FIG. 1.

Summary measures of direct medical care costs for each traumatic brain injury (TBI) case minus costs for his or her matched control are provided for specified time periods after baseline by TBI category (Figs. 1A–1D). Data are presented as box and whiskers plots. Dashed horizontal lines depict the median; boxes depict the interquartile range (25th and 75th percentiles); solid horizontal lines depict the mean; vertical lines (i.e., whiskers) depict the range. In each figure, the y axis was truncated to facilitate visualization (i.e., as depicted by the arrows). Some differences were well above the highest value and well below the lowest value shown on the y axis. (A) The differences in direct medical costs for the full time period from baseline to a maximum of 6 years after baseline. (B) Data for case/control pairs that survived 1 day, and differences in direct medical costs from 1 day to a maximum of 6 months after baseline. (C) Data for case/control pairs that survived 6 months, and differences in direct medical costs from 6 months to a maximum of 12 months after baseline. (D) Data for case/control pairs that survived 1 year, and differences in direct medical costs from 1 year to a maximum of 6 years after baseline.