TABLE 1.
Population Characteristics and Study Patients at the 9 Study Sites: Resuscitation Outcomes Consortium Epistry-Trauma Project, United States and Canada, 2005–2007
| Birmingham | Dallas | Milwaukee | Ottawa | Pittsburgh | Portland | King County | Toronto | Vancouver | |
| Census data | |||||||||
| No. of census tracts | 197 | 506 | 307 | 188 | 120 | 397 | 400 | 1307 | 471 |
| Population | 876 053 | 2 332 423 | 940 164 | 845 670 | 291 071 | 1 789 457 | 1 846 947 | 6 436 543 | 2 356 429 |
| Race/ethnicity, % | |||||||||
| White | 66.0 | 59.2 | 65.6 | 79.5 | 68.2 | 84.1 | 76.3 | 63.2 | 60.3 |
| Black | 31.5 | 19.7 | 24.6 | 4.6 | 26.2 | 2.8 | 5.2 | 6.0 | 0.9 |
| Asian | 0.9 | 1.3 | 2.6 | 12.9 | 3.0 | 4.8 | 10.5 | 26.3 | 35.7 |
| Hispanic | 1.6 | 8.8 | 8.8 | 0.9 | 1.3 | 7.4 | 5.4 | 1.7 | 1.0 |
| Foreign born | 2.1 | 19.4 | 6.7 | 21.3 | 5.2 | 10.8 | 14.7 | 38.7 | 36.4 |
| Men, % | 47.5 | 49.9 | 47.9 | 48.4 | 47.5 | 49.6 | 49.8 | 48.6 | 48.8 |
| Age, y | |||||||||
| Median | 36.5 | 31.6 | 33.0 | 39.0 | 37.0 | 35.1 | 36.3 | 38.0 | 38.2 |
| <18, % | 24.9 | 27.6 | 26.4 | … | 19.5 | 25.4 | 22.7 | … | … |
| >65, % | 12.9 | 7.9 | 12.9 | 12.3 | 15.9 | 10.2 | 10.4 | 12.2 | 13 |
| Household composition | |||||||||
| Average household size | 2.5 | 2.8 | 2.5 | 2.54 | 2.19 | 2.53 | 2.46 | 2.81 | 2.69 |
| 1-person households, % | 27.3 | 27.9 | 33.0 | … | 40.4 | 26.7 | 30.1 | … | … |
| Household income, $a | |||||||||
| Median | 46 775 | 57 238 | 42 843 | 66 430 | 34 788 | 56 676 | 67 018 | 60 689 | 52 523 |
| >100 000, % | 10.1 | 14.5 | 7.0 | 32.5 | 6.7 | 13.1 | 19.3 | 28.0 | 22.3 |
| Non–primary language use, % | 0.8 | 10.3 | 3.2 | 10.3 | 1.1 | 3.8 | 3.6 | 21.5 | 23.2 |
| Education, % | |||||||||
| Less than high school | 21.1 | 26.0 | 23.7 | 11.3 | 20.0 | 12.9 | 9.9 | 17.5 | 15.6 |
| Graduate degree | 8.1 | 9.3 | 7.2 | 12.4 | 12.2 | 9.8 | 12.9 | 7.3 | 6 |
| Epistry-trauma data | |||||||||
| Sample size | 507 | 1116 | 740 | 910 | 547 | 449 | 1628 | 1781 | 650 |
| Age, y | |||||||||
| Median | 36 | 33 | 28 | 38 | 30 | 39 | 36 | 42 | 37 |
| <18, % | 6.3 | 16.7 | 19.7 | 16.1 | 21.1 | 10.5 | 17.2 | 18.2 | 7.1 |
| >65, % | 5.7 | 9.1 | 9.1 | 19.5 | 12.3 | 17.0 | 17.9 | 26.9 | 12.6 |
| Rapid sequence intubation, % | 0.4 | 0.0 | 0.0 | 0.0 | 4.2 | 15.6 | 17.1 | 0.0 | 0.0 |
| Cardiopulmonary resuscitation, % | 10.9 | 33.9 | 16.4 | 25.7 | 16.4 | 6.2 | 12.5 | 17.6 | 34.5 |
| First Glasgow Coma Scale score | |||||||||
| <8, % | 25.8 | 32.4 | 19.2 | 27.9 | 28.2 | 38.8 | 22.2 | 14.3 | 57.1 |
| Median | 11 | 10 | 14 | 11 | 14 | 9 | 13 | 15 | 6.5 |
| First systolic blood pressure reading, mmHg | |||||||||
| <90, % | 22.0 | 33.8 | 32.1 | 28.5 | 44.0 | 13.3 | 26.0 | 30.7 | 32.9 |
| Median | 110 | 110 | 100 | 115 | 90 | 129 | 110 | 90 | 110 |
| First respiratory rate reading, breaths per minute | |||||||||
| <10 or >29, % | 20.0 | 22.7 | 31.3 | 25.0 | 32.3 | 26.0 | 35.2 | 17.9 | 44.4 |
| Median | 20 | 18 | 20 | 18 | 18 | 18 | 20 | 18 | 20 |
| Air transportation, % | 12.2 | 2.7 | 3.0 | 2.3 | 16.7 | 3.0 | 4.5 | 1.5 | 9.6 |
| Penetrating injury, % | 28.5 | 27.9 | 31.1 | 14.7 | 25.3 | 10.6 | 17.6 | 6.6 | 17.4 |
Note. Ellipses indicate data not available.
a
Canadian dollar values were normalized to 2006 US currency.