Table 1.
Distribution of community mitigation measures in all U.S. counties (n=3142), overall and by urbanicity — United States, March 19–September 30, 2020.
| No. (column%) |
|||||
|---|---|---|---|---|---|
| Mitigation measures | All counties | Large metropolitan counties | Medium and small metropolitan counties | Nonmetropolitan counties | P-value† |
| Overall | 3142 | 436 | 730 | 1976 | — |
| U.S. population represented, n (row%) | 328,239,523 | 183,480,600 (56) | 98,695,862 (30) | 46,063,061 (14) | — |
| Length of closure, days | <0.0001 | ||||
| 0 days of closure | 339 (10.8) | 3 (0.7) | 56 (7.7) | 280 (14.2) | |
| 1–29 days of closure | 836 (26.6) | 105 (24.1) | 178 (24.4) | 553 (28.0) | |
| 30–50 days of closure | 687 (21.9) | 61 (14.0) | 163 (22.3) | 463 (23.4) | |
| 51–59 days of closure | 480 (15.3) | 94 (21.6) | 128 (17.5) | 258 (13.1) | |
| >59 days of closure | 800 (25.5) | 173 (39.7) | 205 (28.1) | 422 (21.4) | |
| Mask mandate at reopening* | <0.0001 | ||||
| Yes | 674 (21.5) | 174 (39.9) | 187 (25.6) | 313 (15.8) | |
| No | 2468 (78.5) | 262 (60.1) | 543 (74.4) | 1663 (84.2) | |
| Mask mandate by length of closure* | |||||
| 0 days of closure | |||||
| Mask mandate | 0 | 0 | 0 | 0 | — |
| No mask mandate | 339 (100) | 3 (100) | 56 (100) | 280 (100) | |
| 1–29 days of closure | |||||
| Mask mandate | 0 | 0 | 0 | 0 | — |
| No mask mandate | 836 (100) | 105 (100) | 178 (100) | 553 (100) | |
| 30–50 days of closure | |||||
| Mask mandate | 5 (0.7) | 5 (8.2) | 0 | 0 | <0.0001 |
| No mask mandate | 682 (99.3) | 56 (91.8) | 163 (100.0) | 463 (100.0) | |
| 51–59 days of closure | |||||
| Mask mandate | 35 (7.3) | 17 (18.1) | 12 (9.4) | 6 (2.3) | <0.0001 |
| No mask mandate | 445 (92.7) | 77 (81.9) | 116 (90.6) | 252 (97.7) | |
| >59 days of closure | |||||
| Mask mandate | 634 (79.3) | 152 (87.9) | 175 (85.4) | 307 (72.7) | <0.0001 |
| No mask mandate | 166 (20.8) | 21 (12.1) | 30 (14.6) | 115 (27.3) | |
⁎
For counties in states that did not close, a reference date of April 24, 2020 was used.
†
P-value < .05 were considered statistically significant based on results from chi-squared tests or Fisher's exact tests (for comparisons with at least one cell with <5 observations).