Tab. I.
Focus on flu (2015-2019 and 2015-2020 periods). Time series bi-directional cross-correlation coefficients for 1 week displaying relationships between Google Trends Terms (“Flu” and “Symptoms of Flu”) and cases reported by the ISS. Used Spearman’s rank correlation coefficient.
| Lag in week compared to deaths reported by ISS | |||
|---|---|---|---|
| 2015-2019 period | -1 | 0 | +1 |
| Flu | 0.8257* | 0.8966* | 0.9211* |
| Symptoms of Flu | 0.7657* | 0.8380* | 0.8722* |
| 2015-2020 period | |||
| Flu | 0.7521* | 0.7755* | 0.7704* |
| Symptoms of Flu | 0.7991* | 0.8377* | 0.8212* |
* p-value < 0.001.