Table 1 Detailed definition of different sentiment categories for HPV vaccines related tweets
Sentiment | Description | |
|---|---|---|
Positive | Show positive opinion or prompt the uptake of HPV vaccine | |
Negative | Safety | Concerns or doubt on the safety issues of HPV vaccine or present vaccine injuries |
Efficacy | Concerns or doubt on the effectiveness of HPV vaccine | |
Cost | Concerns on the cost of HPV vaccine (e.g.: money or time) | |
Resistant | Resistance to HPV vaccines due to cultural or emotional issues | |
Others | Other concerns | |
Neutral | Related to HPV vaccine topic but contains no sentiment or sentiment is unclear or contains both negative and positive sentiment | |
Unrelated | Not related to HPV vaccine topic | |