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. 2017 Mar 17;66(9):1–16. doi: 10.15585/mmwr.ss6609a1

TABLE 3. Estimated number* and rate of traumatic brain injury–related emergency department visits, hospitalizations,§ and deaths, by age group and mechanism of injury — United States, 2013.

Age group (yrs) Unintentional motor-vehicle crashes
Unintentional falls**
Unintentionally struck by or against an object
Other unintentional injury, mechanism unspecified††
Intentional self-harm
Assault or homicide
Other or no mechanism specified§§
No. Rate¶¶ (95% CI) No. Rate (95% CI) No. Rate (95% CI) No. Rate (95% CI) No. Rate (95% CI) No. Rate (95% CI) No. Rate (95% CI)
0–4
6,335
31.9 (28.7–35.2)
222,233
1,119.3 (1,007.8–1,230.9)
52,148
262.7 (235.3–290.0)
13,485
67.9 (56.6–79.3)
—***

1,979
10.0 (8.7–11.3)
19,756
99.5 (54.9–144.1)
5–14
21,308
51.7 (47.4–56.0)
132,190
320.6 (291.2–350.0)
120,375
291.9 (264.7–319.2)
33,623
81.5 (74.4–88.6)


10,109
24.5 (22.0–27.0)
27,414
66.5 (41.6–91.4)
15–24
113,743
258.3 (243.2–273.4)
100,364
227.9 (214.3–241.5)
107,138
243.3 (228.4–258.3)
39,520
89.7 (83.6–95.9)
3,254
7.4 (7.0–7.8)
72,787
165.3 (154.2–176.4)
39,072
88.7 (67.9–109.6)
25–34
78,451
182.9 (171.8–194.0)
72,345
168.6 (158.5–178.8)
43,865
102.3 (96.0–108.5)
25,311
59.0 (53.6–64.4)
3,577
8.3 (8.0–8.7)
62,832
146.5 (136.0–157.0)
25,796
60.1 (45.5–74.8)
35–44
51,271
126.5 (118.4–134.5)
69,714
172.0 (162.5–181.4)
32,814
80.9 (76.0–85.9)
19,566
48.3 (44.1–52.5)
3,269
8.1 (7.8–8.4)
37,386
92.2 (85.7–98.8)
18,842
46.5 (35.7–57.3)
45–54
48,286
110.1 (103.5–116.7)
103,051
235.0 (222.8–247.2)
29,894
68.2 (64.0–72.4)
22,167
50.6 (46.2–54.9)
3,903
8.9 (8.7–9.1)
30,056
68.6 (63.6–73.5)
20,411
46.6 (35.7–57.4)
55–64
33,777
85.9 (80.7–91.0)
122,637
311.7 (296.8–326.7)
19,804
50.3 (47.1–53.6)
16,582
42.1 (37.5–46.8)
3,429
8.7 (8.5–8.9)
13,058
33.2 (30.9–35.5)
18,114
46.0 (36.3–55.8)
65–74
17,725
70.3 (65.9–74.6)
136,140
539.8 (511.7–567.9)
11,493
45.6 (42.4–48.8)
9,655
38.3 (33.4–43.2)
2,254
8.9 (8.8–9.1)
3,168
12.6 (11.4–13.7)
15,531
61.6 (50.7–72.5)
≥75
12,397
63.7 (59.3–68.1)
361,738
1,859.0 (1,747.4–1,970.7)
13,305
68.4 (62.6–74.1)
11,051
56.8 (48.3–65.3)
2,189
11.2 (11.0–11.5)
1,468
7.5 (6.7–8.4)
32,205
165.5 (137.1–193.9)
Total
383,293
121.1 (114.4–127.9)
1,320,411
417.3 (395.9–438.6)
430,836
136.2 (127.5–144.8)
190,959
60.3 (55.3–65.4)
22,270
7.0 (6.9–7.2)
232,842
73.6 (68.9–78.3)
217,141
68.6 (53.2–84.1)
Adjusted ††† 121.7 (118.6–124.9)
413.2 (401.4–425.0)
142.1 (137.1–147.2)
61.3 (59.2–63.4)
6.8 (6.7–7.0)
75.5 (73.0–77.9)
68.9 (62.3–75.6)

Sources: For emergency department visits, Healthcare Cost and Utilization Project’s (HCUP) Nationwide Emergency Department Sample; for hospitalizations, HCUP’s National Sample; for deaths, CDC’s National Vital Statistics System.

Abbreviations: CI = confidence interval; TBI = traumatic brain injury.

*Visits with missing age were excluded. Numbers subject to rounding error.

Persons who were hospitalized, died, or transferred to another facility were excluded.

§In-hospital deaths and patients who transferred from another hospital were excluded.

Record-Axis Condition codes were used (usually included both Part I and Part II of Entity-Axis Condition codes).

**Includes falls of undetermined intent to maintain consistency with past data releases.

††E-codes specify that the injury was unintentional but do not specify the actual mechanism of injury.

§§Includes TBIs in which the intent was not determined as well as those due to legal intervention or war. Includes TBIs in which no mechanism was specified in the record. Does not include falls of undetermined intent.

¶¶Age-adjusted to the 2000 U.S. standard population (per 100,000 population).

***Estimates suppressed for the age groups 0–4 and 5–14 years because it is unclear whether children aged <10 years are able to form suicidal intent.

†††Age-adjusted to the 2000 U.S. standard population (per 100,000 population).

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