Figure 1. Proportion of visits and charges with TBI-related diagnoses (visits resulting in admission).
Error bars indicate 95% confidence intervals.
P value <0.001 for all years.
TBI-related visit proportion was calculated as the number of TBI-related visits resulting in admission divided by the total number of visits resulting in admission. TBI-related visit charge proportion was calculated as the charges associated with TBI-related visits resulting in admission divided by the total charges for all visits resulting in admission.