Table 1 Demographic characteristics of expert panel for each survey round

Gender

 Male

19 (38%)

19 (39.6%)

18 (45%)

 Female

31 (62%)

29 (60.4%)

22 (55%)

Number of years of experience relevant to physical activity messaging

 0–1 years

3 (6%)

3 (6.3%)

2 (5%)

 2–5 years

8 (16%)

8 (16.6%)

7 (17.5%)

 5–10 years

15 (30%)

15 (31.3%)

12 (30%)

 10–20 years

18 (36%)

16 (33.3%)

14 (35%)

 20 + years

6 (12%)

6 (12.5%)

5 (12.5%)

Discipline

 Academia

26 (52%)

25 (52.1%)

22 (55%)

 Healthcare professional or other professional

15 (30%)

14 (29.2%)

9 (22.5%)

 Government official or policymaker

9 (18%)

9 (18.8%)

9 (22.5%)

Country of residence

 Australia

3 (6%)

3 (6.3%)

2 (5%)

 Canada

8 (16%)

7 (15%)

6 (15%)

 Costa Rica

1 (2%)

1 (2.1%)

1 (2.5%)

 India

2 (4%)

2 (4.2%)

0 (0%)

 Indonesia

2 (4%)

2 (4.2%)

2 (5%)

 Ireland

2 (4%)

2 (4.2%)

2 (5%)

 New Zealand

2 (4%)

2 (4.2%)

2 (5%)

 Nigeria

1 (2%)

1 (2.1%)

1 (2.5%)

 United Kingdom

27 (54%)

26 (54.2%)

22 (55%)

 United States

2 (4%)

2 (4.2%)

2 (5%)