Traumatic Brain Injury Related Hospitalization and Mortality in California

Table 4

Estimated number, percentages, unadjusted and adjusted odds ratio, and 95% confidence interval of traumatic brain injury related mortality in California, 2001–2009.

	Mortality		Unadjusted		Adjusted
	Died	Alive	Odds ratio	95% CI	Odds ratio	95% CI
Causes
Motor v. accident	726 (6.1)	11270 (93.9)	0.612	0.561–0.667	1.270	1.140–1.415
Fall	1342 (7.0)	17771 (93.0)	0.717	0.669–0.770	0.775	0.716–0.839
Assault	397 (6.3)	5894 (93.7)	0.640	0.573–0.715	0.816	0.706–0.943
Other	2237 (9.5)	21251 (90.5)	0.227	0.107–0.481	0.510	0.232–1.121
Struck by	7 (2.3)	293 (97.7)	Reference	Reference	Reference	Reference
Age
0–4	93 (2.4)	3817 (97.6)	0.199	0.162–0.246	0.156	0.119–0.204
5–9	16 (2.1)	744 (97.9)	0.176	0.107–0.289	0.147	0.086–0.253
10–14	19 (2.1)	897 (97.9)	0.173	0.110–0.273	0.121	0.073–0.198
15–19	198 (6.6)	2788 (93.4)	0.581	0.500–0.675	0.415	0.336–0.512
20–24	201 (6.2)	3055 (93.8)	0.538	0.464–0.624	0.420	0.340–0.518
25–34	198 (4.6)	4121 (95.4)	0.393	0.339–0.456	0.333	0.271–0.409
35–44	260 (4.9)	5036 (95.1)	0.422	0.370–0.482	0.398	0.331–0.478
45–54	413 (6.3)	6167 (93.7)	0.548	0.492–0.610	0.461	0.395–0.540
55–64	385 (7.8)	4538 (92.2)	0.694	0.620–0.776	0.625	0.538–0.726
65–74	447 (8.2)	5041 (91.8)	0.725	0.653–0.806	0.627	0.558–0.704
≥75	2479 (10.9)	20275 (89.1)	Reference	Reference	Reference	Reference
Gender
Female	1772 (7.0)	23387 (93.0)	Reference	Reference	Reference	Reference
Male	2937 (8.2)	33092 (91.8)	1.171	1.102–1.245	1.36	1.27–1.46
Race
Blacks	253 (7.4)	3154 (92.6)	0.879	0.769–1.003	1.102	0.945–1.285
Hispanics	777 (5.9)	12454 (94.1)	0.683	0.630–0.741	0.891	0.805–0.985
Asians	269 (8.1)	3048 (91.9)	0.967	0.849–1.100	0.793	0.689–0.912
Other	44 (4.4)	957 (95.6)	0.504	0.371–0.683	0.723	0.516–1.015
Whites	3366 (8.4)	36866 (91.6)	Reference	Reference	Reference	Reference
Insurance
Medicare	2749 (10.2)	24193 (89.8)	Reference	Reference	Reference	Reference
Medicaid	723 (7.6)	8833 (92.4)	0.720	0.661–0.784	1.518	1.318–1.748
Private	703 (5.1)	12963 (94.9)	0.477	0.438–0.520	0.767	0.677–0.869
Other	488 (4.8)	9640 (95.2)	0.446	0.403–0.492	0.827	0.707–0.966
Workers comp	46 (5.1)	850 (94.9)	0.476	0.353–0.642	0.848	0.604–1.192
Severity
Minor	40 (0.4)	8893 (99.6)	Reference	Reference	Reference	Reference
Moderate	117 (0.9)	12224 (99.1)	2.128	1.485–3.050	2.561	1.785–3.67
Serious	1639 (8.7)	17113 (91.3)	21.29	15.54–29.17	30.652	22.34–42.06
Severe	1991 (10.1)	17658 (89.9)	25.07	18.31– 34.32	31.456	22.9–43.18
Critical	902 (68.3)	418 (31.7)	479.75	344.37–668.34	655.24	468.13–917.15
Length of stay
1-2	2338 (49.7)	23540 (41.7)	Reference	Reference	Reference	Reference
3–5	898 (19.1)	15916 (28.2)	0.568	0.525–0.615	0.320	0.293–0.349
6 or more	1473 (31.3)	17023 (30.1)	0.871	0.814–0.933	0.379	0.351–0.410
Admission yr.
2001	435 (6.9)	5861 (93.1)	Reference	Reference	Reference	Reference
2002	479 (7.1)	6261 (92.9)	1.031	0.901–1.179	0.969	0.832–1.129
2003	515 (7.2)	6620 (92.8)	1.048	0.918–1.197	1.014	0.873–1.177
2004	554 (7.6)	6752 (92.4)	1.106	0.970–1.259	1.028	0.887–1.191
2005	594 (7.8)	7023 (92.2)	1.140	1.002–1.296	0.940	0.813–1.087
2006	575 (7.6)	7014 (92.4)	1.105	0.971–1.257	0.970	0.839–1.121
2007	638 (8.0)	7337 (92.0)	1.172	1.032–1.330	0.949	0.823–1.094
2008	475 (9.3)	4613 (90.7)	1.387	1.211–1.589	1.209	1.038–1.408
2009	444 (8.2)	4998 (91.8)	1.197	1.043–1.373	1.010	0.866–1.178