Table 2.
Adjusted IRR for each time period between the Democratic and Republican Counties
| Time period | IRR | 95% Confidence interval |
|---|---|---|
| Time 1 (10 February 2020 to 10 March 2020) | 18.3*** | (2.5, 131.4) |
| Time 2 (11 March 2020 to 9 April 2020) | 2.2*** | (1.8, 2.7) |
| Time 3 (10 April 2020 to 9 May 2020) | 2.0*** | (1.6, 2.6) |
| Time 4 (10 May 2020 to 8 June 2020) | 2.2*** | (1.7, 2.9) |
| Time 5 (9 June 2020 to 8 July 2020) | 2.4*** | (1.7, 3.2) |
| Time 6 (9 July 2020 to 7 August 2020) | 1.1 | (8.5 × 10−1, 1.4) |
| Time 7 (8 August 2020 to 6 September 2020) | 9.7 × 10−1 | (7.9 × 10−1, 1.2) |
| Time 8 (7 September 2020 to 6 October 2020) | 1.1 | (8.9 × 10−1, 1.3) |
| Time 9 (7 October 2020 to 5 November 2020) | 6.9 × 10−1*** | (5.8 × 10−1, 8.3 × 10−1) |
| Time 10 (6 November 2020 to 5 December 2020) | 4.3 × 10−1*** | (3.7 × 10−1, 5.2 × 10−1) |
* = P < 0.05; ** = P < 0.010; *** = P < 0.001
Adjusted IRR for each time period between the Democratic and Republican counties are calculated using the ZINB regression results from Appendix by 
.