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Table 6 Study variables
| Variable / Field Name | Field choices | N complete (out of 2211 unless noted otherwise) | |
|---|---|---|---|
| ed_arrivel_date | ED Arrival Date | date | 2211 |
| age_in_years | Age | number in years | 2211 |
| sex | Gender | 0, Female | 1, Male | 2211 |
| race | Race | 0, Caucasian | 1, Black | 2, Hispanic | 3, Native American | 4, Asian | 5, Other | 2211 |
| marital_status | Marital Status | 0, Single | 1, Married | 2, Divorced/ Separated | 3, Not known | 2210 |
| employment | Employment Status | 0, Not employed | 1, Employed | 2, Retired | 3, Student | 4, Not known | 2656 |
| date_head_injury | Date of Head Injury | date | 1959 |
| time_head_injury | Time of Head Injury | 0, 0–12 h ago | 1, 12–24 h ago | 2, More than 24 h ago | 2192 |
| head_injury_reporting | Head Injury Reporting | 0, Self Reported | 1, Friend/ family | 2, EMS | 2211 |
| asso_vomit | Vomiting after injury | 0, No | 1, Yes | 2210 |
| asso_seizure | Seizures after injury | 0, No | 1, Yes | 2209 |
| loss_consciousness | Loss of Consciousness | 0, No | 1, Yes | 2, Unknown | 2211 |
| aoc | Altered Mental Status/Alteration of Consciousness (AOC) | 0, No | 1, Yes | 2, Unknown | 2211 |
| pta | Post Traumatic Amnesia (PTA) | 0, No | 1, Yes | 2, Unknown | 2211 |
| fall | Association of Fall with Injury | 0, No | 1, Yes | 2, Unknown | 2211 |
| occupational | Was this an occupational injury? | 0, No | 1, Yes | 2, Unknown | 2210 |
| hit_struck_fall_head | Did anything hit/struck/fall on head? | 0, No | 1, Yes | 2, Unknown | 2211 |
| sport | Did the injury occur while playing a sport? | 0, No | 1, Yes | 2, Unknown | 2211 |
| recreational_activity | Injury occurred during a recreational activity? | 0, No | 1, Yes | 2, Unknown | 2210 |
| rec_vehicle | Was a recreational vehicle involved? | 0, No | 1, Yes | 2, Unknown | 379/379 |
| rec_vehicle_type | What type of Rec Vehicle was involved? | 0, Bicycle | 1, Motorcycle | 2, ATV | 3, Other | 4, Watercraft | 5, Not Known | 290/290 |
| helmet_use | Use of Helmet in Recreational Vehicle injury | 0, No | 1, Yes | 2, N/A | 284/290 |
| traffic_accident | Did the Injury occur in a traffic accident? | 0, No | 1, Yes | 2, Unknown | 2211 |
| traffic_accident_driver | Location of Patient | 0, Driver | 1, Front Seat Passenger | 2, Back Seat Passenger | 3, Open Air Seating | 4, Other | 5, Unknown | 746 |
| seatbelt | Was a seatbelt worn? | 0, No | 1, Yes | 2, N/A | 742 |
| alcohol_bf_injury | Alcohol Consumption Prior to Injury (by Patient) | 0, No | 1, Yes | 2, Unknown | 2211 |
| assaulted | Was the patient Assaulted? | 0, No | 1, Yes | 2, Unknown | 2211 |
| location_injury_occured | At what location did the injury occur? | 0, Inside a Home | 1, Outside a home (yard/driveway) | 2, On the road | 3, “Outdoors” | 4, At Work | 5, Restaurant or Bar/Club | 6, Store | 7, Other Public Area (Park/sidewalk) | 8, Other | 2211 |
| transfer | Was the patient transferred from another facility? | 0, No | 1, Yes | 2211 |
| mode_trans | Mode of Transportation | 0, Walk in/private vehicle | 1, Ambulance | 2, Helicopter | 2211 |
| admitted_dis_or | Discharged or Admitted | 0, Discharged | 1, Admitted | 2211 |
| hlos | Hospital Length of Stay | number value | 666/666 |
| icu | ICU Stay? | 0, No | 1, Yes | 666/666 |
| icu_los | ICU Length of Stay | number value | 192/192 |
| disch_disposition | Discharge Disposition | 1, routine dc| 2, rehab | 3, psych | 4, expired| 5, hospice/NH| 6, AMA| 7, law enforcement | 2211 |
| in_hospital_death | In hospital death? | 0, No | 1, Yes | 2211 |
| prehosp_gcs_completion | Pre Hospital Glasgow Coma Scale Completion | 0, No | 1, Yes | 946/1381 |
| Pre Hospital GCS | number from 3 to 15 | ||
| tbi_severity_prehosp | TBI Severity- Pre Hospital | 0, Mild | 1, Moderate | 2, Severe | 946/1381 |
| ed_gcs_completion | ED Glasgow Coma Scale Completion | 0, No | 1, Yes | 2211 |
| ed_gcs_score_1 | ED GCS Score | number from 3 to 15 | 2211 |
| tbi_severity_ed | TBI Severity- ED | 0, Mild | 1, Moderate | 2, Severe | 2211 |
| surgical_intervention | Surgical intervention done? | 0, No | 1, Yes | 2211 |
| ct_scan | CT Scan Done? | 0, No | 1, Yes | 2211 |
| head_ct_abmormal | Head CT abnormal? | 0, No | 1, Yes | 1996/1996 |
| ct_findings | Please check any/all abnormalities that are observed on the CT scan: | 0, Extra-calvarial soft tissue swelling | 1, Fracture of skull | 2, Fracture of Maxillo-facial bones (except nose) | 3, Fracture of Nasal bones | 4, Calvarial fracture through carotid canal | 5, Calvarial fracture through foramen magnum | 6, Subfalcine herniation | 7, Upward trans-tentorial herniation | 8, Downward trans-tentorial herniation | 9, Uncal herniation | 10, Tonsillar herniation | 11, Epidural hematoma | 12, Subdural hematoma | 13, Subarachnoid hemorrhage | 14, Intraventricular hemorrhage | 15, Parenchymal or Hemorrhagic contusion | 16, Diffuse Axonal Injury (Unilateral / Bilateral) | 485/485 |
| alcohol_level | Alcohol Blood Level | number value | 233 |
| urine_drug_screen | Urine Drug Screen | 0, Negative | 1, Positive | 157 |
| arr_meds | Arrival Anticoagulant Medications? | 0, No | 1, Yes | 2167 |
| med_type | Medications- Types | 0, Warafrin | 1, Aspirin | 2, Plavix | 3, Aggrenox | 4, Ticlid | 5, Dipyridamole | 6, Heparin | 7, Enoxaparin | 8, Dabigatran | 2167/2167 |
| anticoag_rev_int | Anticoagulation Reversal Intervention? | 0, No | 1, Yes | 189/242 |
| int_type | Intervention- Type | 0, IV Vitamin K | 1, FFP | 2, PCC | 3, Factor IX Complex | 4, Recombinant Factor VIIa | 5, SC Vitamin K | 6, Other | 14/14 |
