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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: AJNR Am J Neuroradiol. 2019 Aug 1;40(9):1438–1444. doi: 10.3174/ajnr.A6146

Table 2.

Subgroup characteristics defined by their working memory test z-scores (LNS, DSB < 1 or ≥ 1) and time since injury (< 2 weeks or 2–4 weeks).

LNS < 1 LNS ≥ 1
MTBI < 2 weeks MTBI 2–4 weeks NC MTBI < 2 weeks MTBI 2–4 weeks NC
N 5 10 9 3 1 11
age 31 ± 6 31 ± 9 31 ± 8 25 ± 3 31 35 ± 12
LNS −0.13 ± 0.51 0.07 ± 0.41 0.07 ± 0.32 1.55 ± 0.39 2 1.82 ± 0.62
DSB < 1 DSB ≥ 1
MTBI < 2 weeks MTBI 2–4 weeks NC MTBI < 2 weeks MTBI 2–4 weeks NC
N 4 7 12 4 4 8
age 30 ± 6 29 ± 8 31 ± 7 37 ± 8 26 ± 4 37 ± 14
DSB −0.67 ± 0.27 −0.24 ± 0.25 0.08 ± 0.38 1.42 ± 0.5 1.58 ± 0.32 1.79 ± 0.71