Table 2.
Observed fire day observations, arithmetic and geometric means (standard deviation), and median values for the ground personnel used per fire day pre-COVID and during-COVID for each fire region.
| Ground personnel use per pre-COVID fire day | Ground personnel use per during-COVID fire day | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Fire Region (n total fire days) | n Fire Days | Arithmetic Mean (SD) | Geom. Mean (SD) | Median | n Fire Days | Arithmetic Mean (SD) | Geom.Mean (SD) | Median | Mann–Whitney-Wilcoxon test |
| Southern CA (n = 2628) | 1512 | 766 (321) | 253 (6) | 344.5 | 1116 | 231 (282) | 81 (7) | 133.5 | p < 0.001 |
| Southwest (n = 2037) | 897 | 135 (156) | 64 (4) | 79 | 1140 | 65 (91) | 23 (6) | 37 | p < 0.001 |
| Great Basin (n = 3002) | 1607 | 136 (158) | 59 (5) | 89 | 1395 | 70 (102) | 27 (5) | 41 | p < 0.001 |
| Northern CA (n = 3038) | 1582 | 783 (870) | 361 (5) | 443 | 1456 | 456 (559) | 196 (5) | 289 | p < 0.001 |
| Northern Rockies (n = 3967) | 1807 | 99 (105) | 39 (6) | 64 | 2160 | 65 (67) | 27 (5) | 41 | p < 0.001 |
| Rocky Mountains (n = 1917) | 1040 | 129 (156) | 42 (7) | 82 | 877 | 104 (146) | 32 (6) | 53 | P < 0.001 |
| Northwest (n = 4650) | 2234 | 219 (244) | 91 (5) | 132 | 2416 | 178 (190) | 81 (5) | 122 | p < 0.001 |
The fire regions are ordered by the observed change in the arithmetic mean ground personnel use per fire day for pre-COVID to during-COVID fire days. The null hypothesis for the Mann–Whitney-Wilcoxon test posited that the median ground personnel used/fire day were equal for pre- and during-COVID fire days, and the alternative hypothesis posited that the median ground personnel used/fire day during-COVID would be less than the pre-COVID mean and median.