From: Nationwide improvements in geriatric mortality due to traumatic brain injury in Japan
 | Total | 2004–2006 | 2007–2009 | 2010–2012 | 2013–2015 | 2016–2018 |  |
---|---|---|---|---|---|---|---|
Isolated TB | N = 28,015 | N = 657 | N = 2668 | N = 5878 | N = 9572 | N = 9240 |  |
Death at hospital discharge | 4588 (16.38%) | 194 (29.5%) | 560 (21.0%) | 1058 (18.0%) | 1467 (15.3%) | 1309 (14.2%) | Â |
 |  |  |  |  |  |  | OR for 3–year increment |
Crude OR | Â | reference | 0.63 | 0.52 | 0.43 | 0.39 | 0.83 |
95% CI |  |  | (0.52–0.77) | (0.44–0.63) | (0.36–0.52) | 0.33–0.47) | (0.81–0.86) |
Adjusted OR* | Â | reference | 0.63 | 0.57 | 0.45 | 0.42 | 0.84 |
95% CI |  |  | (0.49–0.81) | (0.45–0.72) | (0.35–0.57) | (0.33–0.53) | (0.81–0.88) |
Death at emergency department | 196 (0.70%) | 7 (1.1%) | 23 (0.9%) | 50 (0.9%) | 56 (0.6%) | 60 (0.6%) | Â |
 |  |  |  |  |  |  | OR for 3–year increment |
Crude OR | Â | reference | 0.81 | 0.80 | 0.55 | 0.61 | 0.88 |
95% CI |  |  | (0.34–1.89) | (0.36–1.76) | (0.25–1.20) | (0.28–1.33) | (0.77–1.00) |
Adjusted OR** | Â | reference | 0.94 | 1.18 | 0.80 | 0.99 | 0.97 |
95% CI |  |  | (0.39–2.26) | (0.52–2.69) | (0.35–1.82) | (0.44–2.24) | (0.85–1.10) |
 | Total | 2004–2006 | 2007–2009 | 2010–2012 | 2013–2015 | 2016–2018 |  |
Multiple trauma | N = 9978 | N = 248 | N = 1050 | N = 2152 | N = 3356 | N = 3172 |  |
Death at hospital discharge | 2668 (26.7%) | 119 (48.0%) | 352 (33.5%) | 686 (31.9%) | 822 (24.5%) | 689 (21.7%) | Â |
 |  |  |  |  |  |  | OR for 3–year increment |
Crude OR | Â | reference | 0.55 | 0.51 | 0.35 | 0.3 | 0.78 |
95% CI |  |  | (0.41–0.72) | (0.39–0.66) | (0.27–0.46) | (0.23–0.39) | (0.75–0.81) |
Adjusted OR* | Â | reference | 0.56 | 0.57 | 0.37 | 0.32 | 0.78 |
95% CI |  |  | (0.40–0.80) | (0.41–0.79) | (0.27–0.51) | (0.23–0.45) | (0.75–0.83) |
Death at emergency department | 395 (3.96%) | 18 (7.3%) | 54 (5.1%) | 105 (4.9%) | 120 (3.6%) | 98 (3.1%) | Â |
 |  |  |  |  |  |  | OR for 3–year increment |
Crude OR | Â | reference | 0.69 | 0.66 | 0.47 | 0.41 | 0.81 |
95% CI |  |  | (0.40–1.20) | (0.39–1.10) | (0.28–0.79) | (0.24–0.69) | (0.74–0.89) |
Adjusted OR** | Â | reference | 0.80 | 0.83 | 0.66 | 0.65 | 0.90 |
95% CI |  |  | (0.44–1.45) | (0.47–1.45) | (0.38–1.15) | (0.37–1.15) | (0.82–1.00) |