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Focus on flu (2016-2020 period). Time series bi-directional cross-correlation coefficients for 1 week displaying relationships between Google Trends Terms (“Flu” and “Symptoms of Flu”) and deaths reported by the ISS. Used Spearman’s rank correlation coefficient.
| Lag in week compared to deaths reported by ISS | |||
|---|---|---|---|
| 2016-2020 period | -1 | 0 | +1 |
| Flu | 0.6015* | 0.7545* | 0.8366* |
| Symptoms of Flu | 0.6177* | 0.7439* | 0.8056* |
* p-value < 0.001.
