychedelics, including entactogens and dissociative substances, are currently being explored for the treatment of SUDs, yet with less empirical clinical evidence than for other mental health disorders, such as depression or post-traumatic stress disorder (PTSD). In this narrative review, we discuss the current clinical research evidence, therapeutic potential and safety of psilocybin, lysergic acid diethylamide (LSD), ketamine, 3,4-methylenedioxymethamphetamine (MDMA) and ibogaine, particularly in the context of the SUD treatment. Our aim was to provide a balanced overview of the current research and findings on potential benefits and harms of psychedelics in clinical settings for SUD treatment. We highlight the need for more clinical research in this particular treatment area and point out some limitations and challenges to be addressed in future research.
- 20 July 2024
- Published by Springer Nature in CNS Drugs
- Vol. 38 (10) , 771-789
Current Perspectives on the Clinical Research and Medicalization of Psychedelic Drugs for Addiction Treatments: Safety, Efficacy, Limitations and Challenges
Mental health disorders and substance use disorders (SUDs) in particular, contribute greatly to the global burden of disease. Psychedelics, including entactogens and dissociative substances, are currently being explored for the treatment of SUDs, yet with less empirical clinical evidence than for other mental health disorders, such as depression or post-traumatic stress disorder (PTSD). In this narrative review, we discuss the current clinical research evidence, therapeutic potential and safety of psilocybin, lysergic acid diethylamide (LSD), ketamine, 3,4-methylenedioxymethamphetamine (MDMA) and ibogaine, particularly in the context of the SUD treatment. Our aim was to provide a balanced overview of the current research and findings on potential benefits and harms of psychedelics in clinical settings for SUD treatment. We highlight the need for more clinical research in this particular treatment area and point out some limitations and challenges to be addressed in future research.
- Top Cited PapersOpen Access
- 9 May 2024
- Published by JMIR Publications Inc. in JMIR Mental Health
- Vol. 11 (1) , e55750
Understanding the Impacts of Online Mental Health Peer Support Forums: Realist Synthesis
Background: Online forums are widely used for mental health peer support. However, evidence of their safety and effectiveness is mixed. Further research focused on articulating the contexts in which positive and negative impacts emerge from forum use is required to inform innovations in implementation. Objective: This study aimed to develop a realist program theory to explain the impacts of online mental health peer support forums on users. Methods: We conducted a realist synthesis of literature published between 2019 and 2023 and 18 stakeholder interviews with forum staff. Results: Synthesis of 102 evidence sources and 18 interviews produced an overarching program theory comprising 22 context-mechanism-outcome configurations. Findings indicate that users’ perceptions of psychological safety and the personal relevance of forum content are foundational to ongoing engagement. Safe and active forums that provide convenient access to information and advice can lead to improvements in mental health self-efficacy. Within the context of welcoming and nonjudgmental communities, users may benefit from the opportunity to explore personal difficulties with peers, experience reduced isolation and normalization of mental health experiences, and engage in mutual encouragement. The program theory highlights the vital role of moderators in creating facilitative online spaces, stimulating community engagement, and limiting access to distressing content. A key challenge for organizations that host mental health forums lies in balancing forum openness and anonymity with the need to enforce rules, such as restrictions on what users can discuss, to promote community safety. Conclusions: This is the first realist synthesis of online mental health peer support forums. The novel program theory highlights how successful implementation depends on establishing protocols for enhancing safety and strategies for maintaining user engagement to promote forum sustainability. Trial Registration: PROSPERO CRD42022352528; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=352528
- 9 May 2024
- Published by JMIR Publications Inc. in JMIR Mental Health
- Vol. 11 (1) , e55750
Top Cited PapersOpen AccessUnderstanding the Impacts of Online Mental Health Peer Support Forums: Realist Synthesis
Background: Online forums are widely used for mental health peer support. However, evidence of their safety and effectiveness is mixed. Further research focused on articulating the contexts in which positive and negative impacts emerge from forum use is required to inform innovations in implementation. Objective: This study aimed to develop a realist program theory to explain the impacts of online mental health peer support forums on users. Methods: We conducted a realist synthesis of literature published between 2019 and 2023 and 18 stakeholder interviews with forum staff. Results: Synthesis of 102 evidence sources and 18 interviews produced an overarching program theory comprising 22 context-mechanism-outcome configurations. Findings indicate that users’ perceptions of psychological safety and the personal relevance of forum content are foundational to ongoing engagement. Safe and active forums that provide convenient access to information and advice can lead to improvements in mental health self-efficacy. Within the context of welcoming and nonjudgmental communities, users may benefit from the opportunity to explore personal difficulties with peers, experience reduced isolation and normalization of mental health experiences, and engage in mutual encouragement. The program theory highlights the vital role of moderators in creating facilitative online spaces, stimulating community engagement, and limiting access to distressing content. A key challenge for organizations that host mental health forums lies in balancing forum openness and anonymity with the need to enforce rules, such as restrictions on what users can discuss, to promote community safety. Conclusions: This is the first realist synthesis of online mental health peer support forums. The novel program theory highlights how successful implementation depends on establishing protocols for enhancing safety and strategies for maintaining user engagement to promote forum sustainability. Trial Registration: PROSPERO CRD42022352528; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=352528
- Open Access
Tailoring CONSORT‐SPI to improve the reporting of smoking cessation intervention trials: An expert consensus study
Background and AimsInadequate reporting of smoking cessation intervention trials is common and leads to significant challenges for researchers. The aim of this study was to tailor CONSORT (Consolidated Standards of Reporting Trials)-SPI (Social and Psychological Interventions) guidelines to improve reporting of trials of behavioural interventions to promote smoking cessation.MethodInformed by missing data from the IC-SMOKE (Intervention and Comparison group support provided in SMOKing cEssation) systematic review project, this study used a multi-stage Delphi process to examine which items could be added or modified to improve the reporting of smoking cessation trials. The first stage involved an on-line survey of 17 international experts in smoking cessation and trial methodology voting on the importance of items for inclusion in the updated guidelines. This was followed by a face-to-face expert consensus meeting attended by 15 of these experts, where the final inclusion and exclusion of new items and modifications were agreed upon. A nine-point Likert scale was used to establish consensus, with suggested modifications requiring agreement of 75% or more. Disagreements in the first stage were presented again at the second stage for discussion and a second round of voting. Only items which reached the threshold for agreement were included.ResultsThe experts agreed on the inclusion of 10 new items and the specification of 12 existing items. This included modifications that could apply to trials more widely (e.g. the rationale for the comparator), but also modifications that were very specific to smoking cessation trials (e.g. the reporting of smoking cessation outcomes).ConclusionsA Delphi study has developed a modified CONSORT-SPI guideline (CONSORT-SPI-SMOKE) to improve the reporting of trials of behavioural interventions to promote smoking cessation.
Open AccessTailoring CONSORT‐SPI to improve the reporting of smoking cessation intervention trials: An expert consensus study
Background and AimsInadequate reporting of smoking cessation intervention trials is common and leads to significant challenges for researchers. The aim of this study was to tailor CONSORT (Consolidated Standards of Reporting Trials)-SPI (Social and Psychological Interventions) guidelines to improve reporting of trials of behavioural interventions to promote smoking cessation.MethodInformed by missing data from the IC-SMOKE (Intervention and Comparison group support provided in SMOKing cEssation) systematic review project, this study used a multi-stage Delphi process to examine which items could be added or modified to improve the reporting of smoking cessation trials. The first stage involved an on-line survey of 17 international experts in smoking cessation and trial methodology voting on the importance of items for inclusion in the updated guidelines. This was followed by a face-to-face expert consensus meeting attended by 15 of these experts, where the final inclusion and exclusion of new items and modifications were agreed upon. A nine-point Likert scale was used to establish consensus, with suggested modifications requiring agreement of 75% or more. Disagreements in the first stage were presented again at the second stage for discussion and a second round of voting. Only items which reached the threshold for agreement were included.ResultsThe experts agreed on the inclusion of 10 new items and the specification of 12 existing items. This included modifications that could apply to trials more widely (e.g. the rationale for the comparator), but also modifications that were very specific to smoking cessation trials (e.g. the reporting of smoking cessation outcomes).ConclusionsA Delphi study has developed a modified CONSORT-SPI guideline (CONSORT-SPI-SMOKE) to improve the reporting of trials of behavioural interventions to promote smoking cessation.
- Open Access
- 27 January 2023
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 20 (3) , 2291
Embedding Physical Activity into Community-Based Peer Support Groups for those Severely Affected by Mental Illness
Despite a growing evidence base on the effectiveness of community-based physical activity interventions for mental health, there is a lack of studies that focus on those affected by severe mental illness (SMI), who often experience poorer physical health, and are less physically active than the wider population. The use of peer support groups in this context is also understudied, despite benefits being documented in other contexts. This study examined the impact and process of a nationwide project to embed physical activity into peer support groups for those affected by SMI. Following the embedding of physical activity within peer support groups, interviews and focus groups were conducted to explore the experiences of those involved with the project and analysed using reflexive thematic analysis. The key findings related to: 1) the social aspects of embedding physical activity in the groups; 2) the focus on peer support and informal physical activity (rather than organised sport) being beneficial; 3) doing things differently and lessons to learn; and 4) the impact of the COVID-19 pandemic. Overall, we found that peer support is an important feature to include in projects encouraging those severely affected by mental illness to become more physically active.
