Table 1

Coding scheme with inclusion and exclusion criteria

ThemeDefinition of themesInclusion criteriaExclusion criteria
Seeking explicit adviceA tweet seeking advice regarding concussion
diagnosis, treatment, management and effects
N/AN/A
Seeking or clarifying personal statusA tweet seeking clarification or further information
about a person's current situation/status
Seeking clarification of another user's status on concussion
Element of dialogue often in reply to an earlier tweet
Seeking information that is non-concussion related.
Sharing personal information/situationA tweet which shares a personal story, situation or
experience
Statements about concussion
Personal thoughts about concussionincluding self, friend or family
N/A
Reporting signs and symptomsA tweet which reports or implies explicit or implicit concussion sign(s) or
symptom(s)
Mention of the word ‘sign’ or ‘symptom’
General statements of having symptoms of concussion
Incorrect or unrelated symptomology
N/A
Inferred managementA tweet which provides direction for management
or specifies what was done following a concussion
Misinformation (to note for analysis)
Explicit or implicit
N/A
NewsA tweet which shares or references a news story/linkUse of known news hash tags, for example: #CNN, #BBC, #ESPNN/A
AdvertisingA tweet which draws the reader's attention to an online publicationPersonal blogs
Company blogs
Products
Organisations
News stories
DownplayA tweet which minimises the significance or seriousness of concussionMakes light of concussion
Joking
De-emphasises
N/A
Miscellaneous/irrelevantA tweet which does not fall into any other categoryNon-sensical
Objectionable
Alternative use of the word ‘concussion’
Makes no grammatical sense
Able to fit into any other category