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Significance of change point with respect to lockdown
| Country | Date of first case reporting (Dfr) | Lockdown date (Dl) | Case weeks before lockdown {CW = (Dl − Dfr)/7} | CP week (CPw) | Delta (D = CPw-CW) |
|---|---|---|---|---|---|
| India | 30 Jan | 25 Mar | 7.9 | 9 | 1.1 |
| USA | 13 Jan | 19 Mar | 9.4 | 8 | -1.4 |
| France | 24 Jan | 17 Mar | 7.6 | 7 | -0.6 |
| Italy | 31 Jan | 09 Mar | 5.4 | 6 | 0.6 |
| Japan | 04 Jan | 27 Feb | 7.7 | 9 | 1.3 |
| Iran | 19 Feb | 28 Mar | 5.4 | 4 | -1.4 |
| Spain | 31 Jan | 14 Mar | 6.1 | 7 | 0.9 |
| China | 31 Dec | 25 Jan | 3.6 | 6.5 | 2.9 |
