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Table 1 Rates of ED presentations for TBI in North Queensland (2007–2015) per 100,000 population

From: Incidence of emergency department presentations for traumatic brain injury in Indigenous and non-Indigenous residents aged 15–64 over the 9-year period 2007–2015 in North Queensland, Australia

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