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Table 3 Adherence and outcome evaluation attendance by recruitment strategy

From: Effective recruitment strategies in an exercise trial for patients with fibromyalgia

Recruitment strategy

Adherence ratea (mean ± SD)

Never attended outcome evaluationb (%)

Attendance rate (%)

12-week evaluation

24-week evaluation

52-week evaluation

Newspaper advertisement (n = 113)c

52.7 ± 32.9

8.0

81.4

77

68.1

Clinical referral (n = 32)

50.5 ± 32.1

6.3

78.1

78.1

65.6

Patient database (n = 30)

59.2 ± 29.7

6.7

76.7

80.0

73.3

Flyers (n = 19)

59.1 ± 23.8

5.3

84.2

84.2

84.2

Web advertisement (n = 16)

65.9 ± 27.2

12.5

75

81.3

56.3

Word of mouth (n = 3)

49.4 ± 31.0

0.0

100

100

66.7

Unknown (n = 13)

59.1 ± 28.4

7.7

92.3

92.3

84.6

  1. aTreated participants only; adherence rate defined as mean percentage of classes attended out of total classes offered
  2. bParticipants who did not attend the 12-, 24-, or 52-week outcome evaluations
  3. cn, number of randomized participants from recruitment strategy