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Table 4 Monthly recruitment figures by site, including estimated monthly recruitment at Greater Glasgow under two scenarios

From: Meeting the challenges of recruitment to multicentre, community-based, lifestyle-change trials: a case study of the BeWEL trial

Month

Ayrshire & Arran

Forth valley

Tayside

Actual, greater Glasgow

Estimated, Greater glasgow (scenario 1)

Estimated, greater Glasgow (scenario 2)

Actual total monthly recruitment

Estimated total monthly recruitment (scenario 1)

Estimated total monthly recruitment (scenario 2)

November 2010

0

0

1

0

0

0

1

1

1

December 2010

0

1

0

0

0

0

1

1

1

January 2011

2

7

3

0

0

0

12

12

12

February 2011

6

11

6

0

0

0

23

23

23

March 2011

3

6

10

0

6

13

19

25

32

April 2011

3

7

1

0

4

7

11

15

18

May 2011

3

7

7

0

6

11

17

23

28

June 2011

5

4

8

0

6

11

17

23

28

July 2011

9

6

8

0

8

15

23

31

38

August 2011

9

5

5

0

6

13

19

25

32

September 2011

7

8

3

0

6

12

18

24

30

October 2011

11

5

7

0

8

15

23

31

38

November 2011

6

7

6

1

6

13

20

25

32

December 2011

9

2

21

0

4

8

132

17

 

January 2012

3

1

4

0

3

5

8

11

 

February 2012

7

4

9

0

7

13

20

27

 

March 2012

7

6

10

0

8

15

23

  

April 2012

13

10

9

0

11

21

32

  

May 2012

18

3

4

4

8

17

29

  

Total

      

329

314

313

  1. Scenario 1, the two Glasgow sites on board in March 2011 and have a combined recruitment equivalent to the average of the monthly rates at the three other sites; scenario 2, the two Glasgow sites on board in March 2011 and recruit at a rate equivalent to the average of the monthly rates at the other three sites. In scenario 1, BeWEL would have reached its target about three months earlier; in scenario 2, the target would have been met about six months earlier.