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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Alzheimer Dis Assoc Disord. 2019 Oct-Dec;33(4):299–306. doi: 10.1097/WAD.0000000000000353

Table 1.

ADRC Retention Survey Responses

Strategy/tactic ADRCs, n (%)* ADRCs, n (%)#
Community involvement 25 (100) 24 (100)
 • Involve participants in retention (e.g., testimonials) 21 (84) 20 (83)
 • Maintain community advisory boards to assist with understanding participant groups 19 (76) 19 (79)
 • Involve advocates in review of ongoing practices 14 (56) 14 (58)
 • Involve advocates in study design 5 (20) 5 (21)
 • Other
 ○   Ethics committee that includes participants
 ○   Focus groups
 ○   Participant satisfaction surveys
9 (36) 9 (38)
Study identity 25 (100) 24 (100)
 • Website 25 (100) 24 (100)
 • Center logo 23 (92) 22 (92)
 • Electronic or print newsletters 22 (88) 21 (88)
 • Facebook 17 (68) 17 (71)
 • Twitter 11 (44) 11 (46)
 • YouTube 7 (28) 7 (29)
 • Blog 4 (16) 4 (17)
 • Other
 ○   Live webinars
 ○   ‘Ask the Expert’ section of center website and participant feedback link
6 (24) 6 (25)
Study personnel 24 (96) 23 (96)
 • Diverse staff 23 (92) 22 (92)
 • Identify specific staff members who are responsible for retention of particular participants 20 (80) 19 (79)
 • Ensure that specific staff (study clinician) see participants consistently over time 18 (72) 17 (71)
 • New staff training on retention 14 (56) 14 (58)
 • Annual staff training on retention 9 (36) 9 (38)
 • Other
 ○   Twice annual staff retreat with focus on retention
1 (4) 1 (4)
Study description 25 (100) 24 (100)
 • Emphasize importance of long-term participation in recruitment materials and consents 25 (100) 24 (100)
 • Provide opportunity to ask questions of qualified researchers at each visit 25 (100) 24 (100)
 • Offer other opportunities for communication/interaction with faculty/staff 24 (96) 23 (96)
 • Engage in family conferences during participation (e.g., for change in diagnosis) 20 (80) 19 (79)
 • Engage in family conferences prior to enrollment 10 (40) 9 (38)
 • Video description 4 (16) 4 (17)
 • Utilize decision aids during informed consent 4 (16) 4 (17)
 • Other
 ○   Spanish translation
 ○   Video for lumbar puncture
2 (8) 2 (8)
Reminders 23 (92) 22 (92)
 • Between-visit telephone calls 17 (68) 16 (67)
 • Send pre-visit materials for completion 17 (68) 16 (67)
 • Mailed appointment cards 15 (60) 15 (63)
 • Appointment cards at each visit 8 (32) 8 (33)
 • Regular PI letters or emails between visits 6 (24) 5 (21)
 • Text message reminders 2 (8) 1 (4)
 • Other 0 (0) 0 (0)
Contact and scheduling 25 (100) 24 (100)
 • Use data capture system (e.g., REDCap) to monitor visit windows 23 (92) 22 (92)
 • Use alerts to study staff to send visit reminders 17 (68) 16 (67)
 • Use automated email systems to remind participants about visits 3 (12) 3 (13)
 • Use automated telephone systems to remind participants about visits 4 (16) 4 (17)
 • Use automated text messaging systems to remind participants about visits 1 (4) 1 (4)
 • Other
 ○ ‘personal’ touch calls or emails from familiar staff
1 (4) 1 (4)
Visit characteristics 25 (100) 24 (100)
 • Offer breaks during visits 25 (100) 24 (100)
 • Permit telephone completion of study partner activities 25 (100) 24 (100)
 • Follow participants by phone if it becomes impossible for them to attend visits due to disease severity 25 (100) 24 (100)
 • Offer water and snacks during visits 23 (92) 22 (92)
 • Schedule visits around participants’ needs/energy level 22 (88) 21 (88)
 • Permit splitting of visits into 2 or more sessions over 2 or more days 21 (84) 20 (83)
