Table 1.
Rates of ED presentations for TBI in North Queensland (2007–2015) per 100,000 population
| Selected variables | Presentations | Population at risk | Rate (100,000 population) | Incidence rate ratio (RR) | |
|---|---|---|---|---|---|
| Rate (95% CIs) | RR (95% CIs) | P | |||
| All Traumatic Brain Injuries | 3083 | 3,151,154 | 97.8 (94.4–101.3) | ||
| Indigenous status | |||||
| Non-Indigenous | 2375 | 2,753,418 | 86.3 (82.8–89.7) | ||
| Indigenous | 662 | 397,736 | 166.4 (153.8–179.1) | 1.93 (1.77–2.10) | <0.001 |
| Unknown | 46 | ||||
| Sex | |||||
| Female | 918 | 1,553,724 | 59.1 (55.3–62.9) | ||
| Male | 2165 | 1,597,430 | 135.5 (129.8–141.2) | 2.29 (2.12–2.48) | <0.001 |
| Age categories | |||||
| 15–24 | 1187 | 655,073 | 181.2 (170.9–191.5) | ||
| 25–34 | 617 | 655,420 | 94.1 (86.7–101.6) | 0.52 (0.47–0.57) | <0.001 |
| 35–44 | 505 | 671,141 | 75.2 (68.7–81.8) | 0.42 (0.37–0.46) | <0.001 |
| 45–54 | 432 | 649,583 | 66.5 (60.2–72.8) | 0.37 (0.33–0.41) | <0.001 |
| 55–64 | 342 | 519,937 | 65.8 (58.8–72.7) | 0.36 (0.32–0.41) | <0.001 |
| Year of ED presentation | |||||
| 2007 | 307 | 328,306 | 93.5 (83.0–104.0) | ||
| 2008 | 338 | 337,217 | 100.2 (89.5–110.9) | 1.07 (0.92–1.25) | 0.400 |
| 2009 | 343 | 344,501 | 99.6 (89.0–110.1) | 1.06 (0.91–1.24) | 0.448 |
| 2010 | 322 | 349,363 | 92.2 (82.1–102.2) | 0.99 (0.84–1.15) | 0.888 |
| 2011 | 303 | 353,502 | 85.7 (76.1–95.4) | 0.92 (0.78–1.07) | 0.301 |
| 2012 | 285 | 356,850 | 79.9 (70.6–89.1) | 0.85 (0.73–1.00) | 0.060 |
| 2013 | 347 | 359,589 | 96.5 (86.3–106.7) | 1.03 (0.89–1.20) | 0.717 |
| 2014 | 399 | 360,815 | 110.6 (99.7–121.4) | 1.18 (1.02–1.37) | 0.030 |
| 2015 | 439 | 361,011 | 121.6 (110.2–133.0) | 1.30 (1.12–1.50) | 0<.001 |
| Remoteness (ABS ARIA classification) | |||||
| 3. Outer Regional | 2491 | 2,738,822 | 91.0 (87.4–94.5) | ||
| 4. Remote | 465 | 252,515 | 184.1 (167.4–200.9) | 2.02 (1.83–2.24) | <0.001 |
| 5. Very Remote | 127 | 159,817 | 79.5 (65.6–93.3) | 0.87 (0.73–1.04) | 0.149 |
| Socio-Economic Indexes for Areas (SEIFA) decile | |||||
| 1–2 | 1214 | 757,007 | 160.4 (151.3–169.4) | ||
| 3–4 | 883 | 1,049,982 | 84.1 (78.5–89.6) | 0.52 (0.48–0.57) | <0.001 |
| 5–6 | 349 | 563,371 | 61.9 (55.4–68.4) | 0.39 (0.34–0.44) | <0.001 |
| 7–8 | 467 | 524,536 | 89.0 (81.0–97.1) | 0.56 (0.50–0.62) | <0.001 |
| 9–10 | 170 | 256,258 | 66.3 (56.4–76.3) | 0.41 (0.35–0.49) | 0.000 |