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Table 2 Summary characteristics of patients at arrival and discharge time in UTHSR, 2008–2011 (N=5093)

From: The University of Texas Houston Stroke Registry (UTHSR): implementation of enhanced data quality assurance procedures improves data quality

Demographics and characteristics of patients (N=5093) n %  
Race/Ethnicity Caucasian 2459 48.3  
African-American 1616 31.7  
Hispanic 719 14.1  
Asian 161 3.2  
Other 126 2.5  
  Unknown 12 0.2  
Medical history a Hypertension 3464 68.0  
  Type II diabetes 1375 27.0  
  Atrial fibrillation 595 11.7  
  CAD/MIb 838 16.5  
  Hyperlipidemia 1316 25.8  
  Prior stroke 1610 31.6  
Stroke subtype (diagnosis at discharge) Infarcts (both infarct and non–acute infarct) 2619 51.4  
Hemorrhagec 1254 24.6  
Transient ischemic attack (TIA) 319 6.3  
Not stroke 900 17.7  
  Unknown 1 0.0d  
  All patients admitted to MHH-TMC e
   All patients (N=5093) Infarct f (N=2572) ICH (N=1198)
Hospital arrival mode, n (%) Ambulance 3113 (61.1) 1580 (61.4) 796 (66.4)
Air 1146 (22.5) 604 (23.5) 342 (28.6)
Private vehicle 577 (11.3) 254 (10.0) 15 (1.3)
Other 120 (2.4) 84 (3.3) 16 (1.3)
  Unknown 137 (2.7) 50 (1.9) 29 (2.4)
Initial presentation,n (%) MHH-TMC in-hospital stroke 110 (2.2) 83 (3.2) 11 (1.0)
MHH ED 2985 (58.6) 1627 (63.3) 479 (40.0)
Transfers 1998 (39.2) 862 (33.5) 708 (59.0)
NIHSS on admission, median (IQR)   7 (2~16) 7 (3~15) 14 (5~28)
GCS on admission, median (IQR)   15 (11~15) 15 (12~15) 12 (6~15)
  MHH-TMC ED stroke admissions
   All stroke MHH EDpatients (N=2984) Infarct f (N=1627) g ICH (N=479) h
Symptom onset to presentation time, n (%) ≤ 2 hr 1060 (35.5) 597 (36.7) 228 (47.6)
≤ 3.5hr 1353 (45.3) 753 (46.3) 271 (56.6)
Arrival to CT time (minutes), median (IQR)   34 (22~63) 33 (21~57) 29 (19~42)
Door to needle (tPA) time i (minutes), median (IQR)   69 (53~93) 68 (52~90)k NAj
  Stroke patients transferred to MHH-TMC from other hospitals
   All transferred patients (N=1998) Infarct f (N=862) g ICH (N=708) h
Received tPA and transferred to MHH, n (%)   276 (13.8) 231 (26.8) NAj
  Characteristics of stroke patients at discharge from MHH-TMC
   All patients (N=5093) Infarct f (N=2572) ICH (N=1198)
Death, n (%)   417 (8.2) 150 (5.8) 256 (21.4)
mRS on discharge, median (IQR)   4 (2~5) 4 (2~4) 4 (3~5)
mRS 0–1 on discharge, n(%)   1052 (20.7) 445 (17.3) 86 (7.2)
  1. a Some patients had more than one prior medical condition; b CAD (coronary artery disease)/MI (myocardial infarction); c Hemorrhage category is primarily spontaneous ICH, but also includes primary IVH and rare cases of SAH, EDH, SDH;d The original value was 0.02%, after rounding it was changed to 0.0%;
  2. e MHH-TMC = Memorial Hermann Hospital, Texas Medical Center, Houston; f Infarct does not include non–acute Infarct; g The sum of infarct patients in the stratified (or subgroup) analyses do not add up to 2572, because 83 patients were admitted to the stroke service from other units of MHH-TMC;h The sum of ICH patients in the stratified (or subgroup) analyses do not add up to 1198 because 11 patients were admitted to the stroke service from other units of MHH-TMC; i Door to needle (tPA) time includes off-label tPA treatment;j NA = Not applicable; k This includes patients treated with off-label thrombolysis.