Recruiting patients for health preference DCE studies
Patient recruitment is typically the most challenging and expensive element of a health preference study. Getting the strategy right before you start fieldwork saves weeks and budget.
This article explains the main channels for patient recruitment in health preference DCEs, ethics and confirmation of diagnosis requirements, and how SurveyEngine's sampling team manages patient recruitment.
Knowledge Base -> Respondent Sampling -> Health
Ben White, 07.07.2026
Why patient recruitment is hard
Patients with a specific diagnosis are a small, hard-to-reach population. Unlike general population samples that can be recruited from large online panels, patient populations require targeted recruitment through clinical channels, patient advocacy organisations, disease registries, or specialist panels. Incidence rates can be very low - for rare diseases, fewer than 1 in 10,000 of the general population.
Even for common conditions, online panel patient populations are unreliable. Studies have found that a significant proportion of panel respondents who claim to have a specific diagnosis cannot be verified - they are either misremembering, misidentifying their condition, or fraudulently claiming eligibility. For regulatory submissions, confirmation of diagnosis (COD) is typically required.
Recruitment channels for patient preference studies
Patient advocacy organisations (PAOs) are the highest quality recruitment channel for many conditions. PAO members are typically highly engaged patients with confirmed diagnoses who understand research. Recruitment through PAOs requires relationship-building, co-design of the research, and often co-authorship or acknowledgement.
Specialist panels maintained by research companies - Rare Patient Voice, PatientPoint, and similar - provide access to verified patient populations for a wide range of conditions. Panel quality varies substantially; confirmation of diagnosis requirements should be specified in the contract.
Clinical site recruitment - through oncology clinics, rheumatology practices, or other specialist settings - provides the highest quality patient data with physician-confirmed diagnosis but is slow and expensive. It is appropriate for studies in the context of a clinical development programme.
Digital recruitment through condition-specific online communities, patient forums, and social media can reach large patient populations quickly but requires robust screening and, where required, confirmation of diagnosis.
Planning patient recruitment with SurveyEngine
Step 1: Define eligibility criteria precisely. Before approaching any recruitment channel, write detailed eligibility criteria specifying: diagnosis (using ICD codes where appropriate), disease stage or severity, treatment status, age range, language, and any exclusion criteria. Ambiguous criteria lead to incorrect inclusions.
Step 2: Specify confirmation of diagnosis requirements. Decide whether COD is required for your study and, if so, what form it should take. Options include: self-report with screener questions; PAO membership verification; physician attestation; or laboratory or medical record verification.
Step 3: Estimate your incidence rate and recruitment timeline. Work with SurveyEngine's sampling team to estimate the expected incidence rate - what proportion of recruited adults will meet your eligibility criteria - and the resulting fieldwork timeline and cost.
Step 4: Plan interim quality reviews. Build in a 20% interim review to assess whether the recruited sample matches the target population in terms of diagnosis, treatment experience, and demographic composition.
Step 5: Prepare contingency recruitment plans. If the primary recruitment channel underdelivers, have a backup plan - additional PAO partnerships, broader digital recruitment, or supplementary panel recruitment - ready to activate.
Worked example - rare disease patient recruitment
A patient preference study targeting patients with systemic lupus erythematosus (SLE) with active joint involvement requires 200 confirmed patients. SurveyEngine recruits through three parallel channels: a lupus patient advocacy organisation (target 80), a specialist patient panel with COD (target 80), and targeted social media recruitment with screener and GP confirmation (target 40).
The incidence rate through the PAO channel is 62% (38% of PAO members do not meet the joint involvement criterion). Through the specialist panel, incidence is 54% with 12% COD failure rate. Through social media, incidence is 8% and GP confirmation takes an average of 6 days per respondent.
Final sample: 200 confirmed patients recruited over 8 weeks at a cost of €420 per completed interview - within the agreed budget.
References
Need patient recruitment for your health preference study? Contact SurveyEngine's sampling team for a no-obligation estimate.
Or Contact us at support@surveyengine.com — we're glad to help.