Dec 2002-Nov 2003

Dec 2003-Nov 2005

Dec 2005-Nov 2006

mean

±

sd

p

mean

±

sd

p

mean

±

sd

p

Policy advocacy (%)

JP papers

Domestic

Positive

7.3

±

4.3

4.1

±

2.5

##

4.1

±

3.1

Negative

2.7

±

5.7

2.3

±

3.3

2.5

±

2.9

Foreign

Positive

0.2

±

0.7

3.9

±

2.9

###

2.6

±

3.9

Negative

0.2

±

0.7

0.1

±

0.3

0.1

±

0.4

US papers

Domestic

Positive

12.7

±

30.6

18.5

±

15.2

***

14.2

±

15.6

*

Negative

10.2

±

30.0

1.6

±

3.8

9.4

±

13.0

#

Foreign

Positive

4.2

±

12.0

3.9

±

11.5

4.0

±

6.8

Negative

6.3

±

15.1

2.4

±

7.0

4.5

±

10.1

Rationale for policy advocacy (%)

JP papers

Health

7.2

±

7.9

15.6

±

5.5

###

15.6

±

8.3

Economy

21.2

±

8.9

24.8

±

9.6

20.2

±

10.0

Balance

1.4

±

2.0

2.4

±

2.4

0.2

±

0.6

##

Acceptance

0.0

±

0.0

0.5

±

0.8

#

0.6

±

1.1

US papers

Health

38.1

±

43.1

*

50.1

±

15.8

***

57.3

±

25.4

***

Economy

33.4

±

29.3

49.9

±

23.4

***

49.8

±

23.7

***

Balance

6.1

±

11.3

14.2

±

16.2

***

24.7

±

30.3

*

Acceptance

20.2

±

31.3

*

34.3

±

18.9

***

42.2

±

19.2

***