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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: J Neuropsychiatry Clin Neurosci. 2017 May 31;29(4):334–342. doi: 10.1176/appi.neuropsych.16050088

Table 5. Comparison of those with and without aggression on demographic and injury variables at 6 and 12 months.

Variables 6 months 12 months


No Aggression (N=43) Aggression (N=30) df t(P) No Aggression (N=44) Aggression (N=27) df t(P)
Demographic Variables
Age* 44.9(2.88) 41.4(3.37) 71 0.8(0.43) 45.6(3.16) 43.2(3.39) 69 0.51(0.61)
Education* 13.6(0.45) 12.2(0.5) 71 2.1(0.04) 12.8(0.36) 13.7(0.72) 69 -1.12(0.24)
Male gender 24(55.8%) 21(70%) 0.328 32(72.7%) 13(48.2%) 0.045
Caucasian race 23(53.5%) 18(60%) 0.64 21(47.7%) 16(59.3%) 0.46
Living with others 36(83.7%) 24(82.8%) 1.00 36(81.8%) 25(96.2%) 0.14
Married/Partner 23(53.5%) 16(53.3%) 1.00 22(50%) 18(66.7%) 0.22
Working PT/FT 33(76.7%) 22(73.3%) 0.79 33(75%) 18(66.7%) 0.59
Religion 34(81%) 27(90%) 0.34 37(86.1%) 23(85.2%) 1.00
Clinical Variables
GCS* 11.8(0.6) 12(0.8) 60 -0.11(0.91) 11.7(0.6) 12.1(0.9) 58 -0.43(0.67)
Type of injury: MVA 26(61.9%) 16(57.1%) 0.80 22(51.2%) 17(65.4%) 0.32
Body injury present 23(54.5%) 24(82.8%) 0.012 28(65.1%) 19(70.4%) 0.80
CT Head 5(100%) 0 - 4(100%) 2(66.7%) 0.43
Frontal Cortex Lesion 20(46.5%) 7(24.1%) 0.08 18(41.9%) 12(44.4%) 1.00
Temporal Cortex Lesion 8(18.6%) 6(20.7%) 1.00 6(14.0%) 7(26.9%) 0.21
Parietal Cortex Lesion 7(16.3%) 3(10.3%) 0.73 7(16.3%) 2(7.7%) 0.47
Occipital Cortex Lesion 2(4.7%) 3(10.3%) 0.39 4(9.3%) 2(7.7%) 1.00
Brain Surgery 4(9.3%) 3(10.3%) 1.00 2(4.7%) 5(19.2%) 0.09
Any psychiatric pre-TBI 29(67.4%) 23(76.7%) 0.44 30(68.2%) 18(66.7%) 1.00
Any psychiatric post-TBI 35(81.4%) 24(80.0%) 1.00 34(77.3%) 25(92.6%) 0.12
Major Depression pre-TBI 7(63.6%) 2(22.2%) 0.09 4(44.4%) 4(50.0%) 1.00
Major Depression post-TBI 2(33.3%) 0 0.46 0 1(33.3%) 0.33
Anxiety Disorder pre-TBI 2(4.7%) 2(6.7%) 1.00 1(2.3%) 2(7.4%) 0.55
Anxiety Disorder post-TBI 6(54.5%) 10(90.9%) 0.15 8(61.5%) 8(88.9%) 0.33
Alcohol pre-TBI abuse/dependence pre-TBI 18(42.9%) 15(53.6%) 0.47 16(38.1%) 12(46.1%) 0.61
Alcohol post-TBI abuse/dependence post-TBI 12(70.6%) 10(71.4%) 1.00 13(72.2%) 9(75.0%) 1.00
Substance pre-TBI abuse/dependence pre-TBI 18(43.9%) 16(53.3%) 0.48 21(48.8%) 9(34.6%) 0.32
Substance post-TBI abuse/dependence post-TBI 7(58.3%) 9(69.2%) 0.69 10(66.7%) 4(50.0%) 0.66
Adult Behavior** pre-TBI 0 0 - 1(2.9%) 0 1.00
Adult Behavior** post-TBI 0 1(3.6%) 0.41 1(2.6%) 0 1.00
Social Functioning pre-TBI TBI* 0.21(0.02) 0.24(0.03) 70 -0.81(0.42) 0.19(0.02) 0.22(0.03) 67 -0.78(0.44)
Social Functioning pre-TBI TBI* 0.25(0.02) 0.3(0.03) 67 -1.4(0.17) 0.23(0.02) 0.31(0.03) 66 -2.46(0.02)
Social Ties pre-TBI* 2.98(0.22) 3.41(0.38) 69 -1.1(0.29) 2.91(0.19) 3.2(0.37) 66 -0.77(0.44)
Social Ties post-TBI* 3.58(0.23) 3.61(0.32) 67 -0.1(0.95) 3.58(0.25) 3.56(0.29) 66 0.07(0.94)
Personal & Instrumental activities of daily living pre-TBI* 0.81(0.41) 0.47(0.2) 69 0.66(0.51) 1.07(0.42) 0.42(0.19) 66 1.18(0.24)
Personal & Instrumental activities of daily living post-TBI* 4.66(0.81) 5.21(1.07) 67 -0.42(0.67) 4.24(0.78) 6.04(1.01) 66 -1.42(0.16)
Any MDGMC 5(11.9%) 5(18.5%) 0.497 4(9.8%) 8(30.8%) 0.048
MDGMC at 3 months 3(7.1%) 4(14.8%) 0.42 2(4.9%) 6(23.1%) 0.048
MDGMC at 6 months 2(4.8%) 4(14.8%) 0.201 - - -
MDGMC at 12 months - - - 1(2.4%) 1(3.7%) 1.00
*

t-test; All others are Fisher's exact test

**

includes legal problems (arrests, incarcerations)

All Pre- used variables in baseline; All Post- used variables in 3months

MDGMC= Major depression due to general medical condition (TBI)