Table 1.
Per country coefficient significance and R2 values for weighted and unweighted regression models.
| Regression model | Country | Weighted | Non-weighted | ||||
|---|---|---|---|---|---|---|---|
|
p Adjusted Tweets |
p log (Population) |
R2 |
p Adjusted Tweets |
p log (Population) |
R2 | ||
|
Model-1 Adjusted tweets versus log (Death Cases) |
Italy | 2 × 10–7 | – | 0.798 | 5 × 10–4 | – | 0.489 |
| Spain | 1 × 10–5 | – | 0.684 | 4 × 10–2 | – | 0.402 | |
| US | 5 × 10–6 | – | 0.340 | 3 × 10–2 | – | 0.073 | |
|
Model-2 log (Population) versus log (Death Cases) |
Italy | – | 9 × 10–4 | 0.456 | – | 9 × 10–3 | 0.431 |
| Spain | – | 8 × 10–4 | 0.482 | – | 2 × 10–3 | 0.475 | |
| US | – | 9 × 10–4 | 0.189 | – | 1 × 10–13 | 0.680 | |
|
Model-3 Adjusted tweets and log (Population) versus log (Death Cases) |
Italy | 3 × 10–6 | 1 × 10–2 | 0.857 | 3 × 10–4 | 8 × 10–4 | 0.737 |
| Spain | 7 × 10–4 | 4 × 10–2 | 0.748 | 3 × 10–1 | 1 × 10–1 | 0.477 | |
| US | 1 × 10–3 | 3 × 10–1 | 0.343 | 3 × 10–1 | 1 × 10–12 | 0.681 | |
Regression models explored: tweets intensity versus log death cases; log population versus log death cases and; tweets intensity and log population versus log death cases.