Table 4.
Associations of tweet content, media type, and crisis stage with public engagement (January 1 to August 31, 2020).
| Variables | Likes | Retweets | ||||||
|
|
Incidence rate ratio | 95% CI | P value | Incidence rate ratio | 95% CI | P value | ||
| Intercept | 320.737 | 227.465-452.255 | <.001 | 325.265 | 231.247-457.509 | <.001 | ||
| Hashtags | 2.470 | 2.172-2.810 | <.001 | 2.813 | 2.469-3.206 | <.001 | ||
| Hyperlinks | 0.839 | 0.707-0.996 | .045 | 0.727 | 0.611-0.865 | <.001 | ||
| Media type | ||||||||
|
|
Text only | Reference | N/Aa | N/A | Reference | N/A | N/A | |
|
|
Photographs | 0.530 | 0.428-0.656 | <.001 | 0.476 | 0.384-0.591 | <.001 | |
|
|
Videos | 0.698 | 0.540-0.901 | .006 | 0.576 | 0.445-0.745 | <.001 | |
| Message type | ||||||||
|
|
Risk messages | 1.177 | 0.934-1.482 | .167 | 1.088 | 0.863-1.371 | .48 | |
|
|
Warnings | 1.334 | 1.089-1.634 | .005 | 1.544 | 1.261-1.891 | <.001 | |
|
|
Preparations | 1.007 | 0.836-1.212 | .944 | 1.008 | 0.838-1.213 | .93 | |
|
|
Uncertainty reduction | 2.210 | 1.882-2.595 | <.001 | 2.197 | 1.870-2.583 | <.001 | |
|
|
Efficacy | 1.096 | 0.926-1.297 | .288 | 1.200 | 1.014-1.420 | .03 | |
|
|
Reassurance | 1.551 | 1.320-1.821 | <.001 | 1.517 | 1.296-1.776 | <.001 | |
| Crisis stage | ||||||||
|
|
Precrisis | Reference | N/A | N/A | Reference | N/A | N/A | |
|
|
Initial event | 2.931 | 2.309-3.721 | <.001 | 2.471 | 1.945-3.141 | <.001 | |
|
|
Maintenance | 2.355 | 1.825-3.039 | <.001 | 1.623 | 1.256-2.096 | .001 | |
aN/A: not applicable.