Table 3 Crude mortality rates and risk ratios of patients with TBI with confirmed intracranial lesions by primary referral to a regional or specialised centre, N = 1,180

- 1-day

12

0.42 (0.09–1.2)

1.9 (0.9–3.7)

4.65 (1.26–17.06)

0.01

**

**

- 7-day

72

5.2 (3.7–7.0)

7.6 (5.3–10.4)

1.46 (0.94–2.29)

0.09

**

**

- 30-day

134

11.4 (9.2–13.9)

11.2 (8.5–15.5)

0.98 (0.70–1.36)

0.91

1.04 (0.65–1.63)

0.87

- 90-day

171

15.3 (12.8–18.2)

13.2 (10.2–16.6)

0.86 (0.64–1.15)

0.29

1.05 (0.73–1.5)

0.79

- 1-year

246

22.7 (19.8–26.1)

17.9 (14.6–21.8)

0.79 (0.62–1.00)

0.05

0.96 (0.72–1.25)

0.72