Table 2 Findings from the 13 clinical trials (17 patient groups) included in this meta-analysis

1

20

14.7

9.1

5.6

15.6

14.7

10.7

7.9

2.8

7.8

8.6

2

20

10.8

0.7

10.1

16.4

3.6

9

4.1

4.9

9.1

11.6

3

5

*

*

*

*

*

8

1.5

6.5

15.1

11.7

4a

16

11

8

3

9

11

10

9

1

7

7

4b

16

11

7

4

9

12

11

7

4

5

7

5a

10

12.8

2.7

10.1

15

13.9

6.1

2

4.1

4.3

4.8

5b

20

9.6

2.5

7.1

15

13.1

8.1

3.8

4.3

5.1

5.2

5c

40

9.1

11.9

-2.8

13.8

13.4

8.9

6.5

2.4

4.4

5.3

6

20

*

*

*

*

*

11.8

6.2

5.6

7.8

10

7

24

14.1

7.8

6.3

10.2

14.4

10.2

6.2

4

6.2

11.5

8a

20

13.4

8.5

4.9

16.3

12.9

9.8

7.3

2.5

8.1

7.5

8b

40

16.8

12.3

4.5

18.5

20

12

10.1

1.9

8.5

11.3

9

30

5.9

9.2

-3.3

13.7

11.9

2.2

3.1

- 0.9

8.1

11.7

10

18

18.2

14.3

3.9

16.3

17.3

10.6

9

1.6

9.6

10.5

11

*

15.3

10.6

4.7

12.2

13.4

9.8

7.4

2.4

7.8

7.8

12

40

11

5

6

14.2

15.3

7

3

4

7.8

8.7

13

15

9.5

0.9

8.6

15.8

19.9

*

*

*

*

*