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Table 1 Recruitment of parents at baseline and follow-up strategies used in questionnaire delivery by trial site

From: Recruitment and retention strategies and the examination of attrition bias in a randomised controlled trial in children’s centres serving families in disadvantaged areas of England

Trial site

Recruitment strategies used

Follow-up strategies used

Bristol

Trial packs posted to parents by researchers. Trial packs given out to parents by researchers in face-to-face sessions in the CC*

Trial packs posted to parents by researchers Trial packs given out to parents by researchers in face-to-face sessions in the CC. Telephone reminders and completion of questionnaires over the phone

Newcastle

Trial packs posted to parents by researchers. Trial packs posted to parents by CC staff. Trial packs given out to parents by researchers in face-to-face sessions in the CC

Trial packs posted to parents by researchers. Trial packs given out to parents by researchers in face-to-face sessions in the CC. Telephone reminders and completion of questionnaires over the phone

Norwich

Trial packs posted to parents by researchers. Trial packs given out to parents by researchers in face-to-face sessions in the CC. Outreach sessions in parents’ own home by CC staff

Trial packs posted to parents by researchers Trial packs given out by CC staff in the CC Trial packs posted to parents by CC staff Telephone reminders and completion of questionnaires over the phone

Nottingham

Trial packs posted to parents by CC staff. Trial packs given out to parents by CC staff in face-to-face sessions in the CC

Trial packs posted to parents by researchers. Trial packs given out to parents by researchers in face-to-face sessions in the CC. Telephone reminders and completion of questionnaires over the phone

  1. *Children’s centre.