Volume 25, Number 1—January 2019
Research Letter
Using the Health Belief Model to Analyze Instagram Posts about Zika for Public Health Communications
Jeanine P.D. Guidry
, Kellie E. Carlyle, Jessica G. LaRose, Paul Perrin, Marcus Messner, and Mark Ryan
, Kellie E. Carlyle, Jessica G. LaRose, Paul Perrin, Marcus Messner, and Mark Ryan
Table
Mann-Whitney U test results for dichotomous independent variables and median engagement for the Health Belief Model in analyzing Instagram posts about Zika for public health communications
| Engagement variable | Variable | Median present | Median absent | U* | Z | p value |
|---|---|---|---|---|---|---|
| Likes | Conspiracy theories | 188.00 | 64.00 | 52,426.000 | 3.525 | <0.001 |
| Comments | Conspiracy theories | 19.00 | 6.00 | 56,533.500 | 5.070 | <0.001 |
| Likes | Fear | 61.00 | 102.00 | 78,434.000 | −4.045 | <0.001 |
| Comments | Fear | 6.00 | 10.00 | 78,619.000 | −4.008 | <0.001 |
| Likes | Mosquito visual | 57.50 | 77.50 | 63,749.500 | −2.343 | 0.019 |
| Likes | Person visual | 89.50 | 57.50 | 141,628.000 | 3.733 | <0.001 |
| Likes | Perceived benefits prevention | 45.00 | 78.50 | 46,042.000 | −2.277 | 0.023 |
| Comments | Perceived benefits prevention | 4.00 | 7.00 | 45,176.000 | −2.575 | 0.010 |
| Likes | Perceived severity | 61.00 | 112.00 | 74.914.000 | −4.356 | <0.001 |
| Comments | Perceived severity | 6.00 | 10.00 | 75,207.500 | −4.291 | <0.001 |
*Test statistic for Mann-Whitney U test.
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Page updated: December 18, 2018
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