Suburban vs. urban location: mechanism of injury, pre-COVID-19 and COVID-19 compared with 2019*
| Suburban | Urban | |||||||
| January to February | 2019 (n=519) | 2020 (n=522) | |Δ| | P value | 2019 (n=1318) | 2020 (n=1378) | |Δ| | P value |
| Blunt (%) | 485 (93.4) | 486 (93.1) | 0.3% | 0.921 | 1073 (81.4) | 1097 (79.6) | 1.8% | 0.258 |
| Assault (%) | 20 (3.9) | 11 (2.1) | 1.8% | 0.140 | 108 (8.2) | 143 (10.4) | 2.2% | 0.060 |
| FFS (%) | 207 (39.9) | 186 (35.6) | 4.3% | 0.177 | 239 (18.1) | 202 (14.7) | 3.4% | 0.017 |
| MVC (%) | 194 (37.4) | 219 (42.0) | 4.6% | 0.148 | 352 (26.7) | 358 (26.0) | 0.7% | 0.700 |
| Penetrating (%) | 34 (6.6) | 36 (6.9) | 0.3% | 0.921 | 245 (18.6) | 281 (20.4) | 1.8% | 0.258 |
| GSW (%) | 10 (1.9) | 9 (1.7) | 0.2% | 0.990 | 133 (10.1) | 141 (10.2) | 0.1% | 0.954 |
| SW (%) | 23 (4.4) | 23 (4.4) | 0% | 0.999 | 86 (6.5) | 119 (8.6) | 2.1% | 0.046 |
| March to May | 2019 (n=911) | 2020 (n=642) | |Δ| | P value | 2019 (n=2388) | 2020 (n=1998) | |Δ| | P value |
| Blunt (%) | 844 (92.6) | 558 (86.9) | 5.7% | <0.001 | 1957 (82.0) | 1498 (75.0) | 7% | <0.001 |
| Assault (%) | 26 (2.9) | 18 (2.8) | 0.1% | 0.999 | 236 (9.9) | 214 (10.7) | 0.8% | 0.395 |
| FFS (%) | 327 (35.9) | 232 (36.1) | 0.2% | 0.965 | 351 (14.7) | 292 (14.6) | 0.1% | 0.972 |
| MVC (%) | 271 (29.7) | 273 (42.5) | 12.8% | <0.001 | 705 (29.5) | 539 (27.0) | 2.5% | 0.067 |
| Penetrating (%) | 67 (7.4) | 84 (13.1) | 5.7% | <0.001 | 431 (18.0) | 500 (25.0) | 7% | <0.001 |
| GSW (%) | 24 (2.6) | 18 (2.8) | 0.2% | 0.965 | 199 (8.3) | 275 (13.8) | 5.5% | <0.001 |
| SW (%) | 39 (4.3) | 52 (8.1) | 3.8% | 0.002 | 190 (8.0) | 186 (9.3) | 1.3% | 0.124 |
Statistically significant associations are noted in bold print
*Because the specific injury mechanism subcategories examined are not inclusive of all possible mechanisms of injury, their sum will not equal the total number of contacts in the blunt or penetrating trauma category.
FFS, fall from standing; GSW, gunshot wound; MVC, motor vehicle collision; SW, stab wound.