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Table 3 Number of individuals recruited by recruitment method and study

From: Recruitment of older adults to three preventative lifestyle improvement studies

Study Target sample size Total recruited Recruitment method
GP mail-out (% of total recruited) Referrala (% of total recruited) South Yorkshire Cohort (% of total recruited) Otherb (% of total recruited) Community engagement (% of total recruited) Unknown (% of total recruited)
Lifestyle Matters feasibility study N/A 28 N/A 0 N/A 3 (10.7) 25 (89.3) 0
Lifestyle Matters RCT 268 288 270 (93.8) 15 (5.2) N/A 3 (1.0) 0 0
Putting Life In Years RCT N/Ac 157 136 (86.6) 3 (1.9) 11 (7.0) 5 (3.2) 0 2 (1.3)
  1. aDistrict nurse referrals, plus participants who were signposted from other services such as Sheffield 50 + or from a health and social care worker
  2. bRecruitment through family member/friend or research staff in addition to participants seeing posters in libraries and other recruitment literature in the public domain, such as advertisements in their local newspaper
  3. cThe target sample size was 248; however, recruitment halted early (63% of target) due to issues relating to service provide capacity to deliver the intervention at scale
  4. GP general practitioner, N/A not applicable, RCT randomised controlled trial