Virginia Commonwealth University

Center for Rehabilitation Science and Engineering (VCU-CERSE)

Extended Rehabilitation Length of Stay (eRLOS) Prediction Calculator

The eRLOS model is a clinical prediction rule designed to be used by healthcare professionals for acutely identifying patients at risk for extended rehabilitation length of stay after traumatic brain injury.

What is the patient's highest
level of education Pre-injury Level of Education: The highest level of education successfully completed at the time just prior to injury
  • Less than High School (11th grade or less)
  • High School/GED (high school diploma, GED, or trade school)
  • Greater than High School (some college, Associate’s , Bachelor’s, Master’s, or Doctoral degree)
at the
time of injury?

What was the patient's
cause of injury Cause of Injury
  • Fall
  • Vehicular/Sports (motor vehicle, motorcycle, bicycle, all-terrain vehicle/cycle, other vehicular, water sports, field/track sports, gymnastic activities, winter sports, air sports, other sports)
  • Violent (gunshot wound, assaults with blunt instrument, other violence)
  • Other (hit by falling/flying object, pedestrian, other)

What is the patient's motor FIM Motor Functional Independence Measure (FIM)
Valid range 13 - 91

at rehabilitation admission?
What is the patient's cognitive FIM Cognitive Functional Independence Measure (FIM)
Valid range 3-35

at rehabilitation admission?
Was there evidence of punctate/petechial hemorrhage?
How many days did the patient spend in Acute Care Number of days in acute care
Valid range (0 or positive integers)
What is the patient's
primary payor source Primary Payor Source
  • Commercial (workers’ compensation, Blue Cross/Shield, other private insurance, HMO, No Fault Insurance, PPO, CHAMPUS)
  • Medicaid (traditionally or managed care administered Medicaid, State Crippled Childrens’, Department of Rehabilitation, Medicaid pending)
  • Medicare (traditionally or managed care administered Medicare)
  • Uninsured (private pay, Hospital (free bed), other)

Additional Information
For questions and comments please contact Dr. Juan Carlos Arango-Lasprilla ( or Dr. Jessica McKinney Ketchum (