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

TABLE 4. Estimated number* and age-adjusted rate of traumatic brain injury–related emergency department visits, hospitalizations,§ and deaths, by sex and mechanism of injury — United States, 2013.

Sex 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)
Male
201,012
128.2 (124.8–131.5)
603,444
400.7 (388.7–412.8)
253,848
167.3 (160.9–173.7)
119,637
77.4 (74.9–79.9)
18,509
11.7 (11.5–12.0)
149,271
96.0 (92.8–99.1)
118,904
77.7 (70.1–85.2)
Female
182,220
115.5 (112.3–118.8)***
716,915
417.7 (405.9–429.4)***
176,975
115.6 (111.7–119.5)***
71,306
45.1 (43.3–47.0)
3,760
2.3 (2.2–2.4)***
83,554
54.8 (52.7–57.0)***
98,225
59.8 (53.8–65.7)
Total 383,231 121.7 (118.6–124.9) 1,320,360 413.2 (401.4–425.0) 430,822 142.1 (137.1–147.2) 190,944 61.3 (59.2–63.4) 22,270 6.8 (6.7–7.0) 232,828 75.4 (73.0–77.9) 217,129 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.

¶¶Per 100,000 population.

***Significant difference in rate compared to men based on t-test (p<0.05). Only selected comparisons were tested for statistical significance.