 • Permit splitting of visits into 2 sessions in a single day 20 (80) 19 (79)
 • Hold visits at convenient (off site) locations 10 (40) 9 (38)
 • Perform home visits 9 (36) 8 (33)
 • Hold visits during non-traditional hours (evenings) 5 (20) 4 (17)
 • Hold visits during non-traditional days (weekends) 4 (16) 3 (13)
 • Other
 ○ Nursing home visits
1 (4) 1 (4)
Benefits of study 25 (100) 24 (100)
 • Provide feedback on annual UDS evaluation to PCP or other provider if requested by participant 22 (88) 21 (88)
 • Provide diagnostic results to participants 20 (80) 19 (79)
 • Provide feedback on non-UDS evaluations (lab values, evaluations, MMSE, etc) to PCP or other provider if requested by participant 19 (76) 18 (75)
 • Provide neuropsychological test results to participants 17 (68) 16 (67)
 • Provide laboratory test results to participants 17 (68) 16 (67)
 • Offer support groups 17 (68) 17 (71)
 • Provide MRI biomarker results to participants 12 (48) 11 (46)
 • Provide amyloid PET results to participants 8 (32) 8 (33)
 • Provide CSF biomarker results to participants 7 (28) 7 (29)
 • Provide FDG PET biomarker results to participants 7 (28) 7 (29)
 • Provide genetic test results to participants 3 (12) 3 (13)
 • Provide free clinical care (e.g., medication prescriptions) to participants 3 (12) 3 (13)
 • Other
 ○ Provide access to a social worker
1 (4) 1 (4)
Financial incentives 19 (76) 18 (75)
 • Provide annual cash payment for completing optional study procedures (e.g., lumbar puncture) 11 (44) 11 (46)
 • Provide annual cash payment for completing study visits 9 (36) 9 (38)
 • Provide annual non-cash payment (e.g., gift card) for completing optional study procedures (e.g., lumbar puncture) 5 (20) 5 (21)
 • Provide annual non-cash payment (e.g., gift card) for completing study visits 5 (20) 4 (17)
 • Other 0 (0) 0 (0)
Reimbursements or cost coverage 24 (96) 23 (96)
 • Cover parking costs 23 (92) 22 (92)
 • Reimburse for taxis or public transportation 17 (68) 16 (67)
 • Provide meal cards or reimburse for meals during visits 13 (52) 12 (50)
 • Provide gas cards or reimburse for mileage 7 (28) 7 (29)
 • Offer lodging for long visits for participants who travel great distances 5 (20) 5 (21)
 • Offer childcare during visits 0 (0) 0 (0)
 • Other 0 (0) 0 (0)
Non-financial incentives 22 (88) 21 (88)
 • Hold participant gratitude events 21 (84) 20 (83)
 • Send seasonal holiday cards 15 (60) 14 (58)
 • Offer participants value nominal gifts such as pens, magnets, etc. 13 (52) 12 (50)
 • Provide participants awards or certificates of appreciation for milestone visits (e.g., 5- or 10-year interval) 11 (44) 10 (42)
 • Send birthday cards 9 (36) 8 (33)
 • Hold participant holiday celebrations 5 (20) 4 (17)
 • Other
 ○ ADRC-stamped chocolate bars
 ○ Bereavement cards
 ○ Birthday telephone calls
4 (16) 4 (17)
Special tracking methods 18 (72) 17 (71)
 • Maintain phone tree of individuals to contact if the participant cannot be reached 16 (64) 15 (63)
 • Follow participants on social media and send private messages to remind of appointments or reach out if difficult to reach through traditional modes of communication 0 (0) 0 (0)
 • Attend patient clinical visits as a means to contact them and request completion of study visits 10 (40) 10 (42)
 • Other
 ○ No shows triaged for more intense calls and follow-up
 ○ Letters asking for contact if phone number has changed or cannot be reached
2 (8) 2 (8)
*

Proportion of responses based on all ADRCs responding (n=25).

#

Proportion of responses based on ADRCs responses used in multivariable models (n=24).