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. 2023 Nov 15;6(11):e2343410. doi: 10.1001/jamanetworkopen.2023.43410

Table 1. Cohort Demographics.

Characteristic, No. Cohort Total
RAPBI Pilot-RAPBI NCH KKI LLU DU 1 DU 2 BCM 1a BCM 2a BCM 3a MCRI UT Houstonb
Participants
Total 109 22 53 42 52 44 49 99 32 31 22 43 598
msTBI group 53 13 29 29 21 18 22 50 15 22 22 20 314
Comparison group 56 9 24 13 31 26 27 49 17 9 0 23 284
Sex
Male 72 14 37 27 34 20 23 71 21 21 17 29 386
Female 37 8 16 15 18 24 26 28 11 10 5 14 212
Age, y
Mean (SD) 15.61 (2.79) 16.14 (1.86) 11.80 (2.38) 14.57 (2.43) 12.89 (3.45) 14.34 (2.80) 14.60 (2.73) 13.53 (2.83) 14.56 (2.62) 15.48 (2.34) 11.13 (2.86) 12.70 (2.41) 14.05 (3.06)
Range 8.40 to 19.70 12.10 to 18.57 8.16 to 16.52 8.12 to 18.98 5.45 to 17.78 8.52 to 19.00 8.52 to 18.97 7.44 to 18.70 10.67 to 19.40 10.61 to 18.51 5.83 to 16.83 8.16 to 16.91 5.45 to 19.70
TSI range, wkc
Period 1 3.9-36.3 11.7-36.2 58.7-42.4 4.1-14.6 1.0-2.6 15.6-56.2 NA 11.7-28.8 0.14-15.4 2.4-60.0 4.5-37.6 4.1-18.3 NA
Period 2 49.2-82.7 59.1-68.6 NA 51.9-76.0 48.1-62.1 NA NA 49.6-117.8 NA NA 99.8-124.0 55.8-63.0 NA
Scans
Total 158 24 53 55 100 44 49 134 32 31 43 60 783
Longitudinal 49 2 NA 13 48 NA NA 35 NA NA 21 17 185

Abbreviations: BCM, Baylor College of Medicine; DU; Deakin University; KKI, Kennedy-Krieger Institute; LLU, Loma Linda University; MCRI, Murdoch Children’s Research Institute; msTBI, mild complicated-severe traumatic brain injury; NA, not applicable; NCH, Nationwide Children’s Hospital; RAPBI, Recovery After Pediatric Injury; TSI, time since injury; UT, University of Texas.

a

Indicates sites with comparison groups consisting of individuals with orthopedic injury.

b

UT Houston had both orthopedic individuals and healthy controls in the comparison group.

c

Studies with 2 time periods are longitudinal studies.