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Table 3 Time associated with recruiting 100 participants through stop smoking services

From: Lessons learned from recruiting socioeconomically disadvantaged smokers into a pilot randomized controlled trial to explore the role of Exercise Assisted Reduction then Stop (EARS) smoking

  Denominator To recruit 100 (letter only - 6.8% response) To recruit 100 (letter plus follow-up telephone calls - 11.1% response)
Activity Number Time (minutes) Number Time (minutes) Number Time (minutes)
Database searching Per practice/location 60 Per practice 60 Per practice 60
Initial screening To produce 200 eligible 60 1,471 441 901 270
Mailing invitations 200 240 1,471 1,765 901 1,081
GP screening of responses 1 2 100 200 100 200
Associated researcher time 1 24* 100 2,400 100 7,547
157**
  1. *Letter only. **Letter plus follow-up telephone call. GP: General practitioner.