Fig 1.
UK progression of standardised packaging policy (2008–2016) and the two time periods data were collected (Time 1 and 2).
Fig 2.
Sampling pathway for identifying c. 500 Tweets from each Time period.
Table 1.
Codebook.
Table 2.
Changes in Tweet and Twitter user characteristics between Times 1 and 2, n = 1038.
Table 3.
Relationship between time and evidence dissemination.
Table 4.
Relationship between Sentiment, Twitter user and URL author sector and evidence quality, n = 726.