SWAT Resources

Monetary incentives for increasing participant retention rates in the ComEx Pain feasibility trial

Evaluating the effect of sending participants a personalised ‘Thank you’ card on postal questionnaire response rate

Use of telephone follow-up with text or WhatsApp message summary versus telephone follow-up alone to trial participants to improve trial retention.

Interventions to optimize response rates for online, patientreported outcome measures

Alternating text message and phone call reminders versus text message reminders alone for increasing response to follow-up questionnaires.

Impact of additional trial site training on managing participation changes and of participant information after stopping participation on the availability of primary outcome data

What is the effect of time critical wording of text message reminders on completion of electronic participant case report forms (CRFs)?

Video information given at the point of discharge to improve participant follow-up rates

Motivation-targeted compared to standard text message interventions for data collection and adherence

Effects of a self-directed orientation session on retention in a digital weight loss study

Effects of an information video presented to participants on retention in a randomised trial

Impact of monetary rewards added to both trial arms on participant retention in a randomised trial

Impact of newsletters on participant retention in randomised trials

Effectiveness and cost effectiveness of providing a pen at recruitment on participant retention in randomised trials

Pre-notification of trial participants by newsletter to improve response rates to questionnaires

Effects of the timing of telephone contact with potential participants on the return of 12-week questionnaires

Impact of data collection frequency on participant retention in the HEAL-COVID platform clinical trial

Impact of a return postage strategy on retention in randomised trials

What is the impact on participant retention when an electronic reminder is integrated into the design of a randomised trial?

The effectiveness and cost effectiveness of financial incentives for increasing participant retention rates in randomised trials

Impact of pre-notifications on retention in 17-year follow-up of very preterm born adolescents (PIPARI-SWAT)

Effects of SMS pre-notification and reminders on electronic questionnaire return using a sequential multiple assignment randomised trial (SMART) design

Assessment of clinical utility of the Navio web-based app in protocol adherence and PRO completion in the HoT trial

Electronic versus paper based Patient Reported oUtcomes CollEction (SPRUCE)

Effects of increasing incentives on participant response to data collection at 6 months follow up

Timing and value of participant vouchers to improve questionnaire return rates in the STADIA (STAndardised DIagnostic Assessment for children and adolescents with emotional difficulties) Trial.

Follow-up within global surgEry triAls: a qualiTative investigation to improvE trial Retention (FEATHER)

Characteristics of participants who choose to complete electronic or paper patient reported outcome measures (PROs)

Effects on retention of different weight assessment approaches during trials of Behavioural Weight Management Interventions (BWMI)

Adding 'Withdrawal Slips' within follow up reminders for questionnaires

The Sticker Swat: Does a trial logo sticker placed on the outside of the envelope encourage the return of postal questionnaires

Social Incentive Retention Cover Letter to Improve Questionnaire Response Rates

Providing monetary incentives to participants to improve completion rates of questionnaires by referred co-respondents

Improving participant retention using a pen as an incentive with the reminder for a postal follow-up questionnaire

Branded gift and letter from PPI group to enhance questionnaire response rate in a randomised trial

Modes of data collection for subjective outcomes at followup: comparing a choice and a failure-based approach

SMS prompts to improve compliance with study procedures

Effects of video guidance and a helpdesk on recruitment and retention in a Delphi survey for the development of a core outcome set

Comparison of trial-collected and routinely-collected death data

What are the effects on retention and follow-up of courtesy telephone calls versus postcards to trial participants following enrolment?

Effects on retention of giving trial participants a thank you card following each study visit

Timing of text message and email communication to improve questionnaire return rates

Effects of telephone calls or postcards to trial participants following enrolment on retention in a randomised trial

Printing the primary outcomE on Pink PapER versus standard paper to increase participant engagement to postal questionnaires (PEPPER)

The effectiveness of a text message reminder which participants can respond to, compared with a ‘no reply’ text message on questionnaire response rates

Unconditional or conditional incentives for initial and followup postal questionnaires in a clinical trial

Offer of a free yoga class to participants in the control group on completion of the trial follow-up, to enhance retention and reduce contamination

Pen incentive to enhance retention in a randomised trial

Using theory-based enhancements to improve engagement with trial participant newsletters

Does the time at which a participant incentive is given affect the retention rate?

Including a theoretically informed leaflet in a participant take-home pack of questionnaires to increase response rate

Advance notification of trial participants before outcome data collection to improve retention

Postal vs telephone follow-up

Sending Christmas cards to trial participants to improve retention.

Post-it Note SWAT

Effect of a birthday card on retention and data completion rates in trials involving children

TYPhooN (Thank You and Pre Notification) SWAT Protocol: sending pre-notification emails to trial participants before outcome measurement

Sending pre-notification cards to trial participants before outcome measurement to improve retention

Evaluation of offering an incentive before or after completion of a 2-year follow-up postal questionnaire on the response rate in parents of preterm babies

Strategies to optimise retention to an online randomised controlled trial for relatives of people with severe mental illness

Giving trial participants a thank you note or card after each study visit

Promoting group identity to improve questionnaire return rate

Effects of a £10 note on trial retention

Incentives and reminders to complete an online survey

Timing of text message prompts to increase trial participant response to postal questionnaires

Personalised text message versus standard text message prompts for increasing response to postal questionnaires

Offering study results as an incentive to increase response rates to postal questionnaires

Effects of a newsletter and Post-it® note on postal questionnaire response rates

Electronic prompts to increase response rates to postal questionnaires

Pre-notification of trial participants by newsletter to improve response rates

Two-by-two factorial randomised trial to evaluate strategies to improve follow-up in a randomised prevention trial

Using a theoretically informed cover letter to improve response rates to annual postal questionnaires

Provision of incentives to improve participant response to data collection in a randomised trial of a public health intervention

Financial incentives to complete follow-up questionnaires in a randomised trial

Impact of questionnaire design on response rates and satisfaction of the participants

Timing and mode of delivery of a self-completion questionnaire