- 27 January 2023
- Published by MDPI AG in International Journal of Environmental Research and Public Health
- Vol. 20 (3) , 2291
Open AccessEmbedding Physical Activity into Community-Based Peer Support Groups for those Severely Affected by Mental Illness
Despite a growing evidence base on the effectiveness of community-based physical activity interventions for mental health, there is a lack of studies that focus on those affected by severe mental illness (SMI), who often experience poorer physical health, and are less physically active than the wider population. The use of peer support groups in this context is also understudied, despite benefits being documented in other contexts. This study examined the impact and process of a nationwide project to embed physical activity into peer support groups for those affected by SMI. Following the embedding of physical activity within peer support groups, interviews and focus groups were conducted to explore the experiences of those involved with the project and analysed using reflexive thematic analysis. The key findings related to: 1) the social aspects of embedding physical activity in the groups; 2) the focus on peer support and informal physical activity (rather than organised sport) being beneficial; 3) doing things differently and lessons to learn; and 4) the impact of the COVID-19 pandemic. Overall, we found that peer support is an important feature to include in projects encouraging those severely affected by mental illness to become more physically active.
- Open Access
- 22 June 2022
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 17 (6) , e0270045
Service user perceptions of smoking cessation in residential substance use treatment
Introduction: Prevalence of tobacco smoking among adults in substance misuse treatment is much higher than the wider population, yet limited research is available, and residential treatment services have been overlooked as a potential setting for cessation interventions. Exploring the perceptions of service users about smoking cessation in residential rehabilitation is important to gain better understanding of this issue and identify ways to inform future intervention development. Methods: Ten semi-structured interviews were conducted in the Northwest of England in 2017 with adults (7 male, 3 female) who were currently or had previously been in residential treatment for substance misuse. Five participants were current smokers, three had never smoked, and two were former smokers. Participants were asked about their smoking behaviours, factors relating to smoking and smoking cessation and the relationship between smoking and substance use. All interviews were transcribed and data was analysed thematically. Results: Study findings highlighted a general consensus amongst participants that residential treatment services offered an ideal opportunity for cessation but there were concerns that doing so might jeopardise recovery. Smoking in substance use treatment services is still the norm and factors such as perceived social and psychological benefits, normative behaviours and lack of perceived risk or prioritisation pose challenges for implementing smoking cessation within this setting, although facilitators such as motivation to change and appropriateness of the setting were also identified. Conclusions: This study suggests that service users perceive residential treatment services as suitable environments to introduce smoking cessation. To address the needs of adults who smoke and are in recovery from substance use, further research and cooperation from treatment organisations is needed to integrate substance misuse and smoking cessation services. More conclusive evidence on the effectiveness of tackling both issues at the same time is also required.
- 22 June 2022
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 17 (6) , e0270045
Open AccessService user perceptions of smoking cessation in residential substance use treatment
Introduction: Prevalence of tobacco smoking among adults in substance misuse treatment is much higher than the wider population, yet limited research is available, and residential treatment services have been overlooked as a potential setting for cessation interventions. Exploring the perceptions of service users about smoking cessation in residential rehabilitation is important to gain better understanding of this issue and identify ways to inform future intervention development. Methods: Ten semi-structured interviews were conducted in the Northwest of England in 2017 with adults (7 male, 3 female) who were currently or had previously been in residential treatment for substance misuse. Five participants were current smokers, three had never smoked, and two were former smokers. Participants were asked about their smoking behaviours, factors relating to smoking and smoking cessation and the relationship between smoking and substance use. All interviews were transcribed and data was analysed thematically. Results: Study findings highlighted a general consensus amongst participants that residential treatment services offered an ideal opportunity for cessation but there were concerns that doing so might jeopardise recovery. Smoking in substance use treatment services is still the norm and factors such as perceived social and psychological benefits, normative behaviours and lack of perceived risk or prioritisation pose challenges for implementing smoking cessation within this setting, although facilitators such as motivation to change and appropriateness of the setting were also identified. Conclusions: This study suggests that service users perceive residential treatment services as suitable environments to introduce smoking cessation. To address the needs of adults who smoke and are in recovery from substance use, further research and cooperation from treatment organisations is needed to integrate substance misuse and smoking cessation services. More conclusive evidence on the effectiveness of tackling both issues at the same time is also required.
- Open Access
Predictors of recruitment and retention in randomized controlled trials of behavioural smoking cessation interventions: a systematic review and meta‐regression analysis
Aim: To investigate predictors of participant eligibility, recruitment and retention in behavioural randomized controlled trials (RCTs) for smoking cessation.Method: Systematic review and pre‐specified meta‐regression analysis of behavioural RCTs for smoking cessation including adult (≥ 18‐year‐old) smokers. The pre‐specified predictors were identified through a literature review and experts’ consultation and included participant, trial and intervention characteristics and recruitment and retention strategies. Outcome measures included eligibility rates (proportion of people eligible for the trials), recruitment rates, retention rates and differential retention rates.Results: A total of 172 RCTs with 89 639 participants. Eligibility [median 57.6%; interquartile range (IQR) = 34.7–83.7], recruitment (median 66.4%; IQR = 42.7–85.2) and retention rates (median 80.5%; IQR = 68.5–89.5) varied considerably across studies. For eligibility rates, the recruitment strategy appeared not to be associated with eligibility rates. For recruitment rates, use of indirect recruitment strategies (e.g. public announcements) [odds ratio (OR) = 0.30, 95% confidence interval (CI) = 0.11–0.82] and self‐help interventions (OR = 0.14, 95% CI = 0.03–0.67) were associated with lower recruitment rates. For retention rates, higher retention was seen if the sample had ongoing physical health condition/s (OR = 1.66, 95% CI = 1.04–2.63), whereas lower retention was seen amongst primarily female samples (OR = 0.83, 95% CI = 0.71–0.98) and those motivated to quit smoking (OR = 0.74, 95% CI = 0.55–0.99) when indirect recruitment methods were used (OR = 0.60, 95% CI = 0.38–0.97) and at longer follow‐up assessments (OR = 0.83, 95% CI = 0.79–0.87). For differential retention, higher retention in the intervention group occurred when the intervention but not comparator group received financial incentives for smoking cessation (OR = 1.35, 95% CI = 1.02–1.77).Conclusions: In randomized controlled trials of behavioural smoking cessation interventions, recruitment and retention rates appear to be higher for smoking cessation interventions that include a person‐to‐person rather than at‐a‐distance contact; male participants, smokers with chronic conditions, smokers not initially motivated to quit and shorter follow‐up assessments seems to be associated with improved retention; financial incentive interventions improve retention in groups receiving them relative to comparison groups.
Open AccessPredictors of recruitment and retention in randomized controlled trials of behavioural smoking cessation interventions: a systematic review and meta‐regression analysis
Aim: To investigate predictors of participant eligibility, recruitment and retention in behavioural randomized controlled trials (RCTs) for smoking cessation.Method: Systematic review and pre‐specified meta‐regression analysis of behavioural RCTs for smoking cessation including adult (≥ 18‐year‐old) smokers. The pre‐specified predictors were identified through a literature review and experts’ consultation and included participant, trial and intervention characteristics and recruitment and retention strategies. Outcome measures included eligibility rates (proportion of people eligible for the trials), recruitment rates, retention rates and differential retention rates.Results: A total of 172 RCTs with 89 639 participants. Eligibility [median 57.6%; interquartile range (IQR) = 34.7–83.7], recruitment (median 66.4%; IQR = 42.7–85.2) and retention rates (median 80.5%; IQR = 68.5–89.5) varied considerably across studies. For eligibility rates, the recruitment strategy appeared not to be associated with eligibility rates. For recruitment rates, use of indirect recruitment strategies (e.g. public announcements) [odds ratio (OR) = 0.30, 95% confidence interval (CI) = 0.11–0.82] and self‐help interventions (OR = 0.14, 95% CI = 0.03–0.67) were associated with lower recruitment rates. For retention rates, higher retention was seen if the sample had ongoing physical health condition/s (OR = 1.66, 95% CI = 1.04–2.63), whereas lower retention was seen amongst primarily female samples (OR = 0.83, 95% CI = 0.71–0.98) and those motivated to quit smoking (OR = 0.74, 95% CI = 0.55–0.99) when indirect recruitment methods were used (OR = 0.60, 95% CI = 0.38–0.97) and at longer follow‐up assessments (OR = 0.83, 95% CI = 0.79–0.87). For differential retention, higher retention in the intervention group occurred when the intervention but not comparator group received financial incentives for smoking cessation (OR = 1.35, 95% CI = 1.02–1.77).Conclusions: In randomized controlled trials of behavioural smoking cessation interventions, recruitment and retention rates appear to be higher for smoking cessation interventions that include a person‐to‐person rather than at‐a‐distance contact; male participants, smokers with chronic conditions, smokers not initially motivated to quit and shorter follow‐up assessments seems to be associated with improved retention; financial incentive interventions improve retention in groups receiving them relative to comparison groups.