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Table 6 Study variables

From: GCS 15: when mild TBI isn’t so mild

